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

Multicomponent alloy integrated spring flat steel

A multi-element alloy and flat steel technology, applied in the field of multi-alloy integrated spring flat steel, can solve the problems of unsatisfactory comprehensive matching of strength and toughness, and the strength level of spring steel cannot meet this requirement, and can not meet the requirements, so as to achieve production cost advantages, The effect of excellent matching, high strength and comprehensive performance

Inactive Publication Date: 2013-04-03
FANGDA SPECIAL STEEL TECHNOLOGY CO LTD
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength level of the existing spring steel does not meet this requirement or its comprehensive matching of strength and toughness is not ideal, which cannot meet the requirements of making high-strength leaf spring parts

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] A method for manufacturing multi-element alloy integrated spring flat steel:

[0010] 1. Main production equipment: 80t converter, 80t refining furnace, R9m arc continuous casting machine, walking beam heating furnace, short stress continuous rolling mill.

[0011] 2. The chemical composition of the main raw materials and alloy materials used

[0012] Table 1 Main component content of raw materials and alloy materials

[0013] raw material name Main component content (%) molten iron C: 4.23, Si: 0.5, Mn: 0.32, P: 0.96, S: 0.24 scrap steel C:0.22, Si:0.24 Ferrosilicon Si: 74.95 SiMn Mn: 66.89, Si: 16.68 Ferromanganese Mn: 81.2 Ferrochrome C:6.65, Cr:60.06 Ferrovanadium V：52.12 Ferroniobium Nb: 60.17 Ferroboron B:17.57 ferro-titanium Ti: 29.47 aluminum Al：99.53 Calcium silicon Si: 63.78, Ca: 27.67

[0014] 3. Refining outside the furnace, using LF+VD refining process.

[0015...

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
Elongation after breakaaaaaaaaaa
Login to View More

Abstract

The invention relates to a multicomponent alloy integrated spring flat steel which comprises the following chemical components in percentage by weight: 0.38-0.46% of C, 0.80-1.40% of Si, 1.00-1.70% of Mn, 0.50-0.90% of Cr, 0-0.15% of V, 0-0.050% of Nb, 0.0005-0.0025% of B, 0-0.030% of Ti, 0.0050-0.0300% of Al, at most 0.0050% of Ca, at most 0.020% of P, at most 0.010% of S, at most 0.0070% of N, at most 0.0020% of O, at most 0.0002% of H and balance of Fe. The invention adopts the compact technical production process comprising converting, refining, continuous casting, heating and rolling. Due to the microalloying of multicomponent alloy, including silicon, manganese, chrome, vanadium, niobium, boron, titanium, aluminum, calcium and the like, modification, and integration and optimization of molten steel purifying chemical technique manufacturing system, the flat steel product implements matching of high strength and favorable comprehensive properties, and has lower production cost.

Description

technical field [0001] The invention relates to a multi-element alloy integrated spring flat steel. Background technique [0002] As one of the important parts of the vehicle suspension system, the leaf spring acts as a spring element for shock absorption and buffering, and has a wide range of applications. Spring flat steel is the raw material for making leaf springs, further improving its strength level and comprehensively excellent strength and toughness matching are the keys to making high-strength leaf spring components. The high strength of spring steel can accelerate the lightweight of automobile leaf spring parts, thereby promoting the lightweight of automobiles and promoting energy saving and emission reduction. The strength level of the existing spring steel does not meet this requirement or its combination of strength and toughness is not ideal, so it cannot meet the requirements for making high-strength leaf spring parts. Contents of the invention [0003] Th...

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): C22C38/32C22C38/38
Inventor 谢飞鸣陈明钟崇武汪春雷肖洪文朱亲江徐袁欧阳志余剑王永芹余戎武李红卫张华新李海涛胡礼钢代建平柏京波陈洵明汪宁玲
Owner FANGDA SPECIAL STEEL TECHNOLOGY CO LTD
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