CN108977720A - A kind of stainless steel bar material production method - Google Patents
A kind of stainless steel bar material production method Download PDFInfo
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- CN108977720A CN108977720A CN201810787765.2A CN201810787765A CN108977720A CN 108977720 A CN108977720 A CN 108977720A CN 201810787765 A CN201810787765 A CN 201810787765A CN 108977720 A CN108977720 A CN 108977720A
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- embryo
- stainless steel
- production method
- steel bar
- bar material
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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
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Abstract
The invention discloses a kind of stainless steel bar material production method, specific material preparation step is as follows: step 1: being input to chrome ore, scorched earth in pulverizer and crush, is sintered in mixed raw material input shaft kiln after crushing；Step 2: the semi-finished product that step 1 is sintered being transported in mineral hot furnace, and a certain amount of desulfurizing agent is added in mineral hot furnace, exports chromium hot melt；Step 3: the chromium hot melt that step 2 is obtained is added in AOD furnace, and when smelting is blown into oxygen, argon gas mixed gas starts to carry out oxidation blowing to chromium hot melt；Step 4: the molten steel that step 3 is obtained carries out casting steel material by conticaster, and makes steel embryo；Step 5: steel embryo chemical component obtained in step 4 is detected；Step 4 material embryo is subjected to multiple cold-forge forming, generates forging embryo, and grind to forging embryo.The invention stainless steel bar material production method high production efficiency, energy consumption is small, easy to operate, and practicability is high, is suitble to be widely popularized.
Description
Technical field
The invention belongs to material production technical fields, and in particular to a kind of stainless steel bar material production method.
Background technique
Stainless steel refers to the presentation passive state, anti-corrosion and rustless chrome-bearing alloy in the corrosive medias such as atmosphere and acid, alkali, salt
Steel, W (Cr)=10.5%-30%.Stainless steel can be divided into martensite, ferrite, austenite, two-phase and precipitating firmly by structural state
Change stainless steel etc., but existing stainless steel bar material production method is complex, consumes energy excessive, is not easy to operate.
Summary of the invention
The purpose of the present invention is to provide a kind of stainless steel bar material production methods, to solve to propose in above-mentioned background technique
Production method it is complex, consume energy it is excessive, be not easy to operation the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of stainless steel bar material production method, specific material
Expect that preparation step is as follows:
Step 1: being input to chrome ore, scorched earth in pulverizer and crush, is sintered in mixed raw material input shaft kiln after crushing；
Step 2: the semi-finished product that step 1 is sintered are transported in mineral hot furnace, and are added in mineral hot furnace a certain amount of
Desulfurizing agent exports chromium hot melt；
Step 3: the chromium hot melt that step 2 is obtained is added in AOD furnace, and when smelting is blown into oxygen, argon gas mixed gas
Start to carry out oxidation blowing to chromium hot melt；
Step 4: the molten steel that step 3 is obtained carries out casting steel material by conticaster, and makes steel embryo；
Step 5: steel embryo chemical component obtained in step 4 is detected；
Step 6: carrying out multiple cold-forge forming for step 4 material embryo, generates forging embryo, and grind to forging embryo.
Further, chrome ore, scorched earth are pulverized and mixed material and is added in shaft kiln by bucket elevator in the step 1.
Further, the temperature in the step 2 in mineral hot furnace is 1600-1750 degrees Celsius.
Further, reducing agent, desulfurizing agent, ferroalloy or coolant etc. are added in the step 3.
Further, the forging embryo in the step 6 after the whole grinding of body is heat-treated.
Further, gained steel embryo material composition percentage in the step 5: C:0.782%, Si:0.50%, Mn:
1.51%, P:0.045%, S:0.195%, Ni:8.02%, Cr:17.24%, Mo:0.50%.
Compared with prior art, the beneficial effects of the present invention are: not compared to traditional use two step method and the production of three cloth methods
Rust eliminating of steel ironworker's sequence, effectively reduces the cost of stainless steel smelting, chrome ore, scorched earth is input to after crushing in pulverizer
It is sintered in input shaft kiln, shortens the time of sintering, melting is carried out to the chrome ore of sintering using mineral hot furnace, and using hot sending
Mode carries out desiliconization processing to finished product, then carries out stainless steel refining again, not only reduces the cost of production and transportation, while
The flexibility of production control is improved, resulting steel embryo chemical component is detected, keeps each ingredient in product more accurate, mention
High yield quality, the invention stainless steel bar material production method have very high practicability, and entire production invention application prospect is wide
It is general, it is suitble to be widely used to promote.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of stainless steel bar material production method, specific material preparation step are as follows:
Step 1: being input to chrome ore, scorched earth in pulverizer and crush, is sintered in mixed raw material input shaft kiln after crushing；
Step 2: the semi-finished product that step 1 is sintered are transported in mineral hot furnace, and are added in mineral hot furnace a certain amount of
Desulfurizing agent exports chromium hot melt；
Step 3: the chromium hot melt that step 2 is obtained is added in AOD furnace, and when smelting is blown into oxygen, argon gas mixed gas
Start to carry out oxidation blowing to chromium hot melt；
Step 4: the molten steel that step 3 is obtained carries out casting steel material by conticaster, and makes steel embryo；
Step 5: steel embryo chemical component obtained in step 4 is detected；
Step 6: carrying out multiple cold-forge forming for step 4 material embryo, generates forging embryo, and grind to forging embryo.
Wherein, chrome ore, scorched earth are pulverized and mixed material and is added in shaft kiln by bucket elevator in the step 1.
Wherein, the temperature in the step 2 in mineral hot furnace is 1600-1750 degrees Celsius.
Wherein, reducing agent, desulfurizing agent, ferroalloy or coolant etc. are added in the step 3.
Wherein, the forging embryo in the step 6 after the whole grinding of body is heat-treated.
Wherein, gained steel embryo material composition percentage in the step 5: C:0.782%, Si:0.50%, Mn:
1.51%, P:0.045%, S:0.195%, Ni:8.02%, Cr:17.24%, Mo:0.50%.
Embodiment 2
A kind of stainless steel bar material production method, specific material preparation step are as follows:
Step 1: it will be stirred mixing in chrome ore, cleaned coal input drum mixer, after mixing, by mixed raw material
Start to be sintered in input shaft kiln；
Step 2: the semi-finished product that step 1 is sintered are transported in mineral hot furnace, and are added in mineral hot furnace a certain amount of
Desulfurizing agent exports chromium hot melt；
Step 3: the chromium hot melt that step 2 is obtained is added in AOD furnace, and when smelting is blown into oxygen, argon gas mixed gas
Start to carry out oxidation blowing to chromium hot melt；
Step 4: the molten steel that step 3 is obtained carries out casting steel material by conticaster, and makes steel embryo；
Step 5: steel embryo chemical component obtained in step 4 is detected；
Step 6: carrying out multiple cold-forge forming for step 4 material embryo, generates forging embryo, and grind to forging embryo.
Wherein, chrome ore, cleaned coal are crushed mixture and be added in shaft kiln by bucket elevator in the step 1.
Wherein, the temperature in the step 2 in mineral hot furnace is 1600-1750 degrees Celsius.
Wherein, reducing agent, desulfurizing agent, ferroalloy or coolant etc. are added in the step 3.
Wherein, the forging embryo in the step 6 after the whole grinding of body is heat-treated.
Wherein, gained steel embryo material composition percentage in the step 5: C:0.782%, Si:0.50%, Mn:
1.51%, P:0.045%, S:0.195%, Ni:8.02%, Cr:17.24%, Mo:0.50%.
Embodiment 3
A kind of stainless steel bar material production method, specific material preparation step are as follows:
Step 1: being input to chrome ore, scorched earth in pulverizer and crush, is sintered in mixed raw material input shaft kiln after crushing；
Step 2: by step 1 be sintered semi-finished product be transported in mineral hot furnace, start two mineral hot furnaces, by it is sintered at
Product are delivered in mineral hot furnace, and two mineral hot furnaces are spaced 2.5h output chromium hot melt；Step 3: the chromium hot melt that step 2 is obtained adds
Enter into AOD furnace, when smelting is blown into oxygen, argon gas mixed gas starts to carry out oxidation blowing to chromium hot melt；
Step 4: the molten steel that step 3 is obtained carries out casting steel material by conticaster, and makes steel embryo；
Step 5: steel embryo chemical component obtained in step 4 is detected；
Step 6: carrying out multiple cold-forge forming for step 4 material embryo, generates forging embryo, and grind to forging embryo.
Wherein, chrome ore, scorched earth are pulverized and mixed material and is added in shaft kiln by bucket elevator in the step 1.
Wherein, the temperature in the step 2 in mineral hot furnace is 1600-1750 degrees Celsius.
Wherein, reducing agent, desulfurizing agent, ferroalloy or coolant etc. are added in the step 3.
Wherein, the forging embryo in the step 6 after the whole grinding of body is heat-treated.
Wherein, gained steel embryo material composition percentage in the step 5: C:0.782%, Si:0.50%, Mn:
1.51%, P:0.045%, S:0.195%, Ni:8.02%, Cr:17.24%, Mo:0.50%.
