CN1116424C - Recovery and regeneration method of steel junction hard alloy - Google Patents
Recovery and regeneration method of steel junction hard alloy Download PDFInfo
- Publication number
- CN1116424C CN1116424C CN00120741A CN00120741A CN1116424C CN 1116424 C CN1116424 C CN 1116424C CN 00120741 A CN00120741 A CN 00120741A CN 00120741 A CN00120741 A CN 00120741A CN 1116424 C CN1116424 C CN 1116424C
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- powder
- hard alloy
- steel
- steel junction
- recovery
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- 239000000956 alloy Substances 0.000 title claims abstract description 48
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000011069 regeneration method Methods 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims description 21
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 239000003610 charcoal Substances 0.000 claims description 12
- 238000004663 powder metallurgy Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 9
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 6
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 claims description 6
- 238000010410 dusting Methods 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 abstract description 7
- 230000008929 regeneration Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 238000005482 strain hardening Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229960000935 dehydrated alcohol Drugs 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention relates to a recovery and regeneration method of steel junction hard alloy, which belongs to the technical fields of the regeneration and the application of materials. The recovery and regeneration method of steel junction hard alloy is characterized in that waste materials or waste steel in the processes of manufacturing and machining the steel junction hard alloy and after the use of the steel junction hard alloy are made into blanks by remelting, after components are adjusted, steel junction hard alloy pre-alloyed powder is manufactured by spraying powder according to a water fog method, the opening diameter of a spraying nozzle is from phi 2 to phi 8, after the reduced annealing process of the hydrogen gas of 700 DEG C to 1000 DEG C, 0.1% to 0.5% of carbon powder is added, the available steel junction hard alloy material is manufactured again by a powder melting technological method, and the performance of the available steel junction hard alloy manufactured again achieves the performance of the original steel junction hard alloy. The steel junction hard alloy can be used for various cold working moulds, various warm working moulds, shearing tools and easy abrasion machine parts.
Description
A kind of recovery and regeneration method of steel junction hard alloy belongs to the material regeneration applied technical field.
Steel Bond Hard Alloy be a kind of with the hard compounds be hardness mutually and steel make the matrix material of binding agent, it has the intensity of the hardness of hard compounds and wear resistance and steel and toughness concurrently and is in middle status between ordinary rigid alloy and the steel.Therefore the blank between Wimet and the steel has been filled up in its appearance, and its wear resistance, thermotolerance and plasticity are better than the ordinary rigid alloy in some cases, has kept heat-treatability and workability simultaneously again.Can be applicable to various cold-workings, temperature is made mould, shear tool, mechanical component easy to wear.
Matrix material can not resemble and carry out simply heavy dissolving regeneration the steel, and separation and recovery technology is complicated, a large amount of worker, moulds after waste product in the manufacturing processed and use were lost efficacy still do not have good technology and technology so far and carries out regeneration, has to discarded waste and the environmental pollution that causes resource.
The object of the present invention is to provide a kind of technology simple, and the recovery and regeneration method of steel junction hard alloy that the steel scrap bond hard alloy that produces in the manufacturing and processing work is utilized again.
Recovery and regeneration method of steel junction hard alloy of the present invention is characterized in that: this method adopts powder by atomization to combine with prior powder metallurgy technology, may further comprise the steps:
(1) remelting Steel Bond Hard Alloy adds the capacity charcoal, is warming up to 1400 ℃～1700 ℃, is incubated 15～40 minutes, base;
(2) adopt the water smoke method manufacturing Steel-bonded Cemented Carbide Pre-alloyed of dusting, nozzle bore 2～8mm;
(3) will carry out 700 ℃～1000 ℃ hydrogen reducing anneal after the prealloy powder oven dry;
(4) in prealloy powder, add 0.1%～0.5% carbon dust after, make Steel Bond Hard Alloy by prior powder metallurgy technology.
Recovery and regeneration method of steel junction hard alloy of the present invention is characterized in that: this method adopts powder by atomization to combine with prior powder metallurgy technology, may further comprise the steps:
(1) remelting Steel Bond Hard Alloy adds WC sheet and capacity charcoal after hard alloy scraps is separated out Co, is warming up to 1400 ℃～1700 ℃, is incubated 15～40 minutes, base;
(2) adopt the water smoke method manufacturing Steel-bonded Cemented Carbide Pre-alloyed of dusting, nozzle bore 2～8mm;
(3) will carry out 700 ℃～1000 ℃ hydrogen reducing anneal after the prealloy powder oven dry;
(4) in prealloy powder, add 0.1%～0.5% carbon dust after, add iron powder, nickel powder, chromium powder or ferrochrome powder, molybdenum powder or molybdenum-iron powder, manganese powder or ferromanganese powder, make it reach the traditional technology proportioning components, make Steel Bond Hard Alloy by prior powder metallurgy technology.
