CN1077231A - Quick liquid carburizing compound of no cyanogen and carburization process - Google Patents
Quick liquid carburizing compound of no cyanogen and carburization process Download PDFInfo
- Publication number
- CN1077231A CN1077231A CN 92108369 CN92108369A CN1077231A CN 1077231 A CN1077231 A CN 1077231A CN 92108369 CN92108369 CN 92108369 CN 92108369 A CN92108369 A CN 92108369A CN 1077231 A CN1077231 A CN 1077231A
- Authority
- CN
- China
- Prior art keywords
- carburizing
- cyanogen
- carburization process
- quick liquid
- compound
- 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.)
- Pending
Links
- 238000005255 carburizing Methods 0.000 title claims abstract description 36
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 150000001875 compounds Chemical class 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 5
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 235000017550 sodium carbonate Nutrition 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 14
- 239000010959 steel Substances 0.000 abstract description 14
- 229910001339 C alloy Inorganic materials 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 231100000004 severe toxicity Toxicity 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 CA944665 Chemical class 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000010850 salt effect Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- ZVCDLGYNFYZZOK-UHFFFAOYSA-M sodium cyanate Chemical compound [Na]OC#N ZVCDLGYNFYZZOK-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The present invention discloses quick liquid carburizing compound of a kind of no cyanogen and carburization process.It has overcome serious, the defective such as cost an arm and a leg of carburizing agent cyanogen salt severe toxicity, public hazards that present soft steel and low-carbon alloy steel carburizing use, has remedied the deficiency of domestic 603 carburizing agents, has no cyanogen nontoxic pollution-free; Not perishable part and equipment; Carburizing speed is fast; Surface coverage is good; Need not specific installation; Advantages such as salt bath can use continuously and sediment is few.
Description
The present invention is quick liquid carburizing compound of a kind of no cyanogen and carburization process, relates in the field of metallurgy plating, the especially soft steel of metallic substance and the carburizing of low-carbon alloy steel.
The steel piece surface carburizing is carried out in the cyanogen salt bath for a long time, and this cyanogen salt toxicity is extremely strong, and serious threat operator's life security is polluted surrounding environment, and therefore, people are exploring the no cyanogen carburizing tech of steel part always.As domestic " 603 " carburizing agent of exploitation early, adopt the mixed salt-bath of urea, yellow soda ash, Repone K, sodium-chlor and wood charcoal powder, but the sodium cyanide of this carburizing agent about 1-2% of industry when handling steel part that contains organonitrogen and about 10% Zassol.English Patent GB1223952 has introduced and added silicon carbide catalysis in the carbonate of graphite, basic metal and alkaline-earth metal and villaumite, can obtain carburizing effect preferably.Yet silicon carbide can produce the silicate and the reluctant residue that steel part there are corrosive nature with an alkali metal salt effect.Patents such as other liquid carburizing compound such as CA944665, US2568860, EP0147011, US4153481 exist such as Heating temperature higher respectively, and carburizing time is longer, and material cost is higher, the defectives such as equipment that maybe need additional whipping appts single-candidate to mend.
The objective of the invention is to avoid above-mentioned weak point of the prior art, and propose quick liquid carburizing compound of no cyanogen and carburization process that a kind of soft steel and low-carbon alloy steel carburizing are used.
Purpose of the present invention can realize by following measures: following with weight percent preparation carburizing agent
Repone K 38-47%
Sodium-chlor 38-47%
Activated charcoal powder 4-12%
Yellow soda ash 5-12%
Wherein the wood charcoal powder granularity is greater than 200 orders.
Carburization process is as follows:
1, fusing and heating carburizing agent to 850 are ℃ to 950 ℃ of temperature ranges
2, salt bath is incubated 1 hour under this temperature
3, carburizing part is soaked be embedded in the bath
Because in salt bath, the carbon in the carburelant is still solid state, it and carbonate effect generation CO (carbon monoxide converter) gas, carbon monoxide with separate out the carbon of atomic condition after piece surface contacts, thereby reach the purpose of carburizing.
Compare prior art, the present invention has the following advantages:
1, after measured, it is nontoxic that the present invention does not have cyanogen, harmless, not the equipment of perishable part.
2, surface coverage is good, good heat insulation, and odorlessness, pollution-free, can save electric energy without ventilation plant.
3, carburizing speed is fast.
4, need not specific installation, existing installation can continue to use.
5, salt bath can use continuously, and sediment is few, does not need often to drag for slag or other special processing.
