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Tech, for producing sebific duct of silicon rubber and special mould core thereof

A production process and technology of silicone rubber, applied in the production process of new silicone rubber hose and its special mold core field, can solve the problems of easy extrusion and fracture of reinforcement layer and difficult demoulding, and achieve smooth inner wall, high adhesion strength and neat arrangement. orderly effect

Inactive Publication Date: 2006-06-28
刘建平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a new type of silicone rubber hose production process and its special mold core, which not only solves the problem that the reinforcing layer is easy to be squeezed and broken and difficult to demould in the production of silicone rubber hose in the prior art, but also produces Product quality is good, no burr, burr

Method used

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  • Tech, for producing sebific duct of silicon rubber and special mould core thereof
  • Tech, for producing sebific duct of silicon rubber and special mould core thereof
  • Tech, for producing sebific duct of silicon rubber and special mould core thereof

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Embodiment Construction

[0022] The embodiment of the present invention is characterized in that the process steps are as follows:

[0023] a. directly forming the rubber hose blank on the surface of the capsule 7 compatible with the inner diameter of the rubber hose 11;

[0024] b. put the formed rubber tube blank 9 together with the capsule into the cavity of the mold 10;

[0025] c. Close the mold, inject internal pressure into the capsule, and vulcanize;

[0026] d. After the vulcanization is completed, release the pressure, pull out the capsule, and obtain the rubber hose.

[0027] Since the rubber hose has certain shrinkage during the preparation process, the outer diameter of the capsule should be slightly smaller than the inner diameter of the rubber hose.

[0028] The end of the capsule in step a is provided with an internal pressure connecting pipe 8. During specific implementation, the internal pressure connecting pipe can be set on the end of the capsule before or after forming the rubbe...

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Abstract

A technology for preparing silicon rubber pipe includes such steps as directly forming the rubber pipe blank on the surface of a rubber bag suitable for the internal diameter of rubber pipe, putting them in the cavity of mould, closing the mould, applying pressure to internal space of rubber bag, sulfurizing, releasing internal pressure, and removing said rubber bag. Said rubber bag is just its dedicated moulding core.

Description

technical field [0001] The invention relates to a production process of a novel silicone rubber hose and a special mold core thereof. Background technique [0002] The existing production process of silicone rubber hose mainly adopts preforming of hard core (such as iron core, aluminum core, etc.) or directly discharges material (silicone rubber) in the mold cavity, and then pressurizes the mold to make the silicone rubber Fill the cavity for vulcanization. This production process has the following fatal defects in the production of rubber hoses: First, when manufacturing corrugated hoses, the core must have corrugated protrusions consistent with the mold cavity, so there is a problem of difficult demoulding in the later stage of production. It is easy to demould, so that the core is connected by several core segments (such as figure 1 shown), but due to the seams at the joints of the core segments, there are burrs and burrs on the inner wall of the produced product (such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D23/00B29C33/76B29C35/02
Inventor 刘建平
Owner 刘建平
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