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Manufacturing method and manufacturing apparatus for silicone rubber molded body

A manufacturing method and a manufacturing device technology, applied in the field of manufacturing silicone rubber moldings, capable of solving unsolvable problems

Inactive Publication Date: 2018-09-14
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Therefore, even if a silicone rubber molded article in which surface contamination is prevented by the technique disclosed in Patent Document 1 is used, the above reported problems cannot be solved.

Method used

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  • Manufacturing method and manufacturing apparatus for silicone rubber molded body
  • Manufacturing method and manufacturing apparatus for silicone rubber molded body
  • Manufacturing method and manufacturing apparatus for silicone rubber molded body

Examples

Experimental program
Comparison scheme
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Embodiment

[0197] Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to this. In addition, "part" or "%" used in an Example means "part by mass" or "% by mass" unless otherwise specified.

[0198] First, the preparation of the precursor of the silicone rubber molding is prepared. Next, the treatment of Examples 1 to 8 and Comparative Example 1 as a step of heating was performed on the precursor of the silicone rubber molded body. Regarding the specific processing of Examples 1 to 8 and Comparative Example 1, that is, whether to introduce and discharge ambient gas from the outside ("whether or not to introduce and discharge" in Table 1), the speed of introducing and discharging ambient gas (Table 1 "Introduction and discharge speed"), the type of ambient gas introduced, the type of gas, and the moisture content ("gas type" and "moisture content" in Table 1), the sum of the volume V of the precursor of the silicone rubber...

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Abstract

A manufacturing method for a silicone rubber molded body that is to be used in an electrophotographic image forming apparatus includes a heating process of a precursor of a silicone rubber molded body. The heating process includes heating the precursor of a silicone rubber molded body and externally introducing an environmental gas and discharging the environmental gas to outside, to reduce an amount of a low molecular weight compound remaining in the precursor of a silicone rubber molded body.

Description

technical field [0001] The present invention relates to a method for producing a silicone rubber molded body and a production device thereof. More specifically, the present invention relates to a method for producing a silicone rubber molded article capable of reducing the amount of low-molecular-weight compounds remaining in silicone rubber and reducing the amount of low-molecular-weight compounds that volatilize when used as a product. Background technique [0002] In an electrophotographic image forming apparatus (hereinafter, also referred to as “image forming apparatus”), a silicone rubber molded body has been widely used as a fixing roller. [0003] Conventionally, in the manufacture of such silicone rubber moldings, when curing the precursor of the silicone rubber on the surface, if there is dust, dust, etc. in a furnace such as a heating chamber, the dust, dust, etc. will be removed before the precursor of the silicone rubber is cured. The problem of quality deterio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/02B29C35/00G03G15/20
CPCB29C35/002B29C35/02G03G15/2017B29C2791/005G03G15/2057B29C71/02G03G15/2014B29L2031/767B29K2683/00
Inventor 松本好康安川裕之小贺浩史
Owner KONICA MINOLTA INC
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