Below in conjunction with embodiment, the invention will be further described:
Example 1 is formulated as follows the carburizing agent 5Kg that weighs per-cent, places Stainless Steel Crucible,
Sodium-chlor 45%
Repone K 45%
Activated charcoal powder 5%
Yellow soda ash 5%
Wherein, activated charcoal powder degree is greater than 200 orders, and carburizing agent is heated to 950 ℃ and insulation 1 hour under this temperature.15 * 30mm sample 10 (5 20 steel, 5 20CrMnTiA) all soaks to be embedded in and hangs out after spending 1-5 hour respectively in the carburizing salt bath and cold-water quench immediately, measures its surface hardness and depth of penetration respectively.
Real row 2, with following weight percent preparation carburizing agent, 5Kg places Stainless Steel Crucible.
Sodium-chlor 38%
Repone K 47%
Activated charcoal powder 8%
Yellow soda ash 7%
Wherein, activated charcoal powder degree is greater than 200 orders.Carburizing agent be heated to 930 ℃ and under this temperature the insulation 1 hour.15 * 30mm sample 10 (5 20 steel, 5 20 steel CrMnTiA) all soaks and is embedded in the carburizing salt bath, soaks respectively to bury to hang out after 1,2,3,4,5 hour and cold-water quench immediately, measures its surface hardness and depth of penetration respectively.
The surface hardening of parts such as single-piece or batch processing, the especially bike of finding, sewing machine, chain during the quick liquid carburizing compound of no cyanogen is applicable to.As power chain roller to making with 20 steel, in no cyanogen carburizing salt bath,, record depth of penetration and hardness is as follows through 930 ℃ of clock time carburizings in 45 fens, all meet ministerial standard through fatigue property and wear resisting property test.
The carburization process degree of depth (mm) hardness (HRA)
930 ℃ of 45 minutes 0.35 80-82 of roller (20A)
Claims (2)
1, the quick liquid carburizing compound of a kind of no cyanogen is characterized in that it prepares with following weight percent:
Sodium-chlor 38-47%
Repone K 38-47%
Activated charcoal powder 4-12%
Yellow soda ash 5-12%
Wherein the wood charcoal powder granularity should be greater than 200 orders.
2, a kind of carburization process of carburizing agent as claimed in claim 1 is characterized in that:
(1), fusing and heating carburizing agent to 850 are ℃-950 ℃
(2), salt bath is incubated 1 hour under this temperature
(3), carburizing part is soaked be embedded in the salt bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108369 CN1077231A (en) | 1992-04-07 | 1992-04-07 | Quick liquid carburizing compound of no cyanogen and carburization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108369 CN1077231A (en) | 1992-04-07 | 1992-04-07 | Quick liquid carburizing compound of no cyanogen and carburization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1077231A true CN1077231A (en) | 1993-10-13 |
Family
ID=4943480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92108369 Pending CN1077231A (en) | 1992-04-07 | 1992-04-07 | Quick liquid carburizing compound of no cyanogen and carburization process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1077231A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330052A (en) * | 2011-10-20 | 2012-01-25 | 铜陵市三圆特种铸造有限责任公司 | Heat treatment process for moderate-intensity steel |
| CN109136484A (en) * | 2018-10-30 | 2019-01-04 | 安徽芜湖海螺建筑安装工程有限责任公司 | Resisting fractre anchoring piece bending cutter material and preparation method thereof |
| CN110592524A (en) * | 2019-10-15 | 2019-12-20 | 西安石油大学 | Three-stage carbon-nitrogen-boron ternary gas deep co-infiltration method for low-carbon nickel-molybdenum steel |
| CN113718194A (en) * | 2021-08-05 | 2021-11-30 | 南通仁峰金属制品有限公司 | Processing technology for producing high-tensile-strength chain |
-
1992
- 1992-04-07 CN CN 92108369 patent/CN1077231A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330052A (en) * | 2011-10-20 | 2012-01-25 | 铜陵市三圆特种铸造有限责任公司 | Heat treatment process for moderate-intensity steel |
| CN109136484A (en) * | 2018-10-30 | 2019-01-04 | 安徽芜湖海螺建筑安装工程有限责任公司 | Resisting fractre anchoring piece bending cutter material and preparation method thereof |
| CN110592524A (en) * | 2019-10-15 | 2019-12-20 | 西安石油大学 | Three-stage carbon-nitrogen-boron ternary gas deep co-infiltration method for low-carbon nickel-molybdenum steel |
| CN113718194A (en) * | 2021-08-05 | 2021-11-30 | 南通仁峰金属制品有限公司 | Processing technology for producing high-tensile-strength chain |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |