CN1450195A - Carburetting-resistant coating for steel work piece - Google Patents
Carburetting-resistant coating for steel work piece Download PDFInfo
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- CN1450195A CN1450195A CN 02108827 CN02108827A CN1450195A CN 1450195 A CN1450195 A CN 1450195A CN 02108827 CN02108827 CN 02108827 CN 02108827 A CN02108827 A CN 02108827A CN 1450195 A CN1450195 A CN 1450195A
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Abstract
The present invention relates to a masking paste which can be extensively used for anti-carburizing protection of tool steel, low-alloy steel and bearing steel products, and its composition is composed of (wt%) 5-25% of anti-carburizer, 10-35% of loosening agent and 40-85% of adhesive; the anti-carburizer can selectively used copper oxide, the loosening agent can selectively use glass powder, titanium dioxide and white alundum, etc. and their mixture, and the adhesive can selectively use water glass, refractory clay and quartz powder and their mixture, and its anti-carburizing effect is reached to the requirements of standard JB3999-1999.
Description
The present invention relates to the gear wheel of a kind of steelwork interim coating or coating material, particularly rock drill bit of using before thermo-chemical treatment or in its process, the masking paste of bit leg interim application before carburizing treatment or in its process.
Carburizing is that tempering is learned a kind of of heat treating method, normally the soft steel product is placed in the carburizing medium and heats, make newborn activated carbon infiltrate the steel top layer, then by quenching and low-temperaturetempering, make the surface of steelwork have high hardness and intensity, and inside still keep original toughness.In many cases, there is no need carburizing is carried out on the whole surface of steelwork, and only need its working face or thrust surface are carried out carburizing, therefore need to solve the anti-carburizing problem at other surperficial position.In the prior art, the method for the anti-carburizing of steelwork mainly contains three kinds: machining method, copper-plating method and coating method.The machining method is to strengthen the process redundancy of workpiece, treats to remove cementation zone by the machining method after the carburizing, there is shortcomings such as waste material, increase machining cost; Copper-plating method is carburizing after first copper facing on the anti-carburized surface of workpiece, and its anti-carburizing effect spy is good, but its complex procedures, cost height, and poisonous and contaminate environment; The coating method is carburizing after coating masking paste earlier on the anti-carburized surface of workpiece, and its anti-carburizing effect is fine, and it is easy and simple to handle, cost is minimum, and pollution-free; But masking paste both domestic and external still exists three big chronic diseases: in cementation process, occur creeping and cause anti-carburizing face to enlarge or dwindle, influence carburizing atmosphere in the stove, carburizing after the dope layer carbon black too much formation is spongy etc.; More or less all there are the problems referred to above in masking paste both domestic and external, and also there is one of them problem in good again masking paste.
The objective of the invention is to carry out the social demand that anti-carburization coating is handled with masking paste according to steelwork needs in cementation process; the coating that solves existing masking paste existence is at high temperature creeped; the coating carbon black too much forms three big chronic diseases such as spongy after influencing interior carburizing atmosphere of stove and carburizing; a kind of carburetting-resistant coating for steel work piece that has desirable anti-carburizing effect after carrying out carburizing in 15～30 hours under 900～1000 ℃ is provided; it belongs to environmental protection inorganic thing mixture; have favorable manufacturability and operability; have good economic benefits and social benefit, it can be widely used in tool steel; the anti-carburizing protection of steelwork such as low alloy steel and bearing steel.
The objective of the invention is to be achieved through the following technical solutions:
The present invention is a kind of mixture of inorganic substance, and its main component is made up of resistance carburizing agent, fluffy powder and binding agent etc.; The resistance carburizing agent can be selected cupric oxide for use; Fluffy powder can be selected glass powder, titanium dioxide and white fused alumina etc. and composition thereof for use; Binding agent is optional with water glass, fireclay and silica powder etc. and composition thereof.In the component of this masking paste, the content of resistance carburizing agent is 5～25% weights; The content of fluffy powder is 10～35% weights; The content of binding agent is 40～85% weights.In the component of fluffy powder, glass powder is 35～75% weights with respect to the content of fluffy powder, preferably 40～60% weights; Titanium dioxide is 15～35% weights with respect to the content of fluffy powder, preferably 20～30% weights; White fused alumina is 10～30% weights with respect to the content of fluffy powder, preferably 20～30% weights.In the component of binding agent, water glass is 55～90% weights with respect to the content of binding agent, preferably 65～85% weights; Fireclay is 5～25% weights with respect to the content of binding agent, preferably 10～20% weights; Silica powder is 5～20% weights with respect to the content of binding agent, preferably 5～15% weights.
Concrete scheme of the present invention is:
The masking paste that the present invention uses as steelwork at first must have resistance carburizing function and the resistance carburizing agent need be arranged; Secondly must be able to be coated on the steelwork surface and binding agent need be arranged; The 3rd must dispose from the steelwork surface and fluffy powder need be arranged.
The masking paste that the present invention uses as steelwork, also must satisfy following technical quality and require:
1, under 900～1000 ℃ of high temperature through 15～30 hours carburizing treatment, remove coating after, anti-carburizing face is made the cross section metallographic detects no cementation zone;
2, coating is pollution-free, does not have to climb and stretches, influence furnace atmosphere and coating carbon black three big chronic diseases such as too much formation is spongy;
3, about coating thickness 0.2mm, the uniform and smooth nothing wrinkle of coated side;
4, chemical transformation does not take place in coating in air, and peeling does not ftracture when drying;
5, coating should have certain anti-collision ability, and metal is not had harmful corrosion;
6, anti-carburizing face should have good anti-carburizing performance, can carry out car, mills, machining such as plane.
In order to satisfy anti-900～1000 ℃ of technical requirementss that reach 15～30 hours, the utility model must be a mixture of inorganic substance.
Carrying out reaching after the carburizing treatment in 15～30 hours the technical requirements that anti-carburizing face does not have cementation zone under 900～1000 ℃ in order to satisfy, choosing of resistance carburizing agent is most important.Have the fact of excellent results according to the anti-carburizing of copper facing, high temperature resistantly promptly just decompose at 1026 ℃ in view of cupric oxide has, with and with the characteristics such as favorable compatibility of material such as glass, be special ideal so select for use cupric oxide to do to hinder carburizing agent.
Under 900～1000 ℃, carry out 15～30 hours carburizing treatment in order to satisfy, for each component with this masking paste bonds, and can be coated on the steelwork surface and do not come off, thereby reach the technical requirements of anti-carburizing, that selection of binder just must meet is high temperature resistant, chemical stability good, adhesive property good, and technical requirements such as the compatibility of each component of coating is good.In binder component, water glass is made up of sodium oxide that contains different ratios and silicon-dioxide, normally can be used as the thick liquid of refractory materials and tackiness agent, and its viscosity can need be regulated by using; The main component of fireclay is a silico-aluminate, and its refractoriness has plasticity-when being higher than 1580 ℃ and water, and drying and calcining are the compact mass thing; Silica powder is silicon dioxide powder, and its fusing point is 1670～1710 ℃, and coating is played bonding and compaction.
In order to satisfy after carrying out carburizing in 15～30 hours under 900～1000 ℃, coating on the anti-carburizing face of steelwork can be peeled off easily, that the selection of fluffy powder must meet is high temperature resistant, chemical stability good, spalling resistance good, with technical requirementss such as the compatibility of each component of coating is good.In the fluffy powder component, glass powder is the fine powder that grinds to form with simple glass, and its main component is silicon-dioxide, calcium oxide and sodium oxide, its have high temperature resistant, chemical stability good, the crisp and fine and close characteristic of property particularly, peel off thereby make coating be easy to ball blast; The chemical property quite stable of titanium dioxide is not had an effect with most of chemical reagent in the ordinary course of things, and high temperature resistant, compactness and spalling are good; White fused alumina is high temperature resistant, property is crisp, easily peel off.
This coating is its solids fraction is prepared burden in definite ratio and to grind to form powdery, and reusable liquid water glass stirs with uniform mixing in definite ratio and gets final product.
The present invention has following beneficial effect than prior art:
Owing to the working conditions of this coating, technical quality are required and particularly the analysis and research carried out of three big chronic diseases and the countermeasure taked are all very correct to the defective of prior art, so received the effect of suiting the remedy to the case.At first, after carrying out carburizing in 15～30 hours under 900～1000 ℃, identify that through sampling test, chemical analysis, metallographic its anti-carburizing effect has reached the JB3999-1999 standard-required; Secondly, overcome that copper facing anti-carburizing face recess can't be removed copper plate and the defective that influences welding, solved three big chronic diseases of existing coating; The 3rd, it belongs to environmentally friendly machine, has favorable manufacturability and operability, good economic benefits and social benefit, can be widely used in the anti-carburizing protection of steelworks such as tool steel, low alloy steel and bearing steel, thereby satisfactorily realize the invention task.
Technology contents of the present invention further is described as follows in detail by the following examples:
This carburetting-resistant coating for steel work piece is a kind of mixture of inorganic substance, wherein contains 5～25% heavy resistance carburizing agents, 10～35% fluffy powders that weigh, 40～85% binding agents that weigh; The resistance carburizing agent can be selected cupric oxide for use; Fluffy powder can be selected glass powder, titanium dioxide and white fused alumina etc. and composition thereof for use; Binding agent is optional with water glass, fireclay and silica powder etc. and composition thereof.In the resistance carburizing agent, cupric oxide is 5～25% weights with respect to the content of masking paste, preferably 7～20% weights.In fluffy powder, glass powder is 35～75% weights with respect to the content of fluffy powder, preferably 40～60% weights; Titanium dioxide is 15～35% weights with respect to the content of fluffy powder, preferably 20～30% weights; White fused alumina is 10～30% weights with respect to the content of fluffy powder, preferably 20～30% weights.In binding agent, water glass is 55～90% weights with respect to the content of binding agent, preferably 65～85% weights; Fireclay is 5～25% weights with respect to the content of binding agent, preferably 10～20% weights; Silica powder is 5～20% weights with respect to the content of binding agent, preferably 5～15% weights.
As embodiment, now composition and the content range thereof by this masking paste prepares sample: cupric oxide 4 gram, glass powder 6 grams, titanium dioxide 4 grams, white fused alumina 3 grams, fireclay 5 grams, silica powder 3 grams are mixed and grind to form fine powder, add 33 gram liquid glass again and mix and get final product.
The using method of this masking paste:
1, the workpiece surface grease is cleaned up, preferably earlier workpiece is carried out Shot Blasting, reusable heat water cleans, oven dry.
2, workpiece can coldly be coated with also and can heat be coated with, promptly
Cold being coated with: be coated on workpiece surface with hairbrush;
Heat is coated with: place 70～90 ℃ hot water to soak 5～10 minutes workpiece, brush while hot after the oven dry.
3, dry, the dryer of the workpiece that coats being put into 80～100 ℃ was dried 30 minutes, and after the dry hardening of coating, sticking power is very strong, and can go into stove and carry out carburizing treatment this moment.
4, remove coating, after workpiece is come out of the stove, coating can be removed clean through ball blast or sandblast.
Claims (9)
1, a kind of carburetting-resistant coating for steel work piece is characterized in that it being a kind of mixture of inorganic substance, wherein contains 5～25% heavy resistance carburizing agents, 10～35% fluffy powders that weigh, 40～85% binding agents that weigh.
2,, it is characterized in that hindering carburizing agent and can select cupric oxide for use according to the described masking paste of claim 1; Fluffy powder can be selected glass powder, titanium dioxide and white fused alumina etc. and composition thereof for use; Binding agent is optional with water glass, fireclay and silica powder etc. and composition thereof.
3,, it is characterized in that cupric oxide is 5～25% weights with respect to the content of masking paste, preferably 7～20% weights in the resistance carburizing agent according to the described masking paste of claim 1.
According to the described masking paste of claim 1, it is characterized in that in fluffy powder that 4, glass powder is 35～75% weights with respect to the content of fluffy powder, preferably 40～60% weights.
According to the described masking paste of claim 1, it is characterized in that in fluffy powder that 5, titanium dioxide is 15～35% weights with respect to the content of fluffy powder, preferably 20～30% weights.
According to the described masking paste of claim 1, it is characterized in that in fluffy powder that 6, white fused alumina is 10～30% weights with respect to the content of fluffy powder, preferably 20～30% weights.
According to the described masking paste of claim 1, it is characterized in that in binding agent that 7, water glass is 55～90% weights with respect to the content of binding agent, preferably 65～85% weights.
According to the described masking paste of claim 1, it is characterized in that in binding agent that 8, fireclay is 5～25% weights with respect to the content of binding agent, preferably 10～20% weights.
According to the described masking paste of claim 1, it is characterized in that in binding agent that 9, silica powder is 5～20% weights with respect to the content of binding agent, preferably 5～15% weights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02108827 CN1450195A (en) | 2002-04-09 | 2002-04-09 | Carburetting-resistant coating for steel work piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02108827 CN1450195A (en) | 2002-04-09 | 2002-04-09 | Carburetting-resistant coating for steel work piece |
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| CN1450195A true CN1450195A (en) | 2003-10-22 |
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| CN 02108827 Pending CN1450195A (en) | 2002-04-09 | 2002-04-09 | Carburetting-resistant coating for steel work piece |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102015578A (en) * | 2007-04-27 | 2011-04-13 | 新日本制铁株式会社 | Binder for monolithic refractory and monolithic refractory |
| CN102211278A (en) * | 2010-04-01 | 2011-10-12 | 洛阳巨创轴承科技有限公司 | Machining process of double-row outer-ring-free cylindrical roller bearing |
| CN102430703A (en) * | 2011-12-27 | 2012-05-02 | 沈阳铸造研究所 | Carburization prevention coating for ultralow carbon stainless steel casting |
| CN102527926A (en) * | 2012-02-24 | 2012-07-04 | 上海市机械制造工艺研究所有限公司 | Cast steel water glass self-drying coating |
| CN102993838A (en) * | 2012-08-24 | 2013-03-27 | 苏州工业园区杰士通真空技术有限公司 | Anti-carburizing separant |
| CN103014593A (en) * | 2012-12-20 | 2013-04-03 | 桐乡市恒泰精密机械有限公司 | Local carburizing method for cylinder body of automobile air-conditioner compressor |
| CN103014592A (en) * | 2012-12-20 | 2013-04-03 | 桐乡市恒泰精密机械有限公司 | Local carburizing method for piston of automobile air-conditioner compressor |
| CN103060741A (en) * | 2012-12-20 | 2013-04-24 | 桐乡市恒泰精密机械有限公司 | Local carburizing method of auto air-condition compressor eccentric gear |
| CN103147036A (en) * | 2012-12-20 | 2013-06-12 | 桐乡市易锋机械厂 | Local carburization method of automobile air-conditioning compressor part |
| CN103771883A (en) * | 2014-01-06 | 2014-05-07 | 世林（漯河）冶金设备有限公司 | Nano anti-carburizing coating as well as preparation method and application thereof |
| CN104130635A (en) * | 2014-07-15 | 2014-11-05 | 沈彩英 | Seepage-proofing carbon paint |
| CN106521401A (en) * | 2016-11-11 | 2017-03-22 | 南京科润新材料技术有限公司 | Anti-carburizing paint special for finish machining parts and preparation method thereof |
| CN108976853A (en) * | 2018-07-24 | 2018-12-11 | 内蒙古第机械集团股份有限公司 | A kind of local heat treatmet protective coating and preparation method thereof |
| CN109423597A (en) * | 2017-09-02 | 2019-03-05 | 武汉华材表面科技有限公司 | A kind of drill steel carburization process |
| CN110105796A (en) * | 2019-04-24 | 2019-08-09 | 沈阳理工大学 | A kind of inorganic anti-carburizing coating and preparation method thereof |
| CN115505284A (en) * | 2022-10-28 | 2022-12-23 | 武汉两仪材料有限公司 | Nitrogen-seepage-preventing coating and preparation and application thereof |
-
2002
- 2002-04-09 CN CN 02108827 patent/CN1450195A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102015578A (en) * | 2007-04-27 | 2011-04-13 | 新日本制铁株式会社 | Binder for monolithic refractory and monolithic refractory |
| CN102015578B (en) * | 2007-04-27 | 2013-07-17 | 新日铁住金株式会社 | Binder for monolithic refractory and monolithic refractory |
| CN102211278A (en) * | 2010-04-01 | 2011-10-12 | 洛阳巨创轴承科技有限公司 | Machining process of double-row outer-ring-free cylindrical roller bearing |
| CN102430703B (en) * | 2011-12-27 | 2013-06-05 | 沈阳铸造研究所 | Carburization prevention coating for ultralow carbon stainless steel casting |
| CN102430703A (en) * | 2011-12-27 | 2012-05-02 | 沈阳铸造研究所 | Carburization prevention coating for ultralow carbon stainless steel casting |
| CN102527926A (en) * | 2012-02-24 | 2012-07-04 | 上海市机械制造工艺研究所有限公司 | Cast steel water glass self-drying coating |
| CN102527926B (en) * | 2012-02-24 | 2016-08-31 | 上海市机械制造工艺研究所有限公司 | A kind of cast steel water glass self-drying coating |
| CN102993838A (en) * | 2012-08-24 | 2013-03-27 | 苏州工业园区杰士通真空技术有限公司 | Anti-carburizing separant |
| CN103014593A (en) * | 2012-12-20 | 2013-04-03 | 桐乡市恒泰精密机械有限公司 | Local carburizing method for cylinder body of automobile air-conditioner compressor |
| CN103014592A (en) * | 2012-12-20 | 2013-04-03 | 桐乡市恒泰精密机械有限公司 | Local carburizing method for piston of automobile air-conditioner compressor |
| CN103060741A (en) * | 2012-12-20 | 2013-04-24 | 桐乡市恒泰精密机械有限公司 | Local carburizing method of auto air-condition compressor eccentric gear |
| CN103147036A (en) * | 2012-12-20 | 2013-06-12 | 桐乡市易锋机械厂 | Local carburization method of automobile air-conditioning compressor part |
| CN103060741B (en) * | 2012-12-20 | 2014-11-26 | 桐乡市恒泰精密机械有限公司 | Local carburizing method of auto air-condition compressor eccentric gear |
| CN103147036B (en) * | 2012-12-20 | 2015-04-22 | 浙江易锋机械有限公司 | Local carburization method of automobile air-conditioning compressor part |
| CN103771883A (en) * | 2014-01-06 | 2014-05-07 | 世林（漯河）冶金设备有限公司 | Nano anti-carburizing coating as well as preparation method and application thereof |
| CN103771883B (en) * | 2014-01-06 | 2015-08-05 | 世林（漯河）冶金设备有限公司 | Nanometer masking paste and its preparation method and application |
| CN104130635A (en) * | 2014-07-15 | 2014-11-05 | 沈彩英 | Seepage-proofing carbon paint |
| CN106521401A (en) * | 2016-11-11 | 2017-03-22 | 南京科润新材料技术有限公司 | Anti-carburizing paint special for finish machining parts and preparation method thereof |
| CN109423597A (en) * | 2017-09-02 | 2019-03-05 | 武汉华材表面科技有限公司 | A kind of drill steel carburization process |
| CN108976853A (en) * | 2018-07-24 | 2018-12-11 | 内蒙古第机械集团股份有限公司 | A kind of local heat treatmet protective coating and preparation method thereof |
| CN110105796A (en) * | 2019-04-24 | 2019-08-09 | 沈阳理工大学 | A kind of inorganic anti-carburizing coating and preparation method thereof |
| CN115505284A (en) * | 2022-10-28 | 2022-12-23 | 武汉两仪材料有限公司 | Nitrogen-seepage-preventing coating and preparation and application thereof |
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