Discover the Future of Pipe Manufacturing with the Revolutionary PTFE Pipe Extruder Machine!

Introducing the PTFE Pipe Extruder Machine – the cutting-edge solution for all your pipe manufacturing needs! This state-of-the-art machinery revolutionizes the industry by producing high-quality, durable, and versatile PTFE pipes. The future is here, and it's time to embrace the innovation that will propel your business to new heights. The PTFE Pipe Extruder Machine is designed with efficiency, precision, and sustainability in mind. With its advanced technology, this machine delivers flawless PTFE pipes in a fraction of the time, reducing production costs and increasing output. Its user-friendly interface ensures easy operation, while its compact design allows for seamless integration into your existing manufacturing setup. In addition to its remarkable performance, the PTFE Pipe Extruder Machine is also environmentally friendly. By minimizing waste and utilizing energy-efficient processes, this machine promotes sustainable production practices that will benefit both your business and the planet. Don't let your competitors get ahead – upgrade to the PTFE Pipe Extruder Machine today and experience the unparalleled benefits of this game-changing technology! Experience the future of pipe manufacturing. Discover the PTFE Pipe Extruder Machine. WhatsApp/phone: +86 19975113419 mail: info@ptfe-machinery.com https://www.sukofurnace.com/ https://www.sukoptfe.com/ https://ptfe-machinery.com/ https://www.sukopolymer.com/ https://www.sukoplastic.com/

PTFE Products - Teflon PTFE Hose Pipe Tube

WhatsApp/phone: +8619975113419 mail: info@ptfe-machinery.com https://ptfe-machinery.com/ https://www.sukopolymer.com/

PTFE Products - Stainless steel braided Teflon liner Tube pipe - The production process

SuKo's Stainless steel braided Teflon PTFE liner Tube pipe weaving video. 

WhatsApp/phone: +8619975113419 

mail: info@ptfe-machinery.com 

https://ptfe-machinery.com/ 

https://www.sukopolymer.com/

PTFE Products - Teflon Super Huge Large Size Tube Rod Plate Pipe

PTFE Products - Teflon Super Huge Large Size Tube Rod Plate Pipe by SuKo

WhatsApp/phone: +8619975113419

mail: info@ptfe-machinery.com

https://ptfe-machinery.com/

https://www.sukopolymer.com/

PTFE Products - PTFE Teflon Tube Pipe by SuKo

PTFE Products - PTFE Teflon Tube Pipe by SuKo 

WhatsApp/phone: +8619975113419 

mail: info@sukoptfe.com 

https://ptfe-machinery.com/ 

https://www.sukopolymer.com/

How do medical multi-lumen tubing help the fight against Covid-19

Amid the Covid-19 virus outbreak, medical  PTFE multi-lumen tubing is playing an important part in helping fight the global pandemic. In this article, SuKo will explain what medical tubes are, how they’re used and why they’re helping in the fight against Covid-19.

What are medical tubes?

Medical tubes are used as part of equipment to deliver fluids to and from the body, and can also be used for catheters and respiratory equipment. Some medical tubing should be custom produced with different chambers or cores for delivering medication to the body. Medical tubing has become an essential component in the fight against Covid-19 considering the increased number of ICU patients and the increasing demands for ventilators and other respiratory equipment.

What plastic is used for a medical tube?

PTFE is one of the most commonly selected plastics for medical tubing, because it’s adaptable and can be sterilized. Other types of plastic used in medical grade tubing include more flexible materials such as PVC, TPU, TPE, and TPV, etc.

Sterilization and antibacterial properties of medical tubes

Although single-use plastic is frowned upon in everyday life, it can help prevent the spread of viruses and diseases in the medical profession, which is because it’s more hygienic to dispose of items used to treat those with highly contagious viruses rather than to re-use products.

According to medical tubing companies, medical grade plastics should be able to withstand high temperatures and corrosion for optimum cleaning in places where medical equipment is safe to be sterilized and cleaned. Some medical grade plastics can be fitted with anti-bacterial protection to help prevent the spread of contagious illnesses in hospitals and healthcare environments.

How are medical multi-lumen tubes helping the fight against Covid-19?

