Title:
SHORT-PROCESS BAINITE HOT-WORK DIE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/109106
Kind Code:
A1
Abstract:
A preparation method for a short-process bainite hot-work die, comprising: designing the components of a die steel to be: C: 0.50-0.60%, Si: 0.20-0.25%, Mn: 1.00-1.50%, W: 2.10-3.00%, Mo: 3.50-5.00%, V: 0.50-1.00%, Co: 0.60-1.10%, P:≤0.02%, RE: 0.01-0.10%, wherein [Re]/[S]>3.0 and [RE]×[S]<0.004%, and the remainder being Fe and inevitable impurities. By designing and adjusting the components of the die steel, the hardness of the bainite structure die steel material subjected to forging and cooling control is low, and the bainite structure die steel material can be directly subjected to mechanical rough machining, and is then subjected to one tempering treatment after forging and mechanical rough machining, so that a secondary enhancing effect is generated on the bainite of the die steel material. In this case, the die steel has excellent hardness, wear resistance and toughness, and has excellent comprehensive mechanical properties. According to the preparation method for a short-process bainite hot-work die, the annealing softening process before mechanical tough machining and the quenching hardening process after mechanical rough machining in the prior art are omitted, the production cycle of the hot-work die is shortened, and the energy consumption and the production cost are reduced. Also provided is a short-process bainite hot-work die.
Inventors:
LI SHUANG (CN)
CAO ZHEN (CN)
WANG ZHEN (CN)
LIU LONG (CN)
SHI YANLIN (CN)
YANG XIAOCAI (CN)
YANG ZHEN (CN)
ZHANG LUN (CN)
HUA YINGLI (CN)
XIA MINGMEI (CN)
CAO ZHEN (CN)
WANG ZHEN (CN)
LIU LONG (CN)
SHI YANLIN (CN)
YANG XIAOCAI (CN)
YANG ZHEN (CN)
ZHANG LUN (CN)
HUA YINGLI (CN)
XIA MINGMEI (CN)
Application Number:
PCT/CN2022/105085
Publication Date:
June 22, 2023
Filing Date:
July 12, 2022
Export Citation:
Assignee:
HEBEI VOCATIONAL UNIV OF INDUSTRY AND TECHNOLOGY (CN)
International Classes:
B23P15/24; C22C38/00; C23C8/38
Foreign References:
| CN114535944A | 2022-05-27 | |||
| CN111850393A | 2020-10-30 | |||
| CN105143473A | 2015-12-09 | |||
| CN103276298A | 2013-09-04 | |||
| CN104928586A | 2015-09-23 | |||
| CN102877001A | 2013-01-16 | |||
| CN103334054A | 2013-10-02 | |||
| CN113584394A | 2021-11-02 | |||
| JP2006022350A | 2006-01-26 |
Attorney, Agent or Firm:
SHIJIAZHUANG KAIYAN INTELLECTUAL PROPERTY LAW FIRM (GENERAL PARTNERSHIP) (CN)
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