Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of rolling piston for refrigeration compressor and its manufacturing method

A refrigeration compressor, rolling piston technology, applied in rotary piston/swing piston pump components, machines/engines, rotary piston pumps, etc., can solve the problems affecting the health of operators, complex manufacturing process and poor working environment and other problems, to achieve the effect of good processability, cost saving and low friction resistance

Active Publication Date: 2018-06-12
NINGBO YONGWEI GROUP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rolling pistons are generally manufactured by die casting or continuous casting tubular methods. The tube body is cast first, then the material is cut, and then the inner hole, outer circle turning, peeling and grinding are carried out. Therefore, the cast tube body needs to leave more The amount, the utilization rate of piston material is only about 60%, the manufacturing process is complicated, and the manufacturing cost is high; also because the rolling piston is manufactured by casting method, a large amount of "three wastes" will be generated in the casting process, which seriously affects the environment and causes pollution, and the working environment is relatively poor. Poor, also affects the health of operators

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 kind of rolling piston for refrigeration compressor and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] A rolling piston for a rotary refrigeration compressor, the piston material is a steel pipe after carburizing steel cold rolling.

[0030] The material of the rolling piston is steel pipe after carburizing steel cold rolling.

[0031] In this embodiment, the chemical composition of the carburized steel is as follows in % by weight: C0.17-0.23 Si0.17-0.37 Mn0.90-1.20 Cr0.90-1.20 Fe balance. Specifically: 20CrMn.

[0032] In another embodiment, the chemical composition of the above carburized steel is as follows by weight: C0.17-0.23 Si0.17-0.37 Mn0.80-1.10 Cr1.00-1.30 Ti 0.04-0.10 Fe balance. Specifically: 20CrMnTi.

[0033] A method for manufacturing a rolling piston for a rotary refrigeration compressor, comprising the steps of:

[0034] (1) Select carburized steel and cold roll it into a steel pipe that meets the precision require...

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

PropertyMeasurementUnit
hardnessaaaaaaaaaa
Login to View More

Abstract

Provided is a rolling piston for a rotary type refrigeration compressor. The rolling piston is made of a steel tube which is formed by conducting cold-rolling on carburizing steel. Chemical components of the carburizing steel include 0.17%-0.23% of C, 0.17%-0.37% of Si, 0.80%-1.10% of Mn, 1.00%-1.30% of Cr, 0.04%-0.10% of Ti and the balance Fe. The rolling piston has the advantages that the supply of goods is ample, the price is low, the cost is reduced, and the environment is not polluted.

Description

technical field [0001] The invention relates to a refrigeration compressor component and a manufacturing method thereof. Background technique [0002] Rotary refrigeration compressors, also known as rolling rotor compressors, use piston rotation to compress refrigerant gas. It has been on the market for many years, and it is one of the most commonly used compressors at present. [0003] The rolling piston is an important part of the rotary refrigeration compressor sleeve. It is set on the eccentric turn of the eccentric shaft of the compressor. It rolls along the cylinder wall during refrigeration. Contact, forming a dynamic seal, with the use of new environmentally friendly refrigerants, high efficiency, and energy saving in rotary compressors becoming more and more diversified, a more advanced proposal is made for rolling pistons that can be applied to severe conditions such as high load, high power, high temperature, and high pressure. high demands. [0004] For a long ...

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): F04C29/00F04C18/356B23P15/10
Inventor 庄希平夏祖伟林国富
Owner NINGBO YONGWEI GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com