Recovery and regeneration method of steel junction hard alloy of the present invention is characterized in that; This method adopts powder by atomization to combine with prior powder metallurgy technology, may further comprise the steps:
(1) remelting steel scrap carries out the composition adjustment by Steel Bond Hard Alloy composition adding nickel sheet, molybdenum sheet or molybdenum-iron, ferromanganese, ferrochrome, adds WC sheet and capacity charcoal after hard alloy scraps is separated out Co again, is warming up to 1400 ℃～1700 ℃, is incubated 15～40 minutes, base;
(2) adopt the water smoke method manufacturing Steel-bonded Cemented Carbide Pre-alloyed of dusting, nozzle bore 2～8mm;
(3) will carry out 700 ℃～1000 ℃ hydrogen reducing anneal after the prealloy powder oven dry;
(4) in prealloy powder, add 0.1%～0.5% carbon dust after, add iron powder, nickel powder, chromium powder or ferrochrome powder, molybdenum powder or molybdenum-iron powder, manganese powder or ferromanganese powder, make it reach the traditional technology proportioning components, make Steel Bond Hard Alloy by prior powder metallurgy technology.
Its composition ratio of the Steel Bond Hard Alloy that the present invention makes is identical with conventional steel bond hard alloy composition and performance with performance.
Evidence: the regeneration Steel Bond Hard Alloy rate of recovery that adopts manufacture method of the present invention to make can reach more than 90%, and mechanical property is identical with the Steel Bond Hard Alloy that traditional technology is made, and meets service requirements fully.
Embodiment: example 1: 10Kg Steel Bond Hard Alloy DT40 waste material cut put into medium-frequency induction furnace and melt, add capacity charcoal (molten surface has the buoyant charcoal all the time), be warming up to 1450 ℃, be incubated 15 minutes.Casting 0.5Kg sample base dusts by 4mm aperture nozzle liquation after skimming with the water smoke method, and prealloy powder is put into 780 ℃ of hydrogen reducing furnace reduced anneals through 150 ℃ of oven dry.After taking out 1Kg prealloy powder adding 1g carbon dust, add dehydrated alcohol and carry out 48 hours ball millings.Take out oven dry and mix 3% paraffin, cross 40 mesh sieves, be pressed into the blank that 63mm weight is 1Kg, through 1286 ℃ of sintering, its density is 9.68g/cm
3, 720 ℃～840 ℃ annealing, forging into 15 * 15 * 420 bars, finished product is made in precision work after annealing, mechanical workout, thermal treatment again.Example 2: 6.6Kg Steel Bond Hard Alloy DT40 waste material cut put into medium-frequency induction furnace and melt, add WC sheet and capacity charcoal (molten surface has the buoyant charcoal all the time) after the 3.4Kg hard alloy scraps is separated out Co, be warming up to 1700 ℃, be incubated 20 minutes.Casting 0.5Kg sample base after skimming, measuring strand density is 11g/cm
3, liquation is dusted with the water smoke method by 8mm aperture nozzle, prealloy powder through 150 ℃ of oven dry, is put into 860 ℃ of hydrogen reducing furnace reduced anneals.According to the strand density of measuring WC content is reduced to 40%, the concrete operations step is: after taking out 1Kg prealloy powder adding 3g carbon dust, add 473.75g iron powder, 8.38g nickel powder, 6.29g ferrochrome powder, 8.38g molybdenum powder, 3.19g ferromanganese powder, powder mix is put into ball grinding cylinder, add dehydrated alcohol and carry out 48 hours ball millings.Take out oven dry and mix 3% paraffin, cross 40 mesh sieves, be pressed into the blank that 63mm weight is 1Kg, through 1286 ℃ of sintering, its density is 9.87g/cm
3, 720 ℃～840 ℃ annealing, forging into 15 * 15 * 420 bars, finished product is made in precision work after annealing, mechanical workout, thermal treatment again.Example 3: the useless 45# steel of 3791g is put into medium-frequency induction furnace melt, add 67g nickel sheet, 67g molybdenum sheet, 25g ferromanganese, 50g ferrochrome, add tungsten carbide chip and capacity charcoal (molten surface has the buoyant charcoal all the time) after the 6000g hard alloy scraps is separated out Co again, be warming up to 1700 ℃, be incubated 20 minutes.Casting 0.5Kg sample base after skimming, measuring strand density is 11g/cm
3, liquation is dusted with the water smoke method by 8mm aperture nozzle, prealloy powder is put into 860 ℃ of hydrogen reducing furnace reduced anneals through 150 ℃ of oven dry.According to the strand density of measuring WC content is reduced to 40%, the concrete operations step is: after taking out 1Kg prealloy powder adding 3g carbon dust, add 473.75g iron powder, 8.38g nickel powder, 6.29g ferrochrome powder, 8.38g molybdenum powder, 3.19g ferromanganese powder, powder mix is put into ball grinding cylinder, add dehydrated alcohol and carry out 48 hours ball millings.Taking out oven dry and mix 3% paraffin, cross 40 mesh sieves, be pressed into the blank that 63mm weight is 1Kg, is 9.85g/cm through 1286 ℃ of its density of sintering
3, 720 ℃～840 ℃ annealing, forging into 15 * 15 * 420 bars, finished product is made in precision work after annealing, mechanical workout, thermal treatment again.
