Method for manufacturing and tempering bainite wear-resistant steel and steel pipe
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A wear-resistant steel pipe and bainite technology, which is applied in the manufacture of wear-resistant steel pipe tempering, wear-resistant steel pipe, and wear-resistant steel fields, can solve the problems of undisclosed wear-resistant steel pipe manufacturing technology, achieve low cost, and improve stability properties, the effect of high hardness value
Inactive Publication Date: 2012-07-04
TSINGHUA UNIV +1
View PDF6 Cites 38 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
It can be applied to the field of wear-resistant steel pipes, but the manufacturing technology of wear-resistant steel pipes has not yet been disclosed
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] Example 1 Composition list of multiple implementations of bainite wear-resistant steel pipe:
[0023] Numbering C mn Si Cr Ai Ni V Cu number 1 0.2-0.3 1.8-2.1 0.6-0.9 0.6-0.9 0.03-0.08 0.2-0.6 0.05-0.1 0.1-0.3
Embodiment 2
[0024] Example 2 Composition list of multiple implementations of bainite wear-resistant steel pipe:
[0025] Numbering C mn Si Cr mo Ni V Cu number 1 0.2-0.3 1.8-2.1 0.6-0.9 0.6-0.9 0.3-0. 8 0.2-0.6 0.05-0.1 0.1-0.3
[0027] Numbering C mn Si Cr Ai Ni V Cu number 2 0.2-0.4 2.2-2.5 1.0-1.6 1.0-1.6 0.03-0.08 0.2-0.6 0.05-0.1 0.1-0.3
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
Property
Measurement
Unit
hardness
aaaaa
aaaaa
tensile strength
aaaaa
aaaaa
yield strength
aaaaa
aaaaa
Login to view more
Abstract
The invention provides a method for manufacturing and tempering bainite wear-resistant steel and steel pipe. The bainite wear-resistant steel contains the following main ingredients of: C, Mn, Si, Cr, Ni, Cu, V, Al, P, S and the balance of Fe. The method for manufacturing the bainite wear-resistant steel pipe comprises the following steps of: alloying the raw material ingredients of bainite wear-resistant steel to form an alloy, refining the alloy by using a refining furnace, forming a pipe blank by using continuous casting, then, heating up the pipe blank, carrying out heat insulation to homogenize, then, perforating, carrying out tandem rolling, and sizing; carrying out pipe-making by using on-line rolling, then, carrying out air cooling or accelerated cooling; and after air cooling or accelerated cooling, carrying out tempering and heat insulation for 1-48 hours at the tempering temperature of 180-380 DEG C. Compared with the prior art, the method has the advantages that: the occurrence of mixed-metal texture is avoided, the recrystallization is fully guaranteed after the alloy is homogenized, two difficult problems in composite pipes internationally and domestically are solved, and a pipeline formed by directly adopting the bainite wear-resistant steel pipe is pressure-proof and wear-resistant.
Description
technical field [0001] The invention belongs to the field of steel alloys, and in particular relates to a method for manufacturing wear-resistant steel, a wear-resistant steel pipe, and a method for manufacturing and tempering the wear-resistant steel pipe. Background technique [0002] Wear-resistant steel pipes are widely used in electric power, metallurgy, mining, coal and other industries to transport sand, coal powder, ash and other abrasive granular materials; the working environment requires wear-resistant steel pipes to have high hardness and high toughness to obtain good wear resistance. In general, however, toughness deteriorates with increasing hardness. Composite pipelines are generally used in the international and domestic slurry transportation industries. Water and gas are generally used as power to drive material transportation for slurry transportation. The materials are of different sizes, and the pipelines must be wear-resistant and pressure-resistant. O...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.