CN105039904A - Chromium-titanium-nitrogen-carbon multicomponent diffusion medium and co-diffusion method thereof - Google Patents
Chromium-titanium-nitrogen-carbon multicomponent diffusion medium and co-diffusion method thereof Download PDFInfo
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- CN105039904A CN105039904A CN201510302465.7A CN201510302465A CN105039904A CN 105039904 A CN105039904 A CN 105039904A CN 201510302465 A CN201510302465 A CN 201510302465A CN 105039904 A CN105039904 A CN 105039904A
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Abstract
The invention discloses a chromium-titanium-nitrogen-carbon multicomponent diffusion medium which is composed of sodium carbonate, a chromium-titanium supply agent, a catalyst, sodium chloride, sodium hydroxide and sodium cyanate. On the basis of an improved nitrocarburizing salt bath diffusion medium, metal elements of chromium and titanium are creatively added, and through chromium-titanium-sulfur-nitrogen-carbon multicomponent medium-temperature salt bath co-diffusion, a workpiece can have the better high-temperature resistance, fatigue resistance and corrosion resistance and higher hardness. Compared with the conventional thermal treatment technology, medium-temperature salt bath co-diffusion is adopted in the medium, the treatment temperature is low, temperature keeping time is short, and energy can be saved to a great extent; and compared with carburizing and quenching, energy can be saved by more than 50%. The diffusion medium and a co-diffusion method are wide in application range and suitable for surface treatment of carbon structural steel, die steel and stainless steel.
Description
Technical field
The present invention relates to the process for treating surface of metallic substance, particularly a kind of chromium titanium nitrogen carbon multicomponent diffusion medium and co-infiltration method thereof.
Background technology
The surface of material and nearly surf zone control much machinery and the chemical property of solid, and as friction, wearing and tearing, corrosion and fracture etc., therefore adopting various process for treating surface to transform the performance of material surface, is ensure die quality and the important step in work-ing life.Current die surface treatment technology has a variety of, and conventional has carburizing, nitriding, carbonitriding, sulphonitrocarburizing, boronising, vanadinizing, TD coating, physical vapor deposition etc.Wherein, applying more is carbonitriding.Carbonitriding, be the chemical heat treatment process infiltrating nitrogen and carbon at workpiece surface, have treatment temp low, the time is short, and by steel grade restriction and the advantage such as part distortion is little, after process, the wear resistance of workpiece, solidity to corrosion, fatigue strength can get a promotion.But still there is workpiece heat-resisting ability and the poor problem of corrosion resistance nature in salt bath nitrocarburizing process.
Summary of the invention
The deficiency existed for prior art of the present invention, provides a kind of chromium titanium nitrogen carbon multicomponent diffusion medium and co-infiltration method thereof.
The technical solution used in the present invention is:
A kind of chromium titanium nitrogen carbon multicomponent diffusion medium, by sodium carbonate, form for the agent of chromium titanium, catalyzer, sodium-chlor, sodium hydroxide, Zassol, the mass percent of each component is respectively sodium carbonate 10-20%, for chromium titanium agent 1-3%, catalyzer 0.5-1.5%, Zassol 65-80%, sodium hydroxide 1-6%, sodium-chlor, surplus; Wherein, described is powdered form for the agent of chromium titanium, comprises chromium-iron alloy and titanium-iron alloy.
As the further improvement of invention, the agent of described confession chromium titanium also comprises chromium powder, Cr
2o
3, chromic salt, at least one in chromite powder.
As the further improvement of invention, the described at least one also comprised for the agent of chromium titanium in titanium sponge, titanium valve, titanium chloride, titanium oxide, titanium hydride, ilmenite powder.
As the further improvement of invention, described catalyzer is NH
4mixture in Cl and NaF.
As the further improvement of invention, described is Fe:Cr:Ti=1:2-5:1-3 for siderochrome titanium mass ratio contained in the agent of chromium titanium.
A kind of co-infiltration method, comprises the steps:
First get chromium titanium nitrogen carbon multicomponent diffusion medium heat fused, form salt bath;
Steel is put into above-mentioned penetration enhancer isothermal holding 0.5-7h, material surface forms co-penetration layer;
Take out air cooling, obtain the steel after processing;
Described diffusion medium is as described in above-mentioned any one.
As the further improvement of invention, described steel is any one in structural carbon steel, die steel, stainless steel.
As the further improvement of invention, described Heating temperature is 470-610 DEG C.
As the further improvement of invention, the described isothermal holding time is 0.5-7h.
As the further improvement of invention, described heat fused and described isothermal holding process are carried out in salt bath furnace.
Beneficial effect of the present invention:
The present invention is directed to heat-resisting ability and the poor problem of corrosion resistance nature that traditional carbonitriding exists, on the basis of the carbonitriding salt bath penetration enhancer of improvement, add metallic element chromium titanium innovatively, oozed altogether by the polynary middle thermohaline bath of chromium titanium nitrogen carbon, make workpiece can possess better heat-resisting ability, fatigue performance, corrosion resistance nature, stronger hardness and not be stained with stickiness energy preferably.Compared with normative heat treatment technology, in employing of the present invention, thermohaline bath is oozed altogether, and treatment temp is low, and soaking time is short, can be significantly energy-conservation, compared with carburizing and quenching, and can energy-conservation more than 50%.Diffusion medium of the present invention and the co-infiltration method scope of application are very wide, are applicable to structural carbon steel, die steel, stainless surface treatment.Adopt diffusion medium of the present invention and co-infiltration method to process steel material surface, can form at material surface the co-penetration layer being greater than 100 μm, co-penetration layer maximum hardness Hv
1.0can 1350 be reached.
Embodiment
Embodiment 1:
Homogeneous phase mixing is sampled for the per-cent of the agent of chromium titanium, 0.5-1.5% catalyzer, 65-80% Zassol, 1-6% sodium hydroxide, surplus sodium-chlor by 10-20% sodium carbonate, 1-3%, obtain chromium titanium nitrogen carbon multicomponent diffusion medium, pack stand-by, wherein said is powdered form for the agent of chromium titanium, comprise chromium-iron alloy and titanium-iron alloy, the agent of described confession chromium titanium also comprises chromium powder, Cr
2o
3, chromic salt, at least one in chromite powder, the described at least one also comprised for the agent of chromium titanium in titanium sponge, titanium valve, titanium chloride, titanium oxide, titanium hydride, ilmenite powder.Described catalyzer is NH
4mixture in Cl and NaF.Described is Fe:Cr:Ti=1:2-5:1-3 for siderochrome titanium mass ratio contained in the agent of chromium titanium.Getting above-mentioned chromium titanium nitrogen carbon multicomponent diffusion medium adds in salt bath furnace, is heated to 470-610 DEG C of fusing, forms salt bath, then steel is added insulation 0.5-7h, and material surface forms co-penetration layer, then takes out air cooling, obtains the steel after processing.Described steel is any one in structural carbon steel, die steel, stainless steel, and for different steel type, the temperature of heat treated is different with the time of insulation.
In the present embodiment, described is ferrochrome, ferro-titanium mixture for the agent of chromium titanium, and contained siderochrome titanium mass ratio is Fe:Cr:Ti=1:2:1; The mass percent of each component is Zassol 65%, sodium carbonate 20%, sodium-chlor 10%, sodium hydroxide 1%, confession chromium titanium agent 3%, catalyzer 1%; Salt bath heating temperature is 520 DEG C, described in the metallic substance that adds be 20# steel workpiece, soaking time is 1h.After adopting aforesaid method surface treatment, through measuring, workpiece surface alloying layer thickness is 100 μm, surface hardness Hv
1.0=750.
Embodiment 2:
With embodiment 1, difference is, shared by the agent of described confession chromium titanium, mass percent is 1%, and mass percent shared by described sodium-chlor is 12%.After adopting aforesaid method surface treatment, through measuring, workpiece surface alloying layer thickness is 100 μm, surface hardness Hv
1.0=550.
Embodiment 3:
With embodiment 1, difference is, shared by the agent of described confession chromium titanium, mass percent is 0.1%, and mass percent shared by described sodium-chlor is 12.9%.After adopting aforesaid method surface treatment, through measuring, workpiece surface alloying layer thickness is 100 μm, surface hardness Hv
1.0=450.
Embodiment 4:
With embodiment 1, difference is, described is ferrochrome, ferro-titanium, Cr for the agent of chromium titanium
2o
3, titanium hydride, ilmenite powder mixture, contained siderochrome titanium mass ratio is Fe:Cr:Ti=1:5:2; The mass percent of each component is cyanate 80%, sodium carbonate 10%, sodium-chlor 3.5%, sodium hydroxide 3%, confession chromium titanium agent 3%, catalyzer 0.5%; Heating temperature is 560 DEG C, and the metallic substance adding process is H13 die steel, and soaking time is 6h.After adopting aforesaid method surface treatment, through measuring, material surface alloying layer thickness is 120 μm, surface hardness Hv
1.0=1350, wear resisting property and fatigue resistance performance significantly improve, and die life improves 2-4 doubly.
