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目前显示的是 六月, 2019的博文

Detailed Explanation of Material Characteristics of PTFE Plate

Polytetrafluoroethylene sheet is made of 100% pure polytetrafluoroethylene by moulding, turning, cutting and other processes.

Among the known plastics, it has the best chemical corrosion resistance, no aging, electrical insulation, and very low friction coefficient. It can be used at - 180 ~ + 260 degrees without load.

Characteristic, high temperature resistance - working temperature up to 250 C.

Polytetrafluoroethylene (PTFE) sheet has good mechanical toughness and low temperature resistance, and can maintain 5% elongation even when the temperature drops to - 196 (?)

Polytetrafluoroethylene (PTFE) sheets are corrosion resistant - inert to most chemicals and solvents, strong acid and alkali, water and various organic solvents.

Polytetrafluoroethylene (PTFE) boards are climate-resistant and have the best aging life of plastics. High lubrication - the lowest coefficient of friction in solid materials.

Non-adherence - is the smallest surface tension in solid materials. It does not adhere…

The application of tetrafluoro rods in various directions

Tetrafluoro rods are used as anticorrosive materials:

Polytetrafluoroethylene (PTFE) rod materials overcome the shortcomings of corrosion resistance of plastics and metals, and have become the primary corrosion-resistant materials for petroleum, chemical and textile industries. For example, it is used to make transport pipes, exhaust pipes, steam pipes and so on for transporting corrosive gases.

Tetrafluoro rods are used as oil-free smooth materials.

The friction coefficient of PTFE rod is the lowest, so it is the ideal material for oil-free smooth mechanical equipment parts. For example, paper-making, food, textile and other areas of smoothing oil is easy to make products contaminated, PTFE rods to solve this problem.

Tetrafluoro rods are used as advanced dielectric materials for electronic equipment.

The inherent low loss and dielectric constant of PTFE rod make it an insulating material for wires and cables. Its porous structure can minimize loss and distortion, and has thermal stab…

Process flow analysis of PTFE plate gasket

PTFE gaskets or Teflon gaskets of PTFE plates are flat gaskets, V-shaped gaskets, piston rings and ball valve gaskets made of PTFE rods, pipes and plates by mechanical turning or cutting, which have outstanding characteristics of corrosion resistance, aging resistance and non-conductivity.

Polytetrafluoroethylene gasket is a kind of clean and sealed commodity. It does not pollute any substances it touches. It can be widely used in food, medicine and other occupations.

1) Preparation of raw materials for PTFE gaskets: ingredients: pure F4 finished products, material F4 fine resin, mashing, sieving;

2) The preparation of PTFE gasket mould for PTFE board: clean with alcohol, no rust and no attachment in the die;

3) Weighing, according to the formula G = PV (where G is the feeding quantity, P is the density of the pre-finished product (2.18g/cm3), V is the volume of the finished product), weighing the component;

4) Polytetrafluoroethylene gasket feeding for PTFE board: the F4 resin is even…

Ten techniques for optimizing injection moulding process:

(1) The temperature of plastics should be controlled within the recommended range of material suppliers.

(2) Filling speed is as fast as possible, with fewer segments:
A Separate filling and feeding;
B At the end of filling, only 95-99% of the product was filled.
C In order to reduce the molecular orientation of plastics, the filling rate can be slowed down appropriately.
D Filling stage to ensure adequate pressure.
E Record and keep the filling time consistent.

(3) Switching the filling position to the feeding position at the end of filling;

(4) Pressure and time control for feeding;

(5) Pressure retention should be ensured to last until gate closure

(6) Controlling cooling rate and time:
A Ensure turbulence in the cooling pipe;
B Control the inlet and outlet temperature of cooling water;

(7) No automatic control technology is used;

(8) The plasticizing process is as slow as possible without increasing the cycle.

(9) Back pressure should not be segmented;

(10) If the material propert…

The difference between PE sheet and HDPE sheet

PE sheethas the characteristics of high toughness, good tensile and wear resistance. It is widely used in chemical industry, clothing, packaging, food and other fields. It can be filled, flame retardant, modified, embossed and ground.

HDPE sheet (low pressure and high density polyethylene) has higher rigidity, higher mechanical strength and higher melting point. Suitable for hollow products, injection products, etc., widely used in the manufacture of ice hockey wallboard. Thickness: 1-150 mm color: natural color, white, blue, yellow, grey, black, green and so on.

PE sheet has excellent resistance to most domestic and industrial chemicals. Certain types of chemicals can cause chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer does not absorb moisture and has good water vapor resistance, and can be used for packaging purposes. HDPE sheet has good electrical properties, e…

Ultra High Molecular Weight Polyethylene (UHMWE) Sheet Supplier

It mainly produces Uhmw sheet rods, port fender panel, various wear-resistant parts of port machinery, coal bunker lining board, chute lining board, suction box panel, machine wear-resistant block, conveyor mechanical track and lining board, carriage lining, garage backing anti-collision board, leg cushion board for crane, outboard support seat, bearings and various parts. Vhmw sheet, rod, and similar parts, high density extrusion board.

The standard sizes of sheets are as follows:

3000X1500X (10-300) MM, 3000X3000X (10-260) MM, 4700X1200X (10-300) MM, 5000X1300X (10-300) MM, 4500X2000X (10-300) MM-2000X1000X (10-300) MM, 3050X1220X (6-100) MM .

non-standard products can be calibrated.