Medical multi-lumen tubes, key component of medical devices and respiratory equipment including ventilators which aid breathing, have been used in healthcare for many years to enhance patient care and are critical to patient care in intensive care units. As you know, one of the known symptoms of Covid-19 is shortness of breath, which results from the fact that the virus attacks the lungs and pneumonia and respiratory complications will also occur to people with severe symptoms. Therefore, thin wall medical tubing is helping keep patients affected by the disease alive.

Find out more about medical tubing here . If you have an urgent enquiry about medical grade tubing you can contact our team on info@sukoptfe.com.

Top 4 Ways to Prevent The Aging of PTFE Tubes

Nowadays, many products stand out in the development of technologies and industry, and best PTFE tube is one of these products that play an important role in various fields. But have you ever noticed the aging of PTFE tubes? The performance of PTFE tubes will also be reduced after aging. So a series of measures should be taken to prevent the aging at the later stage of the production of PTFE tubes. The aging of PTFE tubes is natural and cannot be prevented, but the only thing you can do is to slow the aging speed of PTFE tubes. To help slow down the aging rate of PTFE tubes, you should strengthen maintenance in using PTFE tubes and take a series of measures to prevent this situation. Here Suko offers you the major four methods to slow down the aging speed of your PTFE tube.

1. When choosing the sizing material of PTFE tubes, you should use sulfur curing system whenever possible. Due to the heat resistance of its vulcanized rubber, it can be modified by reducing or avoiding the use of elemental sulfur, which can minimize or remove polysulfide crosslinks and produce mainly monosulfide or disulfide crosslinks, thus slowing down the aging of teflon tubes.

2. To ensure that the material achieves the desired heat resistance, the use of peroxide is required. In this case, peroxide vulcanization produces carbon with better thermal stability and carbon cross-linking bonds. PTFE tube manufacturer also notes that you should pay special attention to other additives in the use of peroxides. For example, the choice of antioxidants needs to be more stringent, as many of them interfere with the vulcanization of peroxides. Therefore, you can also use paraffin oil, an effective additive that will not interfere with peroxide vulcanization.

3. In addition, in order to prevent the partitioning of the peroxide cation and avoid too low vulcanization of the high-pressure hose (indicated by lower hardness, lower modulus and higher compression and long-term deformation), you should use peroxide to reduce the amount of acidic filler. If possible, the addition of alkaline compounds (e.g. zinc oxide or magnesium oxide) usually improves the cross-linking efficiency of the peroxide.

4. When producing best ptfe tubes, some additives can be added, such as antioxidants, and alkaline compounds, etc., so as to improve the cross-linking efficiency of peroxides and delay the aging of teflon tubes.

THREE COMMON PROBLEMS WITH PTFE TUBES

 PTFE tube or Teflon tube, a semi-transparent, chemically inert and non-toxic material, has been mostly used in applications requiring resistance to high temperatures, including medical and health care, chemical, aviation, national defense, cutting-edge science and technology, and mechanical engineering, etc. One of its unique features is temperature resistance and its working temperature is from -190℃ to +260℃, so it can be used in elevated temperature applications which require high temperatures of over 200℃.  PTFE tubes have very good chemical resistance to common solvents, acids, alkali and bases, and excellent dielectric insulation properties.

Do you meet any problems when using a PTFE tube? Here SuKo Polymer Machine Tech Co., Ltd., a well-known China PTFE tube manufacturer and exporter, explains three typical problems to help you make better use of PTFE tubes.

1. How to connect PTFE tubes?

The continuous advancement of anti-corrosion technologies and innovation of anti-corrosion materials promote PTFE to be an attractive anti-corrosion material due to its excellent chemical stability, and high temperature and chemical corrosion resistance. But PTFE material has high lubricity and non-adhesive property, making it difficult to connect PTFE tubes. To solve this problem, hot air welding method and manual flanging method can be adopted to connect PTFE tubes.

2. Precautions of PTFE tube installation

The lined plastic is soft when drilling, but it is more troublesome to force a rigid drill bit, which will easily destroy the internal steel lined plastic pipe and cause edges to be hard to be flush, so it is recommended to use a cutter to open the hole. Lined plastic residues will fall into the original PTFE tubes during the hole opening process, so you should pay more attention during the operation, otherwise it will lead to blocked end water points. No electric welding tool should be used for punching holes or installing branch pipes, otherwise lined plastic of steel PTFE tubes will be destroyed.

3. How to treat the surface of PTFE tubes?

The surface of a PTFE tube should not come into contact with aggressive materials such as oil, solvents, and corrosive materials, etc. The surface should be cleaned with water and detergent and rinsed well after staining. The use of solvents and corrosive cleaning materials is prohibited.
You may encounter other problems when use a PTFE tube except these three problems, and don’t worry. You can find SuKo and will get necessary guidance and help.

Measurement for shear viscosity spectrum of polymer melts by using screw extruder capillary

Most polymer materials are processed in the melt state, which involves melt flow and deformation, which not only affects the processing process itself, but also affects the final performance of the product. Therefore, the study of rheological properties of polymer materials has been a hot topic. Accurate measurement of rheological parameters is the basis of in-depth study of rheological properties.

Shear viscosity is an important parameter to characterize the rheological behavior. The so-called shear viscosity of polymer melt is the ratio of shear stress and shear rate that melt is subjected to in the process of flow. Polymer melt causes pseudoplastic fluid, and its flow behavior has the characteristics of shear thinning. It is usually necessary to use the relationship curve between shear viscosity and shear rate, namely shear viscosity spectrum, to fully reflect the processing characteristics of polymer melt.

The basic method of measuring melt viscosity is to try to make the melt flow through a long and thin capillary tube, such as a round capillary tube. The shear stress can be calculated by measuring the pressure drop at both ends of the melt as it flows through the capillary tube. The shear rate can be calculated by measuring the flux of melt per unit time. Thus the melt viscosity can be obtained.

The conventional way to get the melt out of the capillary tube is to use piston propulsion. The advantage of this method is that it USES fewer test materials and can obtain higher shear stress. The high pressure capillary rheometer is based on this principle [4].However, the disadvantage of this test method is that the material cannot be tested under the actual processing conditions, and it is difficult to obtain the rheological properties of the polymer melt when it is processed. Especially in the study of blending modification of several polymer materials, the polymer melt needs the strong shearing action of screw to achieve the purpose of blending. High pressure capillary rheometer is not suitable for testing such materials.

The screw extrusion capillary rheological test device can solve the above problems. The device USES the propulsive force of the screw to make the polymer melt flow through the capillary tube. Therefore, the shear viscosity of polymer melt can be measured under conditions closer to real processing. This method is particularly suitable for the measurement of the rheological properties of thermoplastic materials and their mixtures. Because the measurement simulates the real experimental environment, the obtained test parameters can more accurately describe the behavior of materials in actual processing.

Shear viscosity spectra of polymer melts can be measured using specialized test instruments, such as high pressure capillary rheometers, or combined revolutions. However, these devices are expensive and limited in practical use, especially in the application of large-scale industrial production. In fact, it is not necessary to rely on the special test instrument, as long as the shear viscosity test principle, you can use a simple small single-screw extruder and capillary mold, constitute a low-cost shear viscosity spectrum test device. Combined with computer data processing, the shear viscosity spectrum of polymer melt can be easily and quickly obtained. This method is especially suitable for small and medium-sized enterprises to carry out product development and raw material inspection.

Study on Sintering of Ptfe

From the perspective of the three factors that determine the properties of PTFE products -- molecular weight, crystallinity and voidage, the voidage is mainly affected by the preforming pressure, and the molecular weight and crystallinity all change with the different sintering conditions. Therefore, sintering process conditions play a decisive role in the final properties of products such as density, hardness, permeability and mechanical properties.

Wang ping found that the sintering process of PTFE was affected by the rising and falling speed, sintering temperature and sintering time. The larger the product, the slower the speed of rising and cooling, the longer the sintering time. The sintering temperature of suspension resin is higher than that of dispersion resin. The sintering temperature of pure material products is higher than that of filled products. In general, the rate of warming is faster than the rate of cooling. In the same sintering furnace, pure material and filling products cannot be mixed; Products with different sintering conditions cannot be mixed. Products of different raw materials cannot be mixed. Taking the production of 3-layer molded circular plate with diameter of 1 m, thickness of 20 mm, double layer as pure ptfe and middle layer as filled ptfe as an example, the compression strength, bending strength, hardness and other mechanical properties of the circular laminated plate produced by this technology have been greatly improved.

