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

Controllable cooling method for high-pressure common rail

A technology of high-pressure common rail and cooling method, which is applied in the direction of furnace type, furnace, heat treatment furnace, etc., can solve the problems that the strength and toughness cannot reach the ideal state, the product is easy to deform, and it is unfavorable to mechanical processing, etc., so as to shorten the production cycle, Reduced logistics costs and high process stability

Active Publication Date: 2014-12-03
SHANDONG JINMA INDAL GROUP
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both of the above two production processes require secondary heating, resulting in waste of energy and occupying too much production equipment and human resources; in addition, products using the traditional production process of quenching + tempering are prone to deformation, and are not conducive to subsequent machinery. Processing; products using the isothermal normalizing production process, the strength and toughness can not reach the ideal state

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
  • Controllable cooling method for high-pressure common rail
  • Controllable cooling method for high-pressure common rail
  • Controllable cooling method for high-pressure common rail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present invention relates to a controllable cooling method for high-pressure common-rail forgings of a diesel engine high-pressure common-rail system. The controllable cooling method includes the following process steps: arranging the forgings → controlling the inlet temperature → controlling the process parameters in the quenching zone → controlling the process in the stable zone Parameters → control process parameters in the slow cooling zone → control the temperature of outgoing wires → store the outgoing wires in baskets. Before entering the line, place the forgings according to the specified method and planar density requirements, and follow the forging production cycle, according to the figure 1 The arrangement of the incoming line is as follows: the long direction of the forgings is placed perpendicular to the moving direction of the conveyor chain; one piece is discharged every 17 to 25 seconds. As the chain rotates, it passes through the entrance curtain an...

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
Tensile strengthaaaaaaaaaa
Yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a controllable cooling method for a high-pressure common rail. The method is a thermal treatment method for a high-pressure common rail forge piece by utilizing forging waste heat, wherein the thermal treatment onto the high-pressure common rail forge piece is realized by virtue of controllable cooling in a quenching zone, a stable zone and a slow cooling zone; an inlet temperature of the high-pressure common rail forge piece is not lower than 800 DEG C and an outlet temperature of the high-pressure common rail forge piece is not higher than 250 DEG C. By virtue of the controllable cooling method disclosed by the invention, a thermal processing process and a physical metallurgical process for improving material performances are organically combined to avoid secondary heating of a thermal treatment process; and moreover, the process stability is high and the energy resource consumption is remarkably saved; not only is a reasonable metallographic texture guaranteed to enable the obtained high-pressure common rail to have good comprehensive mechanical performances, but also the energy consumption is remarkably lowered, the logistics cost is reduced, the producing and manufacturing period is shortened, and the production cost is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of engine accessories processing, and more specifically, the invention relates to a controllable cooling method for high-pressure common rails of automobile engines. Background technique [0002] The high-pressure common rail system has greatly improved the driving performance and emission performance of automobile engines. With the advancement of exhaust after-treatment technology and air-fuel ratio control technology, it is no longer at the expense of high thermal efficiency of the engine. It is very important for energy saving and environmental protection. has great significance. At present, the high-pressure common rail system has become one of the core technologies in the field of engines in the automotive industry. In our country, we have begun to break the technological monopoly of foreign countries, and gradually formed an independent core technology system. [0003] Among the high-strength materia...

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): C21D6/00C21D9/00C22C38/60C22C38/58C22C38/50C22C38/38C22C38/28C22C38/16C22C38/14
Inventor 赵昌德王万珍郭建春马祖文李玉田王家斌郑世念郑富元
Owner SHANDONG JINMA INDAL 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