CN108624801A - A kind of chromium-copper steel forging manufacturing process - Google Patents
A kind of chromium-copper steel forging manufacturing process Download PDFInfo
- Publication number
- CN108624801A CN108624801A CN201810448501.4A CN201810448501A CN108624801A CN 108624801 A CN108624801 A CN 108624801A CN 201810448501 A CN201810448501 A CN 201810448501A CN 108624801 A CN108624801 A CN 108624801A
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- manufacturing process
- chromium
- blank
- steel forging
- melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The present invention relates to steel forging manufacturing process technology field, especially a kind of chromium-copper steel forging manufacturing process includes the following steps：Melting：By 2.6 3.4% C, 0.5 1.2% Si, 0.4 0.8% Mn, 1.6 1.8% Cr, 1.0 1.8% Cu, 0.01 0.1% P, 0.01 0.1% S, remaining for Fe be put into smelting furnace carry out melting, blank molding, forging：Blank after cooling is transferred to forging station, and blank is heated to red heat state, is sent into pneumatic hammer, is allowed to be molded by turning over to beat to process, destressing：It after turning over the type of breaking into, puts it on bobbing machine, low-frequency vibration 20 30 minutes, quenching treatment：Steel forging is put into glowing furnace and carries out incrementally temperature control quenching, is then come out of the stove, oil sump cooling is put into.The product that the present invention manufactures, reliable in quality, hardness is high, and wearability is good, and service life is long, non-breakable during use, can be that user brings better economic benefit.
Description
Technical field
The present invention relates to steel forging manufacturing process technology field more particularly to a kind of chromium-copper steel forging manufacturing process.
Background technology
Abrasive material is sharp keen, hard material, to be ground softer material surface.Abrasive material has natural abrasive and manufactured abrasive
Two major classes.According to hardness classification has super hard abrasive and commonly wastes abrasive material two major classes.The range of abrasive material is very wide, from softer household de-sludging
Agent, jewel abrasive material to most hard material diamond.Abrasive material is the manufacture essential material of each sophisticated product.Many days
Right abrasive material, is replaced by manufactured abrasive.In addition to diamond, performance all less stables of natural abrasive, but still have its use
Value.Diamond is the highest abrasive material of hardness, and the place of production accounts for the 95% of Gross World Product based on South Africa, other for Brazilian, Australia is big
The ground such as Leah, Guyana and Venezuela.Industrial diamond stone is differed from canescence to black, can grinding wheel processed, sand through pulverizing Hou
Band, polishing wheel and grounds travel etc..Steel forging is typically used as the abrasive material of cement industry, it is desirable that hardness is high, and wearability is good.
Invention content
The purpose of the present invention is to solve the short disadvantages of steel forging service life in the prior art, and a kind of chromium-copper proposed
Steel forging manufacturing process.
To achieve the goals above, present invention employs following technical solutions：
A kind of chromium-copper steel forging manufacturing process is designed, is included the following steps：
Step 1：Melting：By the Cr of Mn, 1.6-1.8% of Si, 0.4-0.8% of C, 0.5-1.2% of 2.6-3.4%,
The S of P, 0.01-0.1% of Cu, 0.01-0.1% of 1.0-1.8%, remaining for Fe be put into smelting furnace carry out melting, be above
Mass percent；
Step 2：Blank is molded：Mixture after melting stirs evenly, and is subsequently poured into die for blank, natural cooling 30-
50 minutes；
Step 3：Forging：Blank after cooling is transferred to forging station, and blank is heated to red heat state, is sent into air
In hammer, it is allowed to be molded by turning over to beat to process；
Step 4：Destressing：It after turning over the type of breaking into, puts it on bobbing machine, low-frequency vibration 20-30 minutes；
Step 5：Quenching treatment：Steel forging is put into glowing furnace, controls 500-550 DEG C of temperature first, stands 1-2 hours,
Then control temperature stands 1.5-2.5 hours at 650-750 DEG C, then controls temperature at 1000-1100 DEG C, it is small to stand 2.5-3
When, it then comes out of the stove, is put into oil sump cooling.
Preferably, in step 1 when melting, after first melting Fe, C, Si, Mn, Cr, Cu, P, S are then added successively.
Preferably, during the Fe is, low-carbon waste steel.
Preferably, it comes out of the stove after cooling, finishing polishing is carried out according to required size.
Preferably, using natural gas into glowing furnace jet flames, each jet port equidistantly distributed.
A kind of chromium-copper steel forging manufacturing process proposed by the present invention, advantageous effect are：The product that the present invention manufactures, matter
Amount is reliable, and hardness is high, and wearability is good, and service life is long, non-breakable during use, can be that user brings better economy
Benefit.
Specific implementation mode
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.