Liu xianlan studied the forming process characteristics, forming method and mold design characteristics of PTFE, analyzed the defects and causes of PTFE products produced by cold pressing and sintering, and put forward the treatment methods. PTFE can be molded by a variety of preforming processes, such as molding, extrusion, hydraulic molding, push molding and secondary processing, and then sintered to the final product.PTFE molding is mostly made of suspended resin. When the thickness of sheet is less than 1.5mm, disperse resin is used. Its technological process: resin - sieve (suspension resin after pounding, loose, and the 20 mesh mesh sieve) - press (PTFE powder loading the mould under pressure from 20 to 35 MPa, after press compaction forming) - sintering (in 370 ~ 380 "C temperature sintering in sintering furnace) - moulded products (under free state within the mold or after cooling to finalize the design as required by the board, rods, tubes, gaskets and packing products, etc.).Hydraulic method is also called the equilibrium method or rubber molding in its operating process is: put rubber bag in die - connected to the water pump, filling the water swell the rubber bag into a cylindrical - resin evenly join between bag and external mold mold closing - continue to gradually increase the water pressure, water filling up to 12 ~ 13 mpa pressure maintaining 30 min: after water - decompression, ripping, sintering, cooling is the use of bright and clean appearance. Push is also called the paste extrusion molding, 20 ~ 30 mesh sieve dispersion resin and organic liquid (such as toluene, petroleum ether, the solvent oil) mixture 1:5 paste mixture, preloading into thick wall cylinder billet, push into the compressor cylinder, heating, with a plunger push molding, after drying in the 360 ~ 380 ° C temperature sintering, after cooling products have strong push tube, rod, etc.Extrusion molding can be divided into two types: screw extrusion and plunger extrusion. The pre-sintered resin after crushing and sifted is added to the material cylinder. Through screw rotation or reciprocating push of plunger, the raw material is transported to the extruder at the same time of compaction.

Wang ping studied the forming process of PTFE foam material. Suspended polytetrafluoroethylene is used as raw material, and condensed cyclic aromatic hydrocarbons are selected as pore-forming agent. After mixing, preforming products are preformed and sintered. At the initial stage of sintering, drying process is adopted to make pore-forming agent escape, and then resintering stage is entered. Foam materials with different dielectric constants can be prepared in different proportions to meet various requirements.

Chen xu et al. conducted compression test and sintering test on PTFE, discussed the relationship between density, compression strength and compression modulus, and analyzed the compression strength of specimens under different sintering processes, and obtained more appropriate molding pressure and sintering process. The results showed that the compression strength of PTFE decreased with the increase of pressing pressure, and the compression modulus increased with the increase of pressing pressure. The molding pressure was 27.5mpa, sintering temperature was 380 C, and the insulation time was 4h.

In order to overcome the disadvantages of pure ptfe, such as poor abrasion resistance and large thermal expansion coefficient, Raytheon studied the bronze-filled particles in ptfe, and expanded the application scope of ptfe. The conventional warm pressing molding of ptfe is characterized by long cycle, poor performance, low dimensional accuracy and smoothness, while the warm pressing molding in this study has fewer working procedures, short cycle and significantly improved mechanical properties.

What is suspended ptfe and dispersed ptfe?

Due to the different polymerization methods of ptfe, there are suspension materials (suspension polymerization) and dispersion materials (dispersion polymerization), namely suspension ptfe, disperse ptfe, the processing methods of the two materials are also different.

Suspended material (suspended polytetrafluoroethylene)

Its main forming method is die pressing method, that is, white powder without a little additive, then die pressing forming, sintering above its melting point temperature, and then through appropriate mechanical processing into products, the representative products for the plate, bar, tube, film four categories.

Dispersion material (ptfe)

PTFE fine powder prepared by dispersion polymerization method is generally referred to as "dispersion".Because of the fibrotic properties of this fine powder, especially at temperatures above 20℃, it is recommended to store, transport and mix the material at 5 ~ 10℃.The forming method of this kind of material is to use an auxiliary agent (usually petroleum ether or gasoline) and powder after mixing in the environment of 24℃ or more for about 24h (complete the crystal phase change) and then forming, with the piston extrusion forming, drying, burning.This processing method is commonly known as paste extrusion, also known as push.

