Method for producing steel component integrally having rubber portion

A technology for steel parts and a manufacturing method, which is applied in the field of integrated steel parts manufacturing with rubber parts, can solve the problems of reduced rust resistance and increased manufacturing costs, and achieves excellent water-resistant bonding, Effect of deterioration of rust resistance

Inactive Publication Date: 2009-03-04
NOK CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, according to this method, since the chemical treatment is canceled so that the water-resistant bonding property or the anti-rust performance in the manufacturing process is reduced, the primer treatment for improving the water-resistant bonding property must be partially coated with a water-resistant primer, resulting in Increased manufacturing costs

Method used

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  • Method for producing steel component integrally having rubber portion
  • Method for producing steel component integrally having rubber portion
  • Method for producing steel component integrally having rubber portion

Examples

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Embodiment Construction

[0030] A preferred embodiment of the method for manufacturing a steel part having a rubber portion integrally according to the present invention will be described below with reference to the drawings. first, figure 1 It is the manufacturing object of the manufacturing method of an integrated steel part with a rubber part related to the present invention, and the half side sectional view of the sealed integrated piston is cut by a plane passing through the axis center, figure 2 It is a process flow chart showing the manufacturing method of the integrated steel part which has a rubber part concerning this invention.

[0031] exist figure 1 The seal-integrated piston 2 shown in is equivalent to the integrated steel part with rubber part described in the present invention, and has the same image 3 The same structure as shown in , that is to say, consists of a piston body 21 manufactured by steel sheet stamping / press forming, etc., and a sealing lip 22 integrally sintered and ...

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Abstract

To provide a method for producing a steel component integrally having a rubber portion without necessity to remove by a lathe turning a film formed on the surface of a steel component by a chemical conversion treatment and without deterioration of water-resistant adhesive property and anti-corrosion property during production steps due to omission of the chemical conversion treatment, the method for producing a steel component integrally having a rubber portion includes the steps of subjecting a surface of a steel component to a chemical conversion treatment with iron phosphate as a ground treatment (step S3), partially coating an adhesive on a portion to which a rubber portion is to be bonded (step S4), and bonding the rubber portion via baking to the steel component (step S5).

Description

technical field [0001] The present invention relates to a method of manufacturing a steel part integrally provided with a rubber part, such as a seal-integrated piston used in a hydraulic clutch of an automatic transmission of a vehicle. Background technique [0002] In a hydraulically actuated clutch for an automatic transmission of a vehicle, a steel member integrally provided with a rubber part, such as a seal-integrated piston integrally provided with a seal member made of a rubber-like elastic material, or a seal-integrated compensator, is used. [0003] image 3 It is a schematic structure of such a hydraulically operated clutch, a half side sectional view cut on a plane passing through the axis O of the drive shaft. here image 3 Among them, reference numeral 1 is an annular clutch oil cylinder (silinda) that rotates together with the drive shaft not shown in the figure, and 2 is arranged in the clutch oil cylinder 1 to be able to move in the axial direction, and betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/62B29C65/40B29K21/00B29K705/12B29L31/26F16D25/12F16J15/3252F16J15/328
CPCB29L2031/7494F16D25/0638C09J5/02B29C65/483F16D2048/0212C09J2205/306B29C66/54B29K2305/12B29C65/524B29K2021/00C09J2461/00B29C65/48F16J15/328F16J1/008B29C66/742C09J2301/504B29C65/00
Inventor 西村智昭勘崎芳行
Owner NOK CORP
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