A kind of chromium-copper steel forging manufacturing process, includes the following steps：
Step 1：Melting：By the Cr of Mn, 1.6-1.8% of Si, 0.4-0.8% of C, 0.5-1.2% of 2.6-3.4%,
The S of P, 0.01-0.1% of Cu, 0.01-0.1% of 1.0-1.8%, remaining for Fe be put into smelting furnace carry out melting, Fe be in,
Low-carbon waste steel when melting, after first melting Fe, then adds C, Si, Mn, Cr, Cu, P, S, due to being added in chromium-copper etc. successively
Between element, greatly increase this product hardness, improve wearability；
Step 2：Blank is molded：Mixture after melting stirs evenly, and is subsequently poured into die for blank, natural cooling 30-
50 minutes；
Step 3：Forging：Blank after cooling is transferred to forging station, and blank is heated to red heat state, is sent into air
In hammer, it is allowed to be molded by turning over to beat to process；
Step 4：Destressing：It after turning over the type of breaking into, puts it on bobbing machine, low-frequency vibration 20-30 minutes；
Step 5：Quenching treatment：Steel forging is put into glowing furnace, controls 500-550 DEG C of temperature first, stands 1-2 hours,
Then control temperature stands 1.5-2.5 hours at 650-750 DEG C, then controls temperature at 1000-1100 DEG C, it is small to stand 2.5-3
When, then come out of the stove, be put into oil sump cooling, come out of the stove it is cooling after, finishing polishing is carried out according to required size, using natural gas to quenching
Jet flames in stove, each jet port equidistantly distributed are reduced manufacturing cost, are quenched using segmented, and case hardness is improved.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of chromium-copper steel forging manufacturing process, which is characterized in that include the following steps：
Step 1：Melting：By Cr, 1.0- of Mn, 1.6-1.8% of Si, 0.4-0.8% of C, 0.5-1.2% of 2.6-3.4%
The S of P, 0.01-0.1% of 1.8% Cu, 0.01-0.1%, remaining for Fe be put into smelting furnace carry out melting, be quality above
Percentage；
Step 2：Blank is molded：Mixture after melting stirs evenly, and is subsequently poured into die for blank, 30-50 points of natural cooling
Clock；
Step 3：Forging：Blank after cooling is transferred to forging station, and blank is heated to red heat state, is sent into pneumatic hammer,
It is allowed to be molded by turning over to beat to process；
Step 4：Destressing：It after turning over the type of breaking into, puts it on bobbing machine, low-frequency vibration 20-30 minutes；
Step 5：Quenching treatment：Steel forging is put into glowing furnace, controls 500-550 DEG C of temperature first, stands 1-2 hours, then
Temperature is controlled at 650-750 DEG C, stands 1.5-2.5 hours, temperature is then controlled at 1000-1100 DEG C, stands 2.5-3 hours,
Then it comes out of the stove, is put into oil sump cooling.
2. a kind of chromium-copper steel forging manufacturing process according to claim 1, which is characterized in that in step 1 when melting, first
After Fe is melted, C, Si, Mn, Cr, Cu, P, S are then added successively.
3. a kind of chromium-copper steel forging manufacturing process according to claim 1 or 2, which is characterized in that the Fe be in, low-carbon it is useless
Steel.
4. a kind of chromium-copper steel forging manufacturing process according to claim 1, which is characterized in that after cooling of coming out of the stove, according to required
Size carries out finishing polishing.
5. a kind of chromium-copper steel forging manufacturing process according to claim 1, which is characterized in that when quenching, using natural gas to
Jet flames in glowing furnace, each jet port equidistantly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448501.4A CN108624801A (en) | 2018-05-11 | 2018-05-11 | A kind of chromium-copper steel forging manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448501.4A CN108624801A (en) | 2018-05-11 | 2018-05-11 | A kind of chromium-copper steel forging manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108624801A true CN108624801A (en) | 2018-10-09 |
Family
ID=63692602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810448501.4A Pending CN108624801A (en) | 2018-05-11 | 2018-05-11 | A kind of chromium-copper steel forging manufacturing process |
Country Status (1)
| Country | Link |
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| CN (1) | CN108624801A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1218035A (en) * | 1967-01-13 | 1971-01-06 | Trafik Ab | Improvements in or relating to cast iron of good castability and very good resistance to deterioration in connection with heat transfer or thermal cycling |
| JPS6254056A (en) * | 1985-09-03 | 1987-03-09 | Japanese National Railways<Jnr> | Brake shoe of cast iron for rolling stock |
| CN1125777A (en) * | 1995-10-31 | 1996-07-03 | 杭州临安耐磨件总厂 | Centrifugal compound wear-resistant grinding roller and production method thereof |
| CN103981430A (en) * | 2014-05-07 | 2014-08-13 | 中建材宁国新马耐磨材料有限公司 | Low-chromium alloy cast ball |
| CN104087814A (en) * | 2014-06-24 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Low chromium cast grinding ball, and manufacturing method thereof |
-
2018
- 2018-05-11 CN CN201810448501.4A patent/CN108624801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1218035A (en) * | 1967-01-13 | 1971-01-06 | Trafik Ab | Improvements in or relating to cast iron of good castability and very good resistance to deterioration in connection with heat transfer or thermal cycling |
| JPS6254056A (en) * | 1985-09-03 | 1987-03-09 | Japanese National Railways<Jnr> | Brake shoe of cast iron for rolling stock |
| CN1125777A (en) * | 1995-10-31 | 1996-07-03 | 杭州临安耐磨件总厂 | Centrifugal compound wear-resistant grinding roller and production method thereof |
| CN103981430A (en) * | 2014-05-07 | 2014-08-13 | 中建材宁国新马耐磨材料有限公司 | Low-chromium alloy cast ball |
| CN104087814A (en) * | 2014-06-24 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Low chromium cast grinding ball, and manufacturing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |
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| RJ01 | Rejection of invention patent application after publication |