CN103726009B - A kind of steel surface multi-component alloy co-cementation preservative coat and co-infiltration method thereof - Google Patents
A kind of steel surface multi-component alloy co-cementation preservative coat and co-infiltration method thereof Download PDFInfo
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- CN103726009B CN103726009B CN201410016597.9A CN201410016597A CN103726009B CN 103726009 B CN103726009 B CN 103726009B CN 201410016597 A CN201410016597 A CN 201410016597A CN 103726009 B CN103726009 B CN 103726009B
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Abstract
A kind of steel surface multi-component alloy co-cementation preservative coat is by zinc powder 100 parts, nickel powder 10 ~ 20 parts, light rare earths oxide compound (La
2o
3, Ce
2o
3or Nd
2o
3) 5 ~ 10 parts of multicomponent alloy powder mixed are at dispersion agent quartz sand and penetration-assisting agent (NH
4cl or H
2nCONH
2) effect under in oozing in stove 400 ~ 460 DEG C altogether, the steel product of pressure 0.08 ~ 0.15MPa to cleaning oozes process altogether, and forms one deck at steel surface and have the excellent zinc-nickel light rare earths multi-component alloy co-cementation layer of certain thickness antiseptic property.This co-penetration layer thickness 90 ~ 110um, hardness is greater than 330Hv, and neutral salt spray (not occurring red rust) is greater than 720 hours.
Description
One, technical field
The present invention relates to a kind of Metal surface anti-corrosion treatment process, particularly steel surface method for anticorrosion treatment, specifically a kind of steel surface zinc-nickel light rare earths multi-component alloy co-cementation preservative coat and co-infiltration method.
Two, background technology
Burn into corrosion is the natural enemy of ferrous materials.It is estimated, World Steel output about has 1/10th losses in burn into corrosion.The financial loss that corrosion causes China is annual at least more than 40,000,000,000 yuan.At present, comparatively developed regions major part electro-galvanizing, pot galvanize factory progressively shut down, stop, merge and change or rectify and improve.Existing factory, government also requires its attaching importance to environmental protection, positive pollution administration, qualified discharge.But these measures all fundamentally cannot solve " three wastes " problem, and processing costs is expensive, clean aseptic technic is current development trend.
Multi-component alloy co-cementation workpiece is placed in the penetration enhancer containing at least two kinds of infiltration elements, through once adding thermal diffusion process, multiple element is made to infiltrate the Process of Chemical Thermal Treatment of workpiece surface, the multiple permeation element mostly adopted at present is zinc, aluminium element, multi-component alloy co-cementation technique makes institute's metallic cementation element and matrix metal often react and form Compound Phase, infiltration layer is combined with matrix firmly, and the plating of its bonding strength, hot dip galvanizing process hardly match.Infiltration layer has the composition and tissue that are different from matrix metal, thus makes workpiece surface obtain special performance, as high temperature resistance, the performance such as corrosion-resistant, wear-resistant.Zincizing aluminium alloy technique is that current China antirust treatment is actively advocated and growing new and high technology altogether, and its maximum feature is strong adhesion, resistance to macroclimate, and erosion resistance is strong, can improve the working life of workpiece in severe environment significantly.Patent CN102127732A discloses a kind of complex alloy permeation agent and prepares the method for co-penetration layer, and the diffusion medium adopted is made up of zinc powder, aluminium powder, aluminum oxide powder, lanthanum hydroxide powder and ammonium chloride.Patent CN1970842 discloses multi-component alloy co-cementation and adds closed coating and application, and described the first layer is multi-component alloy co-cementation layer and passivation layer, and multi-component alloy co-cementation layer is made up of zinc, aluminium and lanthanum trioxide.For improving the corrosion resistance nature of multi-component alloy co-cementation layer further, reduce the cost of dispersion agent simultaneously, this invention exploits a kind of zinc-nickel light rare earths multi-component alloy co-cementation Metal surface anti-corrosion treatment process, the zinc-nickel light rare earths multi-component alloy co-cementation layer of one deck densification is formed in metallic surface, in common infiltrate journey, adopt quartz sand as dispersion agent, reduce production cost.At present, domestic also do not have zinc-nickel light rare earths multi-component alloy co-cementation Patents to report with research.
Three, summary of the invention
In order to improve the antiseptic property of steel, the present invention aims to provide a kind of surface anticorrosion layer formed by multi-component alloy co-cementation.Technical problem to be solved selects suitable common metallic cementation and corresponding co-infiltration method thereof.
Steel surface multi-component alloy co-cementation preservative coat alleged by the present invention is the preservative coat formed by the zinc-nickel light rare earths multi-component alloy co-cementation that altogether prepared by permeating method at steel surface, and the difference of another prior art is that the multicomponent alloy powder that is made up of each component of following weight part is at dispersion agent quartz sand and penetration-assisting agent ammonium chloride (NH
4cl) or/and urea (CO(NH
2)
2) in oozing altogether in stove, the preservative coat that common osmotic treated obtains is carried out to the steel article surface of cleaning under effect:
Zinc powder 100 parts, nickel powder 10 ~ 20 parts, light rare earths oxide compound 5 ~ 10 parts.
Described light rare earths oxide compound is selected from La
2o
3, Ce
2o
3or Nd
2o
3one or more oxide compounds.
Described zinc powder and nickel powder particle diameter therefore be 325 orders.
The steel article surface of described cleaning refers to the surface of this surface after shot-blasting machine rust cleaning.
The co-infiltration method of this preservative coat comprises mixing, pre-treatment and common infiltration, and difference with the prior art is described mixing is that the zinc powder of proportional quantity, nickel powder, light rare earths oxide compound and dispersion agent quartz sand are mixed to obtain compound; Described pre-treatment is placed in by compound to ooze in 180 ~ 220 DEG C of heating 2h in stove altogether, discharging after being cooled to 50 ~ 60 DEG C; Described common infiltration is by the penetration-assisting agent NH of pretreated compound, proportional quantity
4cl is or/and CO(NH
2)
2adding with the steel product of cleaning oozes in 400 ~ 460 DEG C in stove altogether, is total to osmotic treated 2h under pressure 0.08 ~ 0.15MPa; Steel product is taken out in release, cooling, and the multi-component alloy co-cementation layer on its surface is exactly the preservative coat of zinc-nickel light rare earths multi-component alloy co-cementation.
Described proportional quantity following (weight part):
Zinc powder 100 parts, nickel powder 10 ~ 20 parts, light rare earths oxide compound 5 ~ 10 parts, dispersion agent quartz sand 200 ~ 250 parts, penetration-assisting agent NH
4cl is or/and CO(NH
2)
20.2 ~ 0.4 part.
Described light rare earths oxide compound is selected from La
2o
3, Ce
2o
3or Nd
2o
3one or more oxide compounds.
Described zinc powder and the particle diameter of nickel powder are 325 orders, and quartz sand particle size is 80-100 order.
Described pressure is gauge pressure, lower same.
When penetration-assisting agent uses NH simultaneously
4cl is or/and CO(NH
2)
2time, both relative proportions are any.
The zinc-nickel light rare earths multi-component alloy co-cementation preservative coat antiseptic property that the present invention is formed at steel surface is excellent, and cost performance is high, is a kind of novel Metal surface anti-corrosion treatment technology.Advantage of the present invention is mainly reflected in:
1, erosion resistance is strong.Neutral salt spray (not occurring red rust) is greater than 720 hours.
2, wear-resisting, antifraying property good.Co-penetration layer surface hardness is greater than 330Hv, and heat, electro-galvanizing article surface are pure zinc, and coating hardness is only about 70Hv.
3, production is substantially pollution-free.Steel product adopts shot-blasting machine rust cleaning edible vegetable oil, and steel product and auxiliary agent carry out again permeating and being separated in airtight utensil, do not pollute surrounding environment.
4, can realize composite protective after japanning, be one-level, and the steel product through oozing process altogether does not affect the mechanical property of material with the bonding force of paint
Four, embodiment
Below in conjunction with embodiment, the present invention is further described.
Get 325 order zinc powders and nickel powder for subsequent use.
Embodiment 1
100g zinc powder, 10g nickel powder, 2.5gLa
2o
3, 2.5gCe
2o
3mix and be mixed with multicomponent alloy powder, be that 80 object quartz sands mix to be placed on and to ooze in stove 180 DEG C of heating 2h altogether by multicomponent alloy powder and 200g particle diameter, after being cooled to 60 DEG C, shifting out and ooze stove altogether.
By pretreated compound, 0.2gNH
4cl and clean steel product add and ooze in stove altogether, and ooze 2h altogether in 400 DEG C, pressure-controlling is at 0.1MPa, and form one deck in metallic substrate surface and have the excellent multi-component alloy co-cementation layer of certain thickness antiseptic property, its salient features result is as shown in table 1.
Embodiment 2
100g zinc powder, 10g nickel powder, 2.5gLa
2o
3, 2.5gNd
2o
3mix and be mixed with multicomponent alloy powder, be that 80 object quartz sands mix to be placed on and to ooze in stove 180 DEG C of heating 2h altogether by multicomponent alloy powder and 200g particle diameter, after being cooled to 60 DEG C, shifting out and ooze stove altogether.
By pretreated compound, 0.2gNH
4cl and clean steel product add and ooze in stove altogether, and ooze 2h altogether in 400 DEG C, pressure-controlling is at 0.1MPa, and form one deck in metallic substrate surface and have the excellent multi-component alloy co-cementation layer of certain thickness antiseptic property, its salient features result is as shown in table 1.
Embodiment 3
100g zinc powder, 15g nickel powder, 2.5gCe
2o
3, 2.5gNd
2o
3mix and be mixed with multicomponent alloy powder, be that 80 object quartz sands mix to be placed on and to ooze in stove 200 DEG C of heating 2h altogether by multicomponent alloy powder and 200g particle diameter, after being cooled to 60 DEG C, shifting out and ooze stove altogether.
By pretreated compound, 0.2gNH
4cl and clean steel product add and ooze in stove altogether, and ooze 2h altogether in 400 DEG C, pressure-controlling is at 0.1MPa, and form one deck in metallic substrate surface and have the excellent multi-component alloy co-cementation layer of certain thickness antiseptic property, its salient features result is as shown in table 1.
Embodiment 4
100g zinc powder, 15g nickel powder, 7.5gLa
2o
3, mix and be mixed with multicomponent alloy powder, be that 100 object quartz sands mix to be placed on and ooze 200 DEG C of heating 2h in stove altogether by multicomponent alloy powder and 200g particle diameter, after being cooled to 60 DEG C, shifting out and ooze stove altogether.
By pretreated compound, 0.3gNH
4cl and clean steel product add and ooze in stove altogether, and ooze 2h altogether in 420 DEG C, pressure-controlling is at 0.12MPa, and form one deck in metallic substrate surface and have the excellent multi-component alloy co-cementation layer of certain thickness antiseptic property, its salient features result is as shown in table 1.
Embodiment 5
100g zinc powder, 20g nickel powder, 2.5gCe
2o
3, 7.5gLa
2o
3mix and be mixed with multicomponent alloy powder, be that 100 object quartz sands mix to be placed on and to ooze in stove 220 DEG C of heating 2h altogether by multicomponent alloy powder and 250g particle diameter, after being cooled to 60 DEG C, shifting out and ooze stove altogether.
By pretreated compound, 0.2gNH
4cl and clean steel product add and ooze in stove altogether, and ooze 2h altogether in 400 DEG C, pressure-controlling is at 0.1MPa, and form one deck in metallic substrate surface and have the excellent multi-component alloy co-cementation layer of certain thickness antiseptic property, its salient features result is as shown in table 1.
Embodiment 6
100g zinc powder, 20g nickel powder, 10gLa
2o
3mix and be mixed with multicomponent alloy powder, be that 100 object quartz sands mix to be placed on and to ooze in stove 220 DEG C of heating 2h altogether by multicomponent alloy powder and 250g particle diameter, after being cooled to 60 DEG C, shifting out and ooze stove altogether.
By pretreated compound, 0.4gNH
4cl and clean steel product add and ooze in stove altogether, and ooze 2h altogether in 420 DEG C, pressure-controlling is at 0.12MPa, and form one deck in metallic substrate surface and have the excellent multi-component alloy co-cementation layer of certain thickness antiseptic property, its salient features result is as shown in table 1.
The salient features of table 1 multi-component alloy co-cementation layer
Claims (2)
1. a steel surface multi-component alloy co-cementation preservative coat, is characterized in that: the multicomponent alloy powder be made up of each component of following weight part is at dispersion agent quartz sand and penetration-assisting agent NH
4cl is or/and CO (NH
2)
2in oozing altogether in stove, the preservative coat that common osmotic treated obtains is carried out to the steel article surface of cleaning under effect;
Zinc powder 100 parts
Nickel powder 10 ~ 20 parts
Light rare earths oxide compound 5 ~ 10 parts;
Described zinc powder and the particle diameter of nickel powder are 325 orders; Dispersion agent quartz sand particle size 80 ~ 100 order;
Described light rare earths oxide compound is selected from La
2o
3, Ce
2o
3or Nd
2o
3one or more oxide compounds.
2. the co-infiltration method of a preservative coat as claimed in claim 1, comprise steel surface through shot-blasting machine processing of rust removing and mixing, pre-treatment and common infiltration, it is characterized in that: described mixing is that the zinc powder of proportional quantity, nickel powder, light rare earths oxide compound and dispersion agent quartz sand are mixed to obtain compound; Described pre-treatment is placed in by compound to ooze in 180 ~ 220 DEG C of heating 2h in stove altogether, discharging after being cooled to 50 ~ 60 DEG C; Described common infiltration is by the penetration-assisting agent NH of pretreated compound, proportional quantity
4cl is or/and CO (NH
2)
2adding with the steel product of cleaning oozes in 400 ~ 460 DEG C in stove altogether, is total to osmotic treated 2h under pressure 0.08 ~ 0.15MPa;
Described proportional quantity is each ingredients weight parts: zinc powder 100 parts, nickel powder 10 ~ 20 parts, light rare earths oxide compound 5 ~ 10 parts, dispersion agent quartz sand 200 ~ 250 parts, penetration-assisting agent NH
4cl is or/and CO (NH
2)
20.2 ~ 0.4 part.
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| CN104498868A (en) * | 2014-12-29 | 2015-04-08 | 国家电网公司 | Multi-element alloy zinc-impregnation method |
| CN105887006B (en) * | 2016-05-25 | 2019-01-04 | 河北晨阳工贸集团有限公司 | Capital construction metalwork alloy permeation and Dacroment composite anti-corrosive coating |
| CN106048515B (en) * | 2016-05-28 | 2018-05-22 | 刘玉珠 | A kind of metal component surface processing method |
| CN105951037B (en) * | 2016-05-28 | 2018-10-19 | 福建宏贯路桥防腐科技股份有限公司 | A kind of zinc-aluminium nickel alloy permeation protective layer preparation method |
| CN106011740B (en) * | 2016-05-31 | 2018-11-23 | 马克菲尔（长沙）新型支档科技开发有限公司 | A kind of alloy permeation and Dacroment composite anti-corrosive coating production |
| CN107794495B (en) * | 2017-10-27 | 2020-02-07 | 安徽瑞合铁路紧固件科技有限公司 | Multicomponent alloy co-permeation agent |
| CN107916394B (en) * | 2017-10-27 | 2020-04-21 | 安徽瑞合铁路紧固件科技有限公司 | Co-infiltration process for multi-element alloy co-infiltration anticorrosive coating on steel surface |
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| CN109321873A (en) * | 2018-10-30 | 2019-02-12 | 宝山钢铁股份有限公司 | A kind of zincizing agent and its zincing method being used to prepare oil bushing threaded connector surface thermal diffusion zinc coat |
| CN109468580A (en) * | 2018-12-27 | 2019-03-15 | 保定市胜新金属表面处理有限公司 | A kind of high-efficiency environment friendly processing technological flow of metal zincizing surface treatment |
| CN112391589A (en) * | 2019-08-12 | 2021-02-23 | 泰州多源合金技术有限公司 | Multicomponent alloy co-permeation formula for steel product and anti-corrosion processing technology |
| CN112391590A (en) * | 2019-08-12 | 2021-02-23 | 泰州多源合金技术有限公司 | Multicomponent alloy co-permeation agent and co-permeation process thereof |
| CN112080719B (en) * | 2020-08-26 | 2022-11-29 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Multi-element alloy co-permeation agent for elastic strip and elastic strip surface composite corrosion prevention process |
| CN112126892B (en) * | 2020-09-03 | 2022-11-29 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Multi-element alloy co-permeation agent for improving wear resistance of steel and application thereof |
| CN114481012B (en) * | 2022-03-10 | 2023-09-29 | 福建宏贯路桥防腐科技股份有限公司 | Multielement alloy co-permeation agent for steel member and corrosion prevention process thereof |
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Effective date of registration: 20190301 Address after: 230000 office building of Weishi Road Anhui Haicheng Railway Equipment Technology Co., Ltd. in Xinzhan District, Hefei City, Anhui Province Patentee after: Anhui Rui railway fastener Technology Co., Ltd. Address before: 230011 Weishi Road, Xinzhan Industrial Park, Hefei City, Anhui Province Patentee before: ANHUI HAICHENG RAILWAY EQUIPMENT TECHNOLOGY CO., LTD. |