Due to the dispersion of fine powder particle size, divided into several grades of specifications, different specifications have different compression ratio characteristics.Compression ratio of less than 100, generally used to produce raw material and microporous tape;Low compression ratio of less than 500, used to produce medium and large specification products;500 ~ 2000 is medium compression ratio.2000 ~ 4400 is high compression ratio material, this material is suitable for the production of thin wall thin line, can continuously large length and high efficiency production.

Identification method: the main difference is the particle size of the two are not the same.Suspension material is coarse, dispersion material is fine.

SUKO is attending a manufacturing expo in Bangkok

Are you still worried about semi-automatic machines on the market? Are you still anxious about the equipment for Polymer/PTFE/UHMWPE products? This is a good opportunity now!

SUKO is attending the Manufacturing Expo(ME) in Bangkok, Thailand on June19-22, 2019. ME is an event dedicated to machinery and technology for manufacturing and supporting industries, It fully reflects the level of machinery manufacturing and mechanical equipment development in Asian.

Here are some popular products we produced: Auto extrusion/bush molding machine, Auto Gasket Machine, UHMWPE Rod Extruder, PTFE Tube Extruder, etc. They are all automatic machines, which help customers improve productivity and quality. These products also have longer working life and are friendly to environment. 

The specific marketing advantages are as follows:

ü  PTFE Automatic Press Molding Machine-It is suitable for pipe and rod, it has PLC control and screen touch system. Furthermore, if PTFE powder is exhausted, it will  alarm Automatically.

ü  Auto Gasket Machine-It has advantages of environmental protection, time saving, high efficiency, long service life, good heat dissipation and good quality of accessories.

ü  UHMWPE Rod Extruder- It can extrude  3-9 million molecular weight of raw materials.

Come to this event, Here are the newest innovations and solutions by 2,400 brands from 46 countries.

Come to our booth, We have professional and technical personnel to solve your problems immediately. What’s more, plenty of advanced and complete equipment for your choice, such as PTFE AutomaticPress Molding Machine, Auto Gasket Machine, UHMWPE/PTFE Rod Extruder and so on. In addition, at the international exhibition, you can consult a wide range of topics for your needs, or compare a large amount of manufacturers to select your favorite devices.

Detailed exhibition information is as follows.

Time：June 19-22, 2019

Address：Bangkok International Trade and Exhibition Centre，

88 Bangna-Trad Road (Km.1), Bangna, Bangkok 10260, Thailand

Booth Number：3D34

We sincerely hope to establish long-term cooperation with you, we will try our best to provide high quality and excellent service, we will cherish every opportunity to cooperate with you!

Looking forward to your visit!

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Introduction to ptfe teflon pipes

Ptfe teflon tube extrusion machine is divided into many kinds, exactly say ptfe tube forming process has push and pressure method, extrusion method, hydraulic method, welding method, winding method, etc., which is mainly push and pressure method.Generally dispersed PTFE resin with particle size of 500 microns and apparent density of 0.45g/ml ~ 0.55g/ml is adopted.The small diameter tube chooses the compression quite big resin, the medium and large diameter tube chooses the compression quite small resin.Extruder usually choose 200 and 260 solvent oil.PTFE thermal shrinkage tube, PTFE spiral tube, PTFE steel wire reinforced hydraulic tube and so on can be produced by the secondary processing of PTFE tube.

1.1 common ptfe teflon pipe

Ptfe ordinary tube is made of ptfe dispersion resin at room temperature with organic solvent as extruder, and then through drying and sintering.According to the size of the pipe diameter can be divided into two types of ordinary pipe and micro pipe.Ordinary tube inner diameter > 4mm, micro tube inner diameter ≤4mm.

Typical formula for PTFE tube production:

Dispersed PTFE resin: 100 (weight)

Extruder: 18 ~ 24

Production process:

PTFE, extruder - mixing - pushing - pressing - drying - sintering - cooling - products.

Production process parameters:

Mixing: temperature ≤19 ℃, time 10min ~ 20min, mixed at 25 ℃ ~ 30 ℃ for more than 24h.

Blank: compression rate is about 50mm/ min, pressure is 0 ~ 3MPa.

Pushing pressure: the cavity temperature is 30 ℃ ~ 50 ℃, and the die temperature is 50 ℃ ~ 60 ℃.

Drying: under 210 ℃,2h ~ 3h

Sintering: batch sintering, temperature rise rate of 60 ℃/ h,375 ℃±5 ℃ insulation for 4h.

Continuous sintering, dry area 100 ℃ ~ 250 ℃, preheating area 250 ℃ ~ 330 ℃, sintering area 380 ℃ ~ 420 ℃, cooling area less than 300 ℃.

Main equipment: mixing machine, preforming machine, vertical pushing press, drying and sintering furnace.

USES: as insulation and fluid conduit.

1.2 polytetrafluoroethylene heat-shrinkable tube

PTFE thermal shrinkable tube has the property of being heat-shrinkable, so it can be tightly coated on the surface of other workpieces, making the workpieces resistant to corrosion, electrical insulation and viscosity.Widely used in electrical, chemical, mechanical, printing and other industries.The maximum shrinkage of PTFE shrink tubes is reported to be more than 75%.

It is processed by disperse PTFE resin. The principle is that PTFE is subjected to stress during processing and produces forced high-elastic deformation, which is reversible and freezes at low temperature. If the forced high-elastic deformation is reheated, it will gradually disappear and return to the original state.

Typical formula for PTFE thermal shrinkable tube production:

Disperse PTFE resin 100 (weight)

Extruder 20 ~ 22

Production process:

PTFE resin, extrusion aid → mixing → storage → pre-molding → pushing and pressing → drying → sintering → cooling → heat treatment → blowing → cooling → product.

Production process parameters:

The front part is the same as ordinary PTFE tube.

Heat treatment: the quenching process of the dried and sintered pipes after further full sintering at high temperature, the temperature is 390 ℃±2 ℃, and the coolant is -5 ℃.

Blowing: at 310 ℃ or so, fill the compressed gas below 0198MPa, the blowing rate is 200% ~ 400%.

Main equipment: blowing machine, other PTFE tube and the same.

1.3 ptfe teflon steel wire reinforced hydraulic pipe

The common PTFE pipe will break under the pressure of about 40kg/ cm2. When it is combined with steel wire, the pressure resistance will be greatly improved. The maximum working pressure abroad reaches 700kg/ cm2.The results show that the compressive strength and pulse strength of the hose are related not only to the steel wire strength but also to the weaving Angle.When the braiding Angle is 54°44 "for single-layer braiding, the steel wire does not extend under internal pressure, the length and diameter of the hose do not change, and the pressure resistance is the best.

When used as hose for hydraulic system in aviation industry, in order to prevent electrostatic breakdown of inner tube caused by hydraulic oil flow, trace conductive carbon black should be added in the manufacture of PTFE inner tube.However, it was found that adding carbon black could not completely prevent electrostatic discharge from passing through the tube wall and increase the gap.

In the 1960s, Attas manufactured composite tubes, in which the inner layer of the tubes was a uniform mixture of conductive carbon black and PTFE, and the outer layer of the tubes was pure PTFE.This form of tube body layer has axial conductivity, so it can not only eliminate static electricity, but also prevent seepage.

The process:

Inner resin (including conductive carbon black), outer resin → blank → pushing → drying → cooling → testing → weaving → fitting joints → testing.

PTFE steel wire composite hose is mainly used in aircraft hydraulic system, air conditioning system, fuel system, lubricating oil system.In civil industry, it is suitable for soft connection of hydraulic pressure, steam pressure and steam transportation in rubber, plastic, pharmacy, clothing, shipbuilding, automobile, machine tool, motor, diesel engine and paper making industries.

1.4 ptfe teflon spiral tube

PTFE spiral tube, also known as PTFE flexible hose, has not only all the excellent properties of PTFE, but also flexible properties.At present, there are two kinds of PTFE spiral tube and chemical fiber, stainless steel wire and plastic coated glass fiber woven reinforcement.

It is made of PTFE through secondary processing. The process is that PTFE thin-walled tube continuously rotates forward through a combination mold with a temperature of 270 ℃ ~ 280 ℃ at a certain speed.

It is mainly used for the inlet and outlet pipes of the shock parts such as the soft connection dislocation connection, serpentine pipes, pump engines and so on.Used for shielding cable and protecting cable sleeve of aircraft engine.