Embodiment 5:
With embodiment 1, difference is, described is ferrochrome, ferro-titanium, Cr for the agent of chromium titanium
2o
3, titanium hydride, ilmenite powder mixture, contained siderochrome titanium mass ratio is Fe:Cr:Ti=1:2:3; The mass percent of each component is cyanate 69.5%, sodium carbonate 15%, sodium-chlor 7%, sodium hydroxide 6%, confession chromium titanium agent 1%, catalyzer 1.5%; Heating temperature is 500 DEG C, and the metallic substance adding process is stainless steel, and soaking time is 0.5h.After adopting aforesaid method surface treatment, through measuring, material surface alloying layer thickness is 100 μm, surface hardness Hv
1.0=1000, and wear resisting property, fatigue resistance performance and be not stained with stickiness can be able to significantly improve.
Claims (10)
1. a chromium titanium nitrogen carbon multicomponent diffusion medium, it is characterized in that, by sodium carbonate, form for the agent of chromium titanium, catalyzer, sodium-chlor, sodium hydroxide, Zassol, the mass percent of each component is respectively sodium carbonate 10-20%, for chromium titanium agent 1-3%, catalyzer 0.5-1.5%, Zassol 65-80%, sodium hydroxide 1-6%, sodium-chlor, surplus; Wherein, described is powdered form for the agent of chromium titanium, comprises chromium-iron alloy and titanium-iron alloy.
2. chromium titanium nitrogen carbon multicomponent diffusion medium according to claim 1, is characterized in that, the agent of described confession chromium titanium also comprises chromium powder, Cr
2o
3, chromic salts, at least one in chromite powder.
3. chromium titanium nitrogen carbon multicomponent diffusion medium according to claim 2, is characterized in that, the described at least one also comprised for the agent of chromium titanium in titanium sponge, titanium valve, titanium chloride, titanium oxide, titanium hydride, ilmenite powder.
4. the chromium titanium nitrogen carbon multicomponent diffusion medium according to any one of claim 1, it is characterized in that, described catalyzer is NH
4the mixture of Cl and NaF.
5. the chromium titanium nitrogen carbon multicomponent diffusion medium according to any one of claim 1-4, is characterized in that, described is Fe:Cr:Ti=1:2-5:1-3 for siderochrome titanium mass ratio contained in the agent of chromium titanium.
6. a co-infiltration method, is characterized in that, comprises the steps:
First get chromium titanium nitrogen carbon multicomponent diffusion medium heat fused, form salt bath;
Steel is put into above-mentioned penetration enhancer isothermal holding 0.5-7h, material surface forms co-penetration layer;
Take out air cooling, obtain the steel after processing;
Described diffusion medium is as described in any one of claim 1-5.
7. co-infiltration method according to claim 6, is characterized in that, described steel is any one in structural carbon steel, die steel, stainless steel.
8. co-infiltration method according to claim 6, is characterized in that, described Heating temperature is 470-610 DEG C.
9. co-infiltration method according to claim 6, is characterized in that, the described isothermal holding time is 0.5-7h.
10. the co-infiltration method according to any one of claim 6-9, is characterized in that, described heat fused and described isothermal holding process are carried out in salt bath furnace.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386444A (en) * | 2018-03-06 | 2018-08-10 | 南昌工程学院 | A kind of low speed formula self-lubricating high temperature rolling bearing and its manufacturing method |
| CN111118443A (en) * | 2019-12-17 | 2020-05-08 | 武汉铭高新材料有限公司 | Method for preparing metal ceramic coating on austenitic stainless steel surface |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125862A (en) * | 2011-01-18 | 2011-07-20 | 中南大学 | Low-temperature carbonitriding catalyst and carbonitriding method thereof |
| CN103382543A (en) * | 2013-07-26 | 2013-11-06 | 太原钢铁(集团)有限公司 | Special rare earth boron, carbon and nitrogen multicomponent diffusion medium for die steel and preparation method thereof |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125862A (en) * | 2011-01-18 | 2011-07-20 | 中南大学 | Low-temperature carbonitriding catalyst and carbonitriding method thereof |
| CN103382543A (en) * | 2013-07-26 | 2013-11-06 | 太原钢铁(集团)有限公司 | Special rare earth boron, carbon and nitrogen multicomponent diffusion medium for die steel and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李亚兰: "模具的表面强化处理", 《金属热处理》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386444A (en) * | 2018-03-06 | 2018-08-10 | 南昌工程学院 | A kind of low speed formula self-lubricating high temperature rolling bearing and its manufacturing method |
| CN111118443A (en) * | 2019-12-17 | 2020-05-08 | 武汉铭高新材料有限公司 | Method for preparing metal ceramic coating on austenitic stainless steel surface |
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