Pioneer Time award in Alibaba Xi'an cross-border electricity enterprice On January 6th ,2015, Pioneer Time award in Alibaba xi’an cross-border electricity enterprice,issue...

PTFE film SGS certificate for YAMAHA PTFE film SGS certificate for YAMAHA ...

Zhong Hao Chenguang Chemical Research Institute DuPont ...

指标名称Index Name 单位Unit 标准值Standard Values 比重 Density ...

Type #Diameter * Length ( mm ) B6 3*6 B10 5*10 ...

Q1: When should a hard hat be replaced ? A: Most manufacturers allow up to 5 years. Check with us. Q2: What are some signs that your hard hat sho...

The colors are somewhat different, PTFE white, transparent, RTFE pink,.RPTFE enhanced, and more resistant to temperature.RPTFE belongs to the enhanced processing of PTFE material, in the polymer structure and some additives content and PTFE difference.We can make an infrared spectra of pure PTFE powder or film, and then the material or product scraping a flaking do the infrared spectral analysis, ...

Answer: is the process of insulation will reach the preform sintering temperature to maintain a certain time in the temperature of the "burn". The holding time depends on the sintering temperature, the thermal stability of raw materials and the parison wall thickness and other factors, but must ensure the quality of sintering (with parison into transparent or translucent for quasi) as the premise....

Answer: because PTFE powder is easy to agglomerate, large volume, compression ratio and fibrous structure with particles, pressing and sliding transfer difficulties, under the pressure of material filled cavity, particles will not from one channel to another, but the deformation of granular particles, flattened elongated, the the deformation is in a certain range. When the particle by a axial forc...

Answer: PTFE products are generally pre cold pressed into a blank, and then sintering, sintering after the finished product can also be used in mechanical processing to make high precision parts, but also turning into sheets.

Q: what is the amount of compression for PEEK and PTFE sealing materials?I am just engaged in the design of new valve, in the ball valve, most of the sealing materials are using PEEK, PTFE and RPTFE., I would like to know how much compression when these materials can play a sealing effect?Answer: it depends on what you need. If the sealing effect of sealing section, PTFE soft, the amount of compre...

Q: PEEK, PFA, PTFE, HDPE which is the most wearable?A: certainly PEEK is the most wearable. PTFE and PEEK are self-lubricating and have abrasion resistance. But the PTFE is soft, creep resistance is poor. PEEK has good wear resistance, mechanical properties and solvent resistance is also very good, only concentrated sulfuric acid can dissolve. HDPE is the weakest.

Also called graphite modified PTFE gasket or PTFE gasket is black, adding a certain amount of filler for PTFE resin, such as glass fiber, bronze powder, MoS2, graphite, carbon fiber, molding by high speed mixing evenly, then through high heat sintering. With a color, compressibility, recovery and sealing nature. Its unique and advanced characteristics and sealing torque. In the creep characteristi...

By PTFE resin, mold pressed and sintered, with excellent corrosion resistance, self lubrication and adhesion is not good, so almost all the chemical medium resistance, with wear resistance, pressure resistance, low coefficient of friction characteristics. Widely used in petroleum, chemical, metallurgy, machinery, food, pipeline, power etc. corrosive medium pump, valve flange seal. All kinds of equ...

Is made of asbestos rubber sheet or non asbestos gaskets and Teflon coated sheet combination, type V (cutting type) PTFE envelope gasket by PTFE mechanical turning, type U (folded package type) PTFE envelope gasket by PTFE with edge heating has excellent bonding. The corrosion resistance and good compression resilience, widely used in all kinds of strong acid, strong alkali, chlorine oxidation, se...

Is made of PTFE rod, tube, flat gasket plate by mechanical turning or cutting into V, piston ring, ball shaped gasket, gasket has corrosion resistance, aging resistance and good conductive characteristics. The pH value of 0-14 PTFE (molten alkali and high temperature, under high pressure except Fluorine) which is capable of having. Good mechanical strength between -100～100℃ ，pressure 10Mpa. .Note:...

Q: what are the technical parameters of PTFE gaskets?Answer:Main technical parameters:Pressure ≤4.0MPaTemperature ≤260℃Gasket coefficient m=2.5PH 0-14Minimum preload ratio y=20MPaPTFE gasketMaterials: PTFE powder, PTFE plateService temperature: -150-250 ℃Use pressure: 6.4MpaMain application: static seal of high cleanliness mediumAvailable specifications: DN10-1600mmPTFE envelope gasket is made of ...

First, the quality is mainly reflected in the PTFE gasket thickness tolerances, PTFE sealing material is good, especially the expanded PTFE sealing effect is better, whether there are ordinary PTFE gasket regeneration cold flow material or pure raw materials, namely in the long term should be under the thickness will be changed, for a period of time to close the clamping screw so, the thickness to...

Q: The use of polytetrafluoroethylene plate is to reduce the friction between the tube holder and the axial fixing bracket. Is to reduce the friction, my first question is to ask is a piece of PTFE and tube care of the steel part of the friction or two polytetrafluoroethylene plate friction?A: There are two pieces of PTFE sheet between the slide, but also useful a piece of PTFE board, a piece of s...

Q: PTFE gasket has a weatherability, ozone resistance and chemical resistance?A: Yes. PTFE gasket high temperature resistance is better than silicone rubber, excellent weather resistance, ozone resistance and chemical resistance, cold resistance is bad. For most of the oil and solvents have the ability to resist, PTFE gasket alternatives, especially acids, aliphatic hydrocarbons and animal and veg...

Q: The same material specifications of the PTFE gasket, is it a little thin or good thick, from the pressure and sealing aspects of it.A: This depends on the cooperation with the flange, the better the quality of the flange, the pad is the thinner the better, poor quality flange, that gasket thick point, usually according to the standard can. From the pressure and the degree of closure or thick po...

Q: Our company began to install the tetrafluoride pipe without gasket, the leadership said that the surface of PTFE material is relatively smooth, do not need to add gasket, and now began to test pressure, and are basically leaked, do not know everyone What do you think? Pipeline to go to the medium is hydrogen chloride gas, the temperature of 150 degrees, diameter DN300, the pressure is now under...

Q: Does Teflon have injection grade? What about liquidity? How much is the shrinkage ratio? Where does the mold need to be heated?A: Teflon (PTFE) injection molding grade, called soluble polytetrafluoroethylene (PFA), the mold needs to be heated. Melting refers to 2-20g / 10min, shrinkage of 2-3%, mold temperature to 160-220 degrees (must be added mold temperature).

标准号Standard No.标准名称Standard Name英文名称English nameASTM D1675-03（2011）聚四氟乙烯管的试验方法Test Methods for Polytetrafluoroethylene TubingASTM D2686-06（2012)聚四氟乙烯压敏电绝缘胶带规范Specification for Polytetrafluoroethylene-backed Pressure-Sensitive Electrical Insulating TapeASTM D1710-08聚四氟乙烯(PTFE)基本型材，棒材和厚壁管材Polytetrafluoroethylene (PTFE) Basic Shapes, Rod and Heavy-Walled TubingASTM D3295-06(2011)聚四氟乙烯管Standard Specif...

PTFE is generally used in corrosive medium temperature less than 204 degrees in the low pressure valve sealing surface, can also be used for gaskets and packings.PEEK is generally used for sealing surface of high-pressure ball valve.VITON is fluorine rubber, cold flow ratio above two, the most used O ring seal.

Q: what should pay attention to selection of sealing gasket?Answer: any type of gasket used in bad environment, to ensure the effective sealing and long time, must have the following eight characteristics:1, seal gasketThe sealing system of medium gasket can not leak in the recommended temperature and pressure within a certain period of time.2, the compressibility of the gasketThe contact surface ...

The main difference: the ductility and mechanical properties. Both of them belong to the thermosetting resin, high temperature can be more than 200℃. But PTFE reached 260℃ began to decompose. Fluorine rubber depends on the specific species. Specific mechanical properties can be done tensile test.The same material, different shapes of PTFE products, physical properties and chemical properties are s...

Question:There are black spots and black stripes on PTFE gasket and can not be washed off, I would like to know the reason and affect of the quality and effectiveness in the using process ?Answer: if it is new, it may be made of recycled ptfe material, if it is used, may be there is some flange rust above the gasket. What medium is this gasket used in ? If it's not a special medium ,it will not im...

Answer:PTFE has corrosion resistance, deformation, nonconductive, but modified PTFE will become brittle in temperature under the condition of certain. Here by Shuofeng machinery together with you to understand the process characteristics of modified polytetrafluoroethylene.PTFE gasket abroad is also called PTFE (Tie Fulong) or Teflon gasket gasket by PTFE rods, tubes, flat gasket plate by mechanic...

Q: the PTFE surface has a problem, how to do? It is used mainly for the inner pipe and easy to clean wok and other places. Why PTFE surface will appear in the use of ethylene in the solving problem? What method?Answer:Reason：1, epoxy resin adhesion is too weak2, the toughness of epoxy resin is too low3, sodium naphthalene in disposition is not appropriateMethods: raw material: epoxy resinConfigura...

PTFE has corrosion resistance, deformation, nonconductive, but modified PTFE will become brittle in temperature under the condition of certain. The following TICOPTFE take you to understand the process characteristics of modified polytetrafluoroethylene.PTFE gaskets, also known as Teflon gaskets. Flat gaskets,V-shaped gaskets , Piston rings, ball valve washers, made of PTFE rods, tubes and plates ...

Teflon gasket is a v-shaped or w-shaped thin steel strip and filler PTFE composite spiral wound from a semi-metal flat gasket. By changing the gasket material combination, can solve a variety of media on the gasket chemical corrosion problems. This gasket compression rebound performance, with multi-channel seal and a certain self-tightening function, can be partially eliminate the pressure, tem...

PTFE is stable, but also should pay attention to avoid high temperature, especially to avoid contact with the fire, because of its more than 400 degrees Celsius will break down the toxic gas.

All kinds of rod, tube, plate membrane, belt, rope, packing, gasket, and graphite, MoS2, three two aluminum oxide, glass fiber, carbon fiber as filler to improve the mechanical properties of pure PTFE ethylene.

Zhandong Yang

NO. 368, DAQING ROAD, LIANHU COUNTY XI’AN CHINA

Shaanxi Tiangong PTFE & Plastic Material Co.,Ltd.

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