Method for automatically forming polytetrafluoroethylene tube and equipment
A technology of polytetrafluoroethylene pipe material and polytetrafluoroethylene, which is applied in the direction of tubular objects, other household utensils, household utensils, etc., can solve the problems of low material utilization rate, poor dimensional stability, long holding time, etc., and achieve improvement The effect of improving material utilization, improving operational safety, and accelerating internal stress transfer
Active Publication Date: 2015-04-29
DONGGUAN CLIMAX SEAL TECH
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Problems solved by technology
PTFE has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stickiness, electrical insulation and good anti-aging endurance, and is known as the "king of plastics"; but there are also many shortcomings: The shortcomings of large linear expansion factor, poor dimensional stability, poor wear resistance, poor thermal conductivity, low hardness and "cold flow" phenomenon under large loads limit its application.
In this way, there is a long pressure holding time for high-pressure products and low efficiency.
Suppression of short products, low material utilization
Method used
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[0024] see figure 1 , a kind of polytetrafluoroethylene tubing automatic forming method that the present embodiment provides, it comprises the following steps:
[0025] 1) A pressing mechanism for providing pressure is provided, the pressing mechanism includes pressure devices and pressing rods 2 connected to each other; a polytetrafluoroethylene pipe material forming mechanism is provided, and the forming mechanism includes a forming mold, a forming pressure ring and a forming pressure cylinder, The molding die includes a molding inner mold 3 and a molding outer mold 4 that are adapted to each other, and a pressing cavity corresponding to the polytetrafluoroethylene pipe material is formed between the molding crush, the molding inner mold and the molding outer mold, The forming press cylinder corresponds to the forming crush and is connected with the pressing mechanism; a forming inner mold moving mechanism is set to drive the forming inner mold to move; a forming outer mold ...
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The invention discloses a method for automatically forming a polytetrafluoroethylene tube. The method comprises the following steps: (1) setting a pressing mechanism for providing pressure, a polytetrafluoroethylene tube forming mechanism, an inner forming mould moving mechanism, an outer forming mould moving mechanism and a control device for coordinating a pressing process, wherein the forming mechanism comprises a forming mould, and the forming mould comprises an inner forming mould and an outer forming mould matched with each other; (2) adjusting the mechanisms and adding a polytetrafluoroethylene material into a pressing cavity; (3) pressing the polytetrafluoroethylene material in the cavity by the pressing mechanism, and maintaining pressure after reaching a preset pressure; (4) driving the inner forming mould to move by the inner forming mould moving mechanism, driving the outer forming mould to move by the outer forming mould moving mechanism, enabling the inner forming mould and the outer forming mould to reciprocate according to a preset mode, and accelerating internal stress transfer; (5) after forming the polytetrafluoroethylene tube, taking out a polytetrafluoroethylene tube product. The invention further discloses automatic forming equipment for implementing the method.
Description
technical field [0001] The invention relates to a polytetrafluoroethylene pipe material forming technology, in particular to a polytetrafluoroethylene pipe material automatic forming method and equipment thereof. Background technique [0002] With the development of modern science and technology, in order to solve the lubrication problems of machinery under special working conditions such as high load, high vacuum, high and low temperature, and strong corrosion, solid lubricating materials have developed from a single micropowder, adhesive film, or unitary material. Composite materials composed of various materials. PTFE has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stickiness, electrical insulation and good anti-aging endurance, and is known as the "king of plastics"; but there are also many shortcomings: The shortcomings of large linear expansion factor, poor dimensional stability, poor wear resistance, poor thermal conductivity...
Claims
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IPC IPC(8): B29D23/00B29K27/18
Inventor 周完成周安梁军
Owner DONGGUAN CLIMAX SEAL TECH