Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for reducing deformation rate of piston ring during quenching

A technology of piston ring and deformation rate, which is applied in the direction of furnace, furnace type, heat treatment equipment, etc., can solve the problems of reducing piston ring deformation rate, low qualified rate of piston ring, easy deformation, etc., to reduce deformation amount and facilitate aging treatment Effect

Active Publication Date: 2021-12-10
安庆海威尔机械有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The single-piece piston ring is easily deformed during quenching, resulting in a low pass rate of the quenched piston ring, so it is necessary to provide a method to reduce the deformation rate of the piston ring during quenching

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
  • A method for reducing deformation rate of piston ring during quenching
  • A method for reducing deformation rate of piston ring during quenching
  • A method for reducing deformation rate of piston ring during quenching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to make the objects and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with examples. It should be understood that the following words are only used to describe one or several specific implementation modes of the present invention, and do not strictly limit the protection scope of the specific claims of the present invention.

[0023] The piston ring is one of the key parts of the internal combustion engine, which plays the role of maintaining sealing and heat conduction, and the harsh working environment of the piston ring requires a certain strength. Therefore, the piston ring needs to be heat treated to improve its performance, and to ensure the accuracy of the end face of the piston ring. When a single piston ring is heat-treated, it is easy to warp because the thickness of the piston ring is small, so the present invention uses multiple piston rings to be stacked together for heat trea...

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 relates to a method for reducing the deformation rate of a piston ring during quenching, and is used to solve the problem that the piston ring is easily deformed during quenching. In this method, the piston rings are first placed on the monolithic unit for monolithic so that the center of each piston ring is located on the same center line, and then the clamping unit is used to clamp each piston ring so that each piston ring is closely attached to each other. Then bind each piston ring with iron wire, loosen the clamping unit, take off the bound piston ring from the monolithic unit and send it to the heating furnace for heat treatment, after heat treatment, put it into the quenching liquid quenching treatment. This method can well reduce the deformation of the piston ring during quenching and improve the qualified rate of the piston ring.

Description

technical field [0001] The invention relates to the field of piston ring processing equipment, in particular to a method for reducing the deformation rate of piston rings during quenching. Background technique [0002] Piston rings need to be quenched in the process of processing to improve their strength. Quenching treatment is to put the piston rings in a quenching furnace for quenching, and then put them in a quenching liquid for cold treatment. Since the piston ring is composed of annular pieces with a small thickness, it is easy to deform during quenching treatment. However, the piston ring not only needs to ensure that the warpage of its end face is in a small range, but also the parallelism of the upper and lower end faces must be in a small range. . The single-piece piston ring is easily deformed during quenching, resulting in a low pass rate of the quenched piston ring. Therefore, it is necessary to provide a method for reducing the deformation rate of the piston r...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/40C21D1/18
CPCC21D9/40C21D1/18
Inventor 朱子麟朱云成赵文飞
Owner 安庆海威尔机械有限公司