CN107937822A - A kind of high chrome - Google Patents
A kind of high chrome Download PDFInfo
- Publication number
- CN107937822A CN107937822A CN201711231875.2A CN201711231875A CN107937822A CN 107937822 A CN107937822 A CN 107937822A CN 201711231875 A CN201711231875 A CN 201711231875A CN 107937822 A CN107937822 A CN 107937822A
- Authority
- CN
- China
- Prior art keywords
- speed steel
- steel
- present
- shear
- remaining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
Abstract
The present invention provides a kind of high chrome, it is characterised in that is made of the chemical element of following weight percentage：C：0.56~0.65%, Si：0.40~0.60%, Mn：0.25~0.40%, Cr：8.0~9.8%, W：1.6~2.5%, Mo：4.2~5.2%, V：0.7~0.9%, Nb：0.1~0.2%, Co 0.3~0.4%, S≤0.02%, P≤0.025%, remaining is Fe；This high-speed steel of the present invention, hardness toughness is higher, and surface particles uniform and smooth, can obtain high quality high-speed steel bit.
Description
Technical field
The present invention relates to a kind of high chrome.
Background technology
The performance of paper cutting blade should have high sharpness and wearability, also have the good anti-impact for not collapsing and not rolling up
Hitting property and certain thermohardening.Holding cutting edge sharpness and sharpening property are particularly significant when paper cutting blade is sheared, and high-speed steel quenches back
Remaining carbide volume fraction after fire is between 15%~22%, and remaining carbide size is 2.5um~15um, the carbon of cutting edge
Compound easily comes off, and can both reduce sharpness, also easily causes chipping in shear history.In recent years, our research and point
Analysis demonstration thinks, if using suitable semi-high speed steel shear-steel, reduces in shear-steel carbide quantity between 3%~8%, matrix
Q-tempering hardness keeps the level of high-speed steel again, can be conducive to improve paper cutting blade sharpness, durability and be sheared face light
Cleanliness, and the alloy amount cost of shear-steel is reduced, also improve anufacturability.It is existing both at home and abroad to be applied to other tool and moulds
Semi-high speed steel patent and technology report it is more, but be all not suitable for the carbide size and quantative attribute of paper cutting blade shear-steel, also
Some lower hardness.
The content of the invention
The object of the present invention is to provide a kind of high chrome, hardness toughness is higher, and surface particles uniform and smooth, can obtain
High quality high-speed steel bit.
A kind of high chrome, is made of the chemical element of following weight percentage：C：0.56~0.65%, Si：0.40~
0.60%, Mn：0.25~0.40%, Cr：8.0~9.8%, W：1.6~2.5%, Mo：4.2~5.2%, V：0.7~0.9%,
Nb：0.1~0.2%, Co 0.3~0.4%, S≤0.02%, P≤0.025%, remaining is Fe.
It is made of the chemical element of following weight percentage：C：0.56~0.65%, Si：0.40~0.60%, Mn：
0.35~0.40%, Cr：8.0~9.8%, W：1.6~2.2%, Mo：4.2~5.2%, V：0.7~0.9%, Nb：0.1~
0.2%, Co 0.3~0.4%, S≤0.02%, P≤0.015%, remaining is Fe.
Compared with prior art, this high-speed steel of the present invention, hardness toughness is higher, and surface particles are even and fine
It is greasy, high quality high-speed steel bit can be obtained.
Embodiment
The present invention is described further with reference to embodiment：
(1) semi-high speed steel shear-steel is produced：Using high by electroslag remelting production half after electric induction furnace or electric induction furnace smelting
Fast steel shear-steel, (2) forging rolling process：By step (1) production semi-high speed steel shear-steel carry out forging rolling, its forging rolling temperature for 870 DEG C~
1080℃；(3) anneal：Semi-high speed steel shear-steel after step (2) forging rolling is heated to 850 DEG C~860 DEG C, when insulation 4~6 is small after
Furnace cooling.
This high-speed steel of the present invention, hardness toughness is higher, and surface particles uniform and smooth, can obtain high quality
High-speed steel bit.
The foregoing is merely one embodiment of the invention, is not intended to limit the present invention, all to use equivalent substitution or equivalent transformation
The technical solution that is obtained of mode, all fall within protection scope of the present invention.
Claims (2)
1. a kind of high chrome, it is characterised in that be made of the chemical element of following weight percentage：C：0.56~0.65%,
Si：0.40~0.60%, Mn：0.25~0.40%, Cr：8.0~9.8%, W：1.6~2.5%, Mo：4.2~5.2%, V：
0.7~0.9%, Nb：0.1~0.2%, Co 0.3~0.4%, S≤0.02%, P≤0.025%, remaining is Fe.
2. a kind of high chrome according to claim 1, it is characterised in that by the chemical element group of following weight percentage
Into：C：0.56~0.65%, Si：0.40~0.60%, Mn：0.35~0.40%, Cr：8.0~9.8%, W：1.6~2.2%,
Mo：4.2~5.2%, V：0.7~0.9%, Nb：0.1~0.2%, Co 0.3~0.4%, S≤0.02%, P≤0.015%,
Remaining is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711231875.2A CN107937822A (en) | 2017-11-30 | 2017-11-30 | A kind of high chrome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711231875.2A CN107937822A (en) | 2017-11-30 | 2017-11-30 | A kind of high chrome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107937822A true CN107937822A (en) | 2018-04-20 |
Family
ID=61946868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711231875.2A Withdrawn CN107937822A (en) | 2017-11-30 | 2017-11-30 | A kind of high chrome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107937822A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766817A (en) * | 2012-08-15 | 2012-11-07 | 安徽嘉龙锋钢刀具有限公司 | Semi-high speed steel shear steel |
-
2017
- 2017-11-30 CN CN201711231875.2A patent/CN107937822A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766817A (en) * | 2012-08-15 | 2012-11-07 | 安徽嘉龙锋钢刀具有限公司 | Semi-high speed steel shear steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180420 |
|
| WW01 | Invention patent application withdrawn after publication |