Regeneration Steel Bond Hard Alloy mechanical property: annealed state hardness (HRC): 38～42; Use attitude hardness (HRC): 56～62; Cross-breaking strength (N/mm
2): 1800～3000; Impelling strength (Nm/cm
2): 8～20.
Claims (3)
1, a kind of recovery and regeneration method of steel junction hard alloy is characterized in that: this method adopts powder by atomization to combine with prior powder metallurgy technology, may further comprise the steps:
(1) remelting Steel Bond Hard Alloy adds the capacity charcoal, is warming up to 1400 ℃～1700 ℃, is incubated 15～40 minutes, base;
(2) adopt the water smoke method manufacturing Steel-bonded Cemented Carbide Pre-alloyed of dusting, nozzle bore 2～8mm;
(3) will carry out 700 ℃～1000 ℃ hydrogen reducing anneal after the prealloy powder oven dry;
(4) in prealloy powder, add 0.1%～0.5% carbon dust after, make Steel Bond Hard Alloy by prior powder metallurgy technology.
2, a kind of recovery and regeneration method of steel junction hard alloy is characterized in that: this method adopts powder by atomization to combine with prior powder metallurgy technology, may further comprise the steps:
(1) remelting Steel Bond Hard Alloy adds WC sheet and capacity charcoal after hard alloy scraps is separated out Co, is warming up to 1400 ℃～1700 ℃, is incubated 15～40 minutes, base;
(2) adopt the water smoke method manufacturing Steel-bonded Cemented Carbide Pre-alloyed of dusting, nozzle bore 2～8mm;
(3) will carry out 700 ℃～1000 ℃ hydrogen reducing anneal after the prealloy powder oven dry;
(4) in prealloy powder, add 0.1%～0.5% carbon dust after, add iron powder, nickel powder, chromium powder or ferrochrome powder, molybdenum powder or molybdenum-iron powder, manganese powder or ferromanganese powder, make it reach the traditional technology proportioning components, make Steel Bond Hard Alloy by prior powder metallurgy technology.
3, a kind of recovery and regeneration method of steel junction hard alloy is characterized in that: this method adopts powder by atomization to combine with prior powder metallurgy technology, may further comprise the steps:
(1) remelting steel scrap, it is whole that nickel sheet, molybdenum sheet or molybdenum-iron, ferromanganese, the ferrochrome that adds by the Steel Bond Hard Alloy composition carries out composition week, adds WC sheet and capacity charcoal after hard alloy scraps is separated out Co again, is warming up to 1400 ℃～1700 ℃, be incubated 15～40 minutes, base;
(2) adopt the water smoke method manufacturing Steel-bonded Cemented Carbide Pre-alloyed of dusting, nozzle bore 2～8mm;
(3) will carry out 700 ℃～1000 ℃ hydrogen reducing anneal after the prealloy powder oven dry;
(4) in prealloy powder, add 0.1%～0.5% carbon dust after, add iron powder, nickel powder, chromium powder or ferrochrome powder, molybdenum powder or molybdenum-iron powder, manganese powder or ferromanganese powder, make it reach the traditional technology proportioning components, make Steel Bond Hard Alloy by prior powder metallurgy technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00120741A CN1116424C (en) | 2000-07-13 | 2000-07-13 | Recovery and regeneration method of steel junction hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00120741A CN1116424C (en) | 2000-07-13 | 2000-07-13 | Recovery and regeneration method of steel junction hard alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278560A CN1278560A (en) | 2001-01-03 |
| CN1116424C true CN1116424C (en) | 2003-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00120741A Expired - Fee Related CN1116424C (en) | 2000-07-13 | 2000-07-13 | Recovery and regeneration method of steel junction hard alloy |
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| Country | Link |
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| CN (1) | CN1116424C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421843C (en) * | 2005-02-02 | 2008-10-01 | 杨斌 | High temperature alloy product material regenerative cycle utilizing method |
| CN102049521B (en) * | 2010-12-27 | 2013-01-16 | 杭州天石硬质合金有限公司 | Process for crushing waste hard alloy |
| CN102758089B (en) * | 2011-04-25 | 2013-11-27 | 自贡科瑞德新材料有限责任公司 | Recovering and regenerating method of cemented carbide scrap material |
| CN105586491A (en) * | 2016-01-18 | 2016-05-18 | 重庆科技学院 | Comprehensive recycling method for waste hard alloy |
| CN108117077B (en) * | 2017-11-22 | 2021-07-23 | 宁夏东方钽业股份有限公司 | Method for preparing composite carbide solid solution from NbTi alloy waste |
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- 2000-07-13 CN CN00120741A patent/CN1116424C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1278560A (en) | 2001-01-03 |
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