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Rubber lantern ring produced by micro wave curing process

A microwave vulcanization and rubber technology, applied in the field of rubber products, can solve the problems of low production efficiency of spacer rings and complex production links, and achieve the effects of shortening vulcanization time, weakening the effect of export expansion and improving production efficiency

Inactive Publication Date: 2011-05-11
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low production efficiency and complex production links of traditional rubber spacer rings, introduce microwave vulcanization process into the production process of rubber spacer rings, and improve production efficiency; in addition, the product density is improved by controlling the process parameters of the production process degree and degree of deformation

Method used

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  • Rubber lantern ring produced by micro wave curing process
  • Rubber lantern ring produced by micro wave curing process

Examples

Experimental program
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Effect test

Embodiment 1

[0025] To produce a spacer whose size is: inner diameter×outer diameter×length (36±0.5)mm×(46±0.5)mm×(2000±20)mm, the specific steps and process parameters are as follows:

[0026] 1. Extrusion of semi-finished products: the compounded rubber is extruded through the extruder, and the temperature of the extruder is set as follows: the temperature of the head is 60°C, the temperature of the extrusion section is 55°C, the temperature of the plasticizing section is 45°C, and the temperature of the feeding section is The temperature was 45°C.

[0027] 2. Microwave vulcanization: There are 5 microwave sections in the microwave device. The first 2 microwave sections are closed, and the 3 microwave sections are opened. The microwave power of each section is set to 1000W, that is, the total power is 3000W, and the temperature of the microwave section is set to 150°C. . The temperature of the heating section is set to 170°C, 190°C and 210°C respectively from front to back.

[0028] 3 ...

Embodiment 2

[0031] To produce a spacer whose size is: inner diameter × outer diameter × length (15±0.5)mm×(26±0.5)mm×(2000±20)mm, the specific steps and process parameters are as follows:

[0032] 1. Extrusion of semi-finished products: the compounded rubber is extruded through the extruder, and the temperature of the extruder is set as follows: the temperature of the head is 70°C, the temperature of the extrusion section is 65°C, the temperature of the plasticizing section is 40°C, and the temperature of the feeding section is The temperature is 40°C.

[0033] 2. Microwave vulcanization: The microwave device has 6 microwave sections in total, 3 microwave sections before the microwave device is turned off, and 3 microwave sections after it is turned on. The microwave power of each section is set to 1500W, that is, the total power is 4500W, and the temperature of the microwave section is set to 150°C. The temperature of the heating section is set to 180°C, 200°C, and 220°C from front to b...

Embodiment 3

[0037] To produce a spacer whose size is: inner diameter×outer diameter×length (25±0.5)mm×(45±0.5)mm×(2000±20)mm, the specific steps and process parameters are as follows:

[0038] 1. Extrusion of semi-finished products: the compounded rubber is extruded through the extruder, and the temperature of the extruder is set as follows: the temperature of the head is 80°C, the temperature of the extrusion section is 75°C, the temperature of the plasticizing section is 35°C, and the temperature of the feeding section The temperature is 35°C.

[0039] 2. Microwave vulcanization: The microwave device has 5 microwave sections in total, 2 microwave sections before the microwave device is turned off, and 3 microwave sections after it is turned on. The microwave power of each section is set to 2000W, that is, the total power is 6000W, and the temperature of the microwave section is set to 150°C. The temperature of the heating section is set to 190°C, 210°C, and 230°C from front to back.

...

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Abstract

The invention relates to a rubber lantern ring produced by a micro wave curing process. The process comprises the following steps of: extruding mixing rubber by an extruder, wherein the temperature setting of the extruder is that: the temperature of an extruder head is between 60 and 80 DEG C, the temperature of an extruding section is between 55 and 75 DEG C, and the temperature of a plasticizing section and a feeding section is less than 45 DEG C; introducing the extruded semi-finished product into micro wave curing equipment directly for curing, wherein the micro wave curing equipment has five micro wave bands, namely two micro wave bands before closing a micro wave device and 3 micro wave bands after opening the micro wave device, the total power of micro waves is kept between 3,000 and 6,000 W, the temperature of the micro wave bands is set to be 150 DEG C, and the temperature of a heating band is set to be between 170 and 190 DEG C, 190 and 210 DEG C and 210 and 230 DEG C respectively from front to back; and after cooling, cutting according to the size requirement of the product. The inside and outside of the product are heated simultaneously under the action of the micro waves and reach preset curing temperature quickly, so the curing efficiency is improved greatly. In addition, micro wave curing belongs to a continuous curing process, so links of placing, core rod sleeving, stripping cleaning and the like can be saved in the production process.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to a rubber spacer ring produced by a microwave vulcanization process. Background technique [0002] At present, the spacer rings used in the auto parts industry are usually vulcanized in a steam vulcanization tank. This vulcanization method requires a long production cycle: first, the rubber material needs to be parked for a long time after being normally extruded ( Usually 4-6 hours) before vulcanization; Secondly, because rubber is a poor conductor of heat, it takes a long time for the inside of the rubber to rise from normal temperature to vulcanization temperature during vulcanization, so the general vulcanization time is longer (usually 20-30 minute). In addition, the traditional spacer ring vulcanization method requires more complicated preparations: such as mandrel sleeve, core removal, cleaning and other links. These aspects have seriously affected the production ...

Claims

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Application Information

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IPC IPC(8): C08L21/00C08J3/28C08J3/24B29C35/08
Inventor 张洪起郭翼
Owner TIANJIN PENGYI GRP CO LTD
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