When the invention works: producing eliminating of stainless steel ironworker's sequence compared to traditional use two step method and three cloth methods, have
Effect reduces the cost of stainless steel smelting, chrome ore, scorched earth is input to after crushing in pulverizer and is sintered in input shaft kiln, shortened
The time of sintering using mineral hot furnace to carry out melting to the chrome ore of sintering, and carries out at desiliconization finished product by the way of hot sending
Reason, then carries out stainless steel refining again, not only reduces the cost of production and transportation, while also improving the flexible of production control
Property, resulting steel embryo chemical component detected, and keeps each ingredient in product more accurate, improves product quality, and the invention is not
The rod iron material producing method that becomes rusty has very high practicability, and the entire invention application prospect that produces is extensive, is suitble to be widely used to promote.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of stainless steel bar material production method, which is characterized in that specific material preparation step is as follows:
Step 1: being input to chrome ore, scorched earth in pulverizer and crush, is sintered in mixed raw material input shaft kiln after crushing；
Step 2: the semi-finished product that step 1 is sintered are transported in mineral hot furnace, and a certain amount of desulfurization is added in mineral hot furnace
Agent exports chromium hot melt；
Step 3: the chromium hot melt that step 2 is obtained is added in AOD furnace, and when smelting is blown into oxygen, argon gas mixed gas starts
Oxidation blowing is carried out to chromium hot melt；
Step 4: the molten steel that step 3 is obtained carries out casting steel material by conticaster, and makes steel embryo；
Step 5: steel embryo chemical component obtained in step 4 is detected；
Step 6: carrying out multiple cold-forge forming for step 4 material embryo, generates forging embryo, and grind to forging embryo.
2. a kind of stainless steel bar material production method according to claim 1, it is characterised in that: pass through in the step 1
Chrome ore, scorched earth are pulverized and mixed material and are added in shaft kiln by bucket elevator.
3. a kind of stainless steel bar material production method according to claim 1, it is characterised in that: the step 2 chats heat
Temperature in furnace is 1600-1750 degrees Celsius.
4. a kind of stainless steel bar material production method according to claim 1, it is characterised in that: be added in the step 3
Reducing agent, desulfurizing agent, ferroalloy or coolant etc..
5. a kind of stainless steel bar material production method according to claim 1, it is characterised in that: body is whole in the step 6
Forging embryo after grinding is heat-treated.
6. a kind of stainless steel bar material production method according to claim 1, it is characterised in that: gained in the step 5
Steel embryo material composition percentage: C:0.782%, Si:0.50%, Mn:1.51%, P:0.045%, S:0.195%, Ni:
8.02%, Cr:17.24%, Mo:0.50%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810787765.2A CN108977720A (en) | 2018-07-18 | 2018-07-18 | A kind of stainless steel bar material production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810787765.2A CN108977720A (en) | 2018-07-18 | 2018-07-18 | A kind of stainless steel bar material production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042078A (en) * | 2022-08-12 | 2022-09-13 | 江苏迪泰克精密仪器有限公司 | Intelligent automatic adjustment X fluorescence analytical equipment for brass bar production line |
Citations (3)
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|---|---|---|---|---|
| CN103882277A (en) * | 2014-03-25 | 2014-06-25 | 安阳红岩铁合金有限公司 | Process for refining nickel-chrome alloy through oxygen-enriched top and bottom double-blowing two-step method |
| CN106521351A (en) * | 2016-11-08 | 2017-03-22 | 威海鑫盛动力机械制造有限公司 | Stainless steel material |
| WO2017056896A1 (en) * | 2015-10-01 | 2017-04-06 | 新日鐵住金株式会社 | Preform for crankshaft, nitride crankshaft, and manufacturing method for same |
-
2018
- 2018-07-18 CN CN201810787765.2A patent/CN108977720A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882277A (en) * | 2014-03-25 | 2014-06-25 | 安阳红岩铁合金有限公司 | Process for refining nickel-chrome alloy through oxygen-enriched top and bottom double-blowing two-step method |
| WO2017056896A1 (en) * | 2015-10-01 | 2017-04-06 | 新日鐵住金株式会社 | Preform for crankshaft, nitride crankshaft, and manufacturing method for same |
| CN106521351A (en) * | 2016-11-08 | 2017-03-22 | 威海鑫盛动力机械制造有限公司 | Stainless steel material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042078A (en) * | 2022-08-12 | 2022-09-13 | 江苏迪泰克精密仪器有限公司 | Intelligent automatic adjustment X fluorescence analytical equipment for brass bar production line |
| CN115042078B (en) * | 2022-08-12 | 2023-01-06 | 江苏迪泰克精密仪器有限公司 | Intelligent automatic adjustment X fluorescence analytical equipment for brass bar production line |
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Application publication date: 20181211 |