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Manufacturing technology of air spring rubber stack

A manufacturing process, air spring technology, applied in springs, spring/shock absorbers, gas shock absorbers, etc., can solve problems such as poor bonding of rubber piles, achieve good cleaning effect, improve adhesion, and improve surface roughness degree of effect

Active Publication Date: 2011-04-20
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problem of poor bonding of the rubber pile in the existing air spring, and proposes an improved manufacturing process of the rubber pile for the air spring

Method used

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  • Manufacturing technology of air spring rubber stack
  • Manufacturing technology of air spring rubber stack

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specific Embodiment approach

[0023] The specific embodiment of the present invention is as follows: a kind of manufacturing process of air spring rubber pile, comprises the treatment process of metal parts, the preparation process of rubber material and vulcanization process,

[0024] 1. The processing steps of metal parts are as follows:

[0025] (1) Pre-cleaning process: The pre-cleaning process uses MJ line equipment, which is composed of three parts: alkali washing one, alkali washing two, and water washing. The first stage of alkali washing is 7-12 minutes at 30-40 °C; The stage is 5-7 minutes at 30-40°C; the washing stage is 3-5 minutes;

[0026] (2) Shot blasting process: the shot blasting frequency of the partition part is set to 38-42Hz, the time is 22-30 minutes, and the current is 6-10A; the shot blasting frequency of the mandrel part is set to 38-42Hz, and the time is 20 -25 minutes, the current is 6-10A; the shot blasting frequency of the coat part is set to 38-42Hz, the time is 6-10 minutes...

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Abstract

The invention relates to a manufacturing technology of an air spring rubber stack, which comprises the pretreatment technology of a metal piece, the preparation technology of rubber material and the vulcanization technology. In the pretreatment technology of the metal piece, the pre-cleaning process step is added, so that grease on the surface of the metal piece can be removed better; the shot blasting process step can ensure better surface roughness of the metal piece, and can simultaneously improve the bonding force between an adhesive and a framework and the strength of a metal framework; the ultrasonic washing can further remove the grease on the surface of the metal framework and dust taken in during the shot blasting process, raise the temperature of ultrasonic washing liquor and prolong cleaning time appropriately, and further reach the better cleaning effect. The selection of parameters of the vulcanization technology can directly affect the matching between the adhesive and the rubber reaction speed and the formation of a cross bond between rubber and the adhesive, and products with good adhesive bonding effect can be obtained through the parameters selected by the invention.

Description

technical field [0001] The invention relates to a manufacturing process of a rubber stack, in particular to a manufacturing process of an air spring rubber stack for a railway vehicle. Background technique [0002] An air spring is a non-metallic spring that fills a flexible rubber bladder with compressed air and utilizes the compressibility of the air to achieve elastic action. The air spring should have good torsional performance and large horizontal displacement reliability. In the manufacturing process of the air spring, the production of the rubber stack is particularly important. The existing rubber stack manufacturing process has certain defects, resulting in the presence of metal exposed on the surface of the mandrel and the separator, the primer, the top coat, and the adhesive. Disengagement from the rubber, etc., resulting in poor bonding of the rubber stack, which seriously affects the quality of the air spring. Contents of the invention [0003] The invention...

Claims

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Application Information

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IPC IPC(8): F16F9/04F16F9/32
Inventor 王付胜袁博
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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