Title:
MEDIUM-CARBON LOW-ALLOY STEEL MATERIAL, CONVEYING PIPE, PREPARATION METHOD FOR MEDIUM-CARBON LOW-ALLOY STEEL MATERIAL, AND CONCRETE PUMP TRUCK
Document Type and Number:
WIPO Patent Application WO/2023/197826
Kind Code:
A1
Abstract:
The present application provides a medium-carbon low-alloy steel material, a conveying pipe, a preparation method for the medium-carbon low-alloy steel material, and a concrete pump truck. The medium-carbon low-alloy steel material is made up of the following chemical components in percentage by mass: C: 0.55-0.60 %, Mn: 0.80-1.40 %, Si: ≤ 0.3 %, Cr: 0.2-0.4 %, Ni: 0.2-0.4 %, P: ≤ 0.020 %, S: ≤ 0.020 %, Ti: 0.04-0.10 %, V: 0.05-0.15 %, Re: 0.001-0.003 %, and the balance being Fe. On the basis of controlling the contents of principal chemical components C, Mn, Si, Cr, and Ni, and by means of utilizing micro-alloying elements Ti, V, and Re and controlling the amounts of each used, the goal of improving the toughness and wear resistance of the material is improved, and consequently the impact resistance of a conveying pipe formed from said material is improved, and wear and tear on the pipe is mitigated.
Inventors:
CHEN BO (CN)
FAN HUIJI (CN)
CUI HAIXIA (CN)
FAN HUIJI (CN)
CUI HAIXIA (CN)
Application Number:
PCT/CN2023/082135
Publication Date:
October 19, 2023
Filing Date:
March 17, 2023
Export Citation:
Assignee:
JIANGSU XCMG CONSTRUCTION MACHINERY RES INSTITUTE LTD (CN)
International Classes:
B23P15/00; C22C38/02; C21D1/18; C21D6/00; C21D9/14; C22C38/04; C22C38/46; C22C38/50; E04G21/04; F16L9/02
Foreign References:
| JP2001073083A | 2001-03-21 | |||
| CN115013601A | 2022-09-06 | |||
| CN112662944A | 2021-04-16 | |||
| CN112695248A | 2021-04-23 | |||
| JP2003147478A | 2003-05-21 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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