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Method for producing fluoroelastomer rolling board

A production method and technology of fluororubber, applied in the production field of seamless fluororubber coils, can solve problems such as color difference of fluororubber sheets, easy seams at splicing places, affecting use, etc., to achieve uniform thickness, strong applicability, high quality effect

Inactive Publication Date: 2010-09-22
扬中市橡胶塑料厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing method, when the fluororubber sheets are spliced, seams are likely to exist at the splicing place, and the fluororubber sheets formed by splicing will cause color difference, which will affect its use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In this example, according to the method of the present invention, a fluororubber coil is produced with a specific fluororubber compound formula.

[0016] The fluororubber compound formula is as follows, wherein the parts of each component refer to parts by weight:

[0017] Viton 2641 (molecular weight 20,000) 85 parts Viton 2641 (molecular weight 100,000) 15 parts

[0018] Spray carbon black 10~12 parts ZnO 12~15 parts

[0019] AF 3~4 parts CaF 2 15-18 servings

[0020] Ca(OH) 2 23~5 parts BPP 2~3 parts

[0021] Diatomaceous earth 10-12 parts Iron oxide red 3-5 parts

[0022] The production process of fluorine rubber coil is as follows:

[0023] 1. Molding

[0024] Adopt 16 o'clock common open mill to carry out plasticizing. Plasticize fluororubber raw rubber (fluororubber 2641 (20,000) 85 parts / fluororubber 2641 (100,000) 15 parts) for 10-15 minutes, take samples for plasticity test, until the plasticity meets the process requirements.

[0025] 2. Mix...

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PUM

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Abstract

The present invention discloses a manufacturing method of a fluorubber roll plate comprising steps of plasticating, milling, calendaring to yield films and sulfurizing. The invention is characterized in that the fluorubber films are jointed to be pre-molded before the step of sulfuration. Under low-temperature and low-pressure and with no sulfidation, the fluorubber films of the invention method is jointed and then is sulfurized and formed into once piece under high-temperature and high-pressure continuously. Pre-molding temperature is carried out at a temperature of 40 DEG C to 60 DEG C witha pressure of 1 MPa to 2 MPa. Sulfuration temperature is carried out at a temperature of 170 DEG C to 180 DEG C with a pressure of 15 MPa to 20 MPa for 10 to 20 minutes. The method of the invention can overcome shortcomings of poor seam and chromatic aberration in connection of the fluorubber plates with once sulfuration molding other than twice sulfuration moldings. According to the method of the invention, the fluorubber roll plate produced has high degree of surface finish, even thickness, no seam, no chromatic aberration, high quality and strong applicability.

Description

technical field [0001] The invention relates to a production method of a fluororubber coil, in particular to a production method of a seamless fluorine rubber coil. Background technique [0002] Due to the excellent chemical stability of fluorine rubber products, it can resist the corrosion of various acids, alkalis and chemicals, resist ozone and various oxidants, resist radiation, and have superior high temperature and low temperature resistance (-80-260 ° C) performance Therefore, it is widely used in defense industry (nuclear industry), aerospace, petrochemical and machinery manufacturing and other fields. [0003] Fluorine rubber coil is a special product in fluorine rubber products, mainly to solve a major problem in the use of fluorine rubber, that is, the technical problem of the connection of fluorine rubber sheets, to form a large area of ​​fluorine rubber materials, and further expand the use of fluorine rubber products . The length of the currently produced flu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C43/24B29C43/32B29C43/58B29C35/02C08L27/12C08K3/34C08K3/00B29L7/00
Inventor 魏群
Owner 扬中市橡胶塑料厂有限公司
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