Method for manufacturing cold-drawing formed sealing pad

A manufacturing method and technology for sealing gaskets, applied in the manufacturing field, can solve the problems of reduced work efficiency, poor dimensional stability, low consistency, etc., and achieve the effects of improved part qualification rate, good deformation consistency, and good dimensional consistency.

Active Publication Date: 2014-03-05
AVIC STANDARD PARTS MFG
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the heat treatment and softening treatment, the plasticity of the parts is improved, and plastic deformation and permanent deformation occur under pressure. scrap parts
After modifying the mold, the size of the interface will be partially oversized after several trial productions
In addition, if the length of the part is very long, when the traditional stamping method is used for processing, the designed mold length is very long and must match the part, which will increase a lot of difficulties in the mold manufacturing process and increase the cost
Therefore, using this process to process sealing gaskets has poor dimensional stability and low consistency, resulting in too many waste products, reduced work efficiency, and increased costs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for manufacturing cold-drawing formed sealing pad
  • Method for manufacturing cold-drawing formed sealing pad

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for manufacturing a cold-drawn sealing gasket, comprising the following steps:

[0020] Step 1, making strips: Curl one end of the steel strip 1, cut the braided rope 2 according to the length of the steel strip 1 and put it into the curled steel strip to wrap tightly;

[0021] Step 2, fixing the drawing die: fixing the drawing die on the lathe;

[0022] Step 3, drawing die forming: the strip material is in contact with the drawing die part, and the strip material and the center line of the drawing die form an angle of 7°, and then the lathe adopts the automatic cutting method to make the strip material pass through the drawing die at a uniform speed to make parts;

[0023] Step 4, straightening: machining the straightening parts by clamping.

[0024]

Embodiment 2

[0026] A method for manufacturing a cold-drawn sealing gasket, comprising the following steps:

[0027] Step 1, making strips: Curl one end of the steel strip 1, cut the braided rope 2 according to the length of the steel strip 1 and put it into the curled steel strip to wrap tightly;

[0028] Step 2, fixing the drawing die: fixing the drawing die on the lathe;

[0029] Step 3, drawing die forming: the strip material is in contact with the drawing die part, and the strip material and the center line of the drawing die form an angle of 10°, and then the lathe adopts the automatic cutting method, so that the strip material passes through the drawing die at a uniform speed, and the strip material is first drawn The cross-section is circular, and then the strip is drawn into parts of the desired shape;

[0030] Step 4, straightening: machining the straightening parts by clamping.

[0031]

Embodiment 3

[0033] A method for manufacturing a cold-drawn sealing gasket, comprising the following steps:

[0034] Step 1, making strips: Curl one end of the steel strip 1, cut the braided rope 2 according to the length of the steel strip 1 and put it into the curled steel strip to wrap tightly;

[0035] Step 2, fixing the drawing die: fixing the drawing die on the lathe;

[0036] Step 3, drawing die forming: the strip material is in contact with the drawing die part, and the strip material and the center line of the drawing die form an angle of 15°, and then the lathe adopts the automatic cutting method, so that the strip material passes through the drawing die at a uniform speed, and the strip material is first drawn The cross-section is circular, and then the strip is drawn into parts of the desired shape;

[0037] Step 4, straightening: machining the straightening parts by clamping.

[0038] In addition, the shape of the die is simple, and different shapes of the die can be made ac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for manufacturing a cold-drawing formed sealing pad. The method comprises the following steps that firstly, a strip is manufactured, wherein one end of a steel belt (1) is coiled, and a braided rope (2) is cut off according to the length of the steel belt (1) and placed in the coiled steel belt to be wrapped tightly; secondly, a drawing die is fixed to a lathe; thirdly, drawing die formation is carried out, wherein the strip partially makes contact with the drawing die, the included angle of 7-15 degrees is formed between the strip and the center line of the drawing die, and then a part is drawn and manufactured in the drawing die of the lathe; fourthly, the part is straightened. In the step of drawing die formation, the lathe is in a self-acting feed mode, the strip can pass through the drawing die at a constant speed, the cross section of the strip is firstly drawn to be circular, and then the strip is drawn to be the part in a needed shape. Parts machined according to the method are good in size consistency, the oversize phenomenon barely occurs, and the qualified rate of the parts is high.

Description

Technical field [0001] The invention is a manufacturing technology field, which is specifically involved in a cold -drawn forming method. Background technique [0002] The sealing pad is a small part on the engine. The sealing pad has very important uses on the engine and requires a very good sealing properties at high temperature.In existing technologies, the sealing pad manufacturing process is processed by stamping. The mold is designed according to the length and shape of the parts to fix the mold on the punching bed. The startup device will instantly put a lot of pressure on the parts, and the parts are formed in the mold.From the perspective of mechanical analysis, when the parts are stamped, the supporting effects of mold flushing and woven rope support effects.Due to the softening treatment of heat treatment, the plasticity of the parts is improved, and plastic deformation and permanent deformation under the action of pressure. At the same time, the tension of preventing ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B23P23/02B21C23/22
CPCB23P15/00
Inventor 穆颖琦成吉民尹军
Owner AVIC STANDARD PARTS MFG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap