CN102443809A - Preparation technology of Zn-infiltrated alloy - Google Patents
Preparation technology of Zn-infiltrated alloy Download PDFInfo
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- CN102443809A CN102443809A CN2011104017347A CN201110401734A CN102443809A CN 102443809 A CN102443809 A CN 102443809A CN 2011104017347 A CN2011104017347 A CN 2011104017347A CN 201110401734 A CN201110401734 A CN 201110401734A CN 102443809 A CN102443809 A CN 102443809A
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Abstract
The invention discloses a preparation technology of a Zn-infiltrated alloy. The preparation technology is characterized in that the preparation technology concretely comprises the following steps: 1, taking workpieces, sandblasting to remove oil and rust; 2, applying Zn powder; 3, filling the workpieces into a furnace, sealing the furnace, heating, and penetrating and curing; 4, discharging the obtained substance from the furnace; 5, washing with high pressure water; 6, carrying out anode electrolysis polishing; 7, passivating and sealing; and 8, drying to obtain the Zn-infiltrated alloy. The workpieces processed with the technology of the invention have the advantages of simple processing process, no use of chemical raw materials in the production, no pollution to environment, no damage to the physical and mental health of operators, less kind of multicomponent alloys, and energy saving.
Description
Technical field
The invention belongs to metal heat treatmet and metallurgical binding technical field, specifically is the preparation technology of a kind of zincizing alloy relevant with metal surface anti-corrosion layer.
Background technology
The body of zincizing alloy is the steel piece product, relates to electric power, railway, a plurality of industries such as on-highway motor vehicle and military industry equipment must use accessory.The screw-nut that the outer standardized component of user as usual, screw, nut, automobile exposed parts use.The standardized component of the outdoor use of railway and highway etc. not only require the inner quality of workpiece good, also require workpiece can not get rusty in 15 years, and pulling force also have high requirements between double thread.In order to prevent that standardized component from getting rusty so that easy to maintenance later on.The primary method is to solve this problem in workpiece surface pot galvanize or hot zincizing.Known method to the hot zincizing of workpiece pot galvanize is: heat infiltration solidification → come out of the stove → nitric acid bright dipping → chromic acid passivation → finished product of the multiple alloy powder → shove charge of workpiece (like standardized component) → alkaline degreasing → acidic derusting phosphatization → apply.Though the steel piece antirust ability that aforesaid method is handled increases, salt-fog test also can only reach 200 hours, and (promptly reality is anticorrosion about 5 years) far do not reach the requirement for anticorrosion in 15 years.Its shortcoming mainly contains in two: one, degreasing and rust removal operation needs Chemicals, in the nitric acid bright dipping chromic acid passivation operation of back, also uses the chemical industry heavy metal product, and not only contaminate environment is also damaged operator's physical and mental health; Two, the more important thing is that liquid metal and metal powder are coated in workpiece (screw thread) top layer in the hot dip process; Influenced the tolerance dimension between screw thread; Twist not upper nut in the middle of making construction, must strengthen nut, but that nut makes after strengthening is loosening between screw thread, pulling force does not guarantee on the safety inadequately greatly.
Therefore, provide a kind of treatment process simple, and in process of production without industrial chemicals; Free from environmental pollution, do not damage operator's physical and mental health; And using the multicomponent alloy kind few, the preparation technology who saves the zincizing alloy of the energy has been a urgent problem.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art; The present invention provides a kind of preparation technology of zincizing alloy; The workpiece that utilizes this art breading not only treatment process simple, produce in without industrial chemicals, free from environmental pollution, do not damage operator's physical and mental health; And use the multicomponent alloy kind few, save the energy.
The objective of the invention is to realize like this:
A kind of preparation technology of zincizing alloy, this technology is: get the airtight infiltration solidification of heating of workpiece sandblast degreasing and rust removal → metallizing zinc powder → shove charge → come out of the stove → high-pressure washing → anode electrolysis polishing → passivation sealing → oven dry → finished product.
Metal zinc ratio of the present invention is thousand of workpiece/15 to 25 and only needs a kind of metal zinc.
Anode electrolysis polishing of the present invention is the same with the electro-galvanizing solutions employed, and acid or alkaline electroplating solution can.Workpiece during electro-galvanizing is that negative electrode has changed anode now into, and the zine plate during electro-galvanizing is that anode has changed negative electrode iron plate now into, and electrolysis goes out unnecessary zine ion and replaced on the negative electrode iron plate.
The upward unnecessary zine ion of iron plate that displaces of the present invention can be once more by the electro-galvanizing utilization through the conversion anode and cathode.
In the described stove of packing into airtight after the value of heating scope be: in the time of 340 ℃ to 380 ℃, the heating, temperature keeping time is 1-1.5 hours.
Described passivation time is 10 to 30 seconds.
Positive beneficial effect: the present invention heats the infiltration solidification → back of coming out of the stove and has adopted the anode electrolysis glossing without pickling, chromic acid passivation; 1. electropolishing has been removed unnecessary metallic zinc and the impurity in top layer; The zinc-iron alloy layer that exposes body; Make threaded part need not to add the big nut internal diameter size, just can make on the threaded part silk more smooth and easy, definitely solved problem that hot dip need strengthen or reduce the thread tolerance size especially pulling force obtained safety assurance greatly.2. electropolishing has been removed the metallic zinc on top layer and the zinc-iron alloy layer that impurity exposes body, and the more abundant preservative effect of passivation is greatly improved, and salt-fog test can be brought up to (and more than 20 years) more than 800 hours from 200 hours.Preservative effect can match in excellence or beauty with stainless steel, has 3. also solved simultaneously the problem that stainless steel is killed after stressed easily, causes very big inconvenience to installation.4. electrolysis goes out unnecessary metallic zinc and can utilize the galvanized way of negative electrode, utilizes unnecessary zinc atom again.Make refuse obtain utilization again, fully saved the energy.The present invention uses simple proven technique, changes combination cleverly, can make the high-end product of inconceivable highly corrosion resistant, is our spotlight, and hope can be vigorously promoted the use, and benefits society for country saves the energy.
Embodiment
Below in conjunction with embodiment the present invention is further described:
It is some to get workpiece (like standardized component), sandblast degreasing and rust removal, the then metallizing zinc powder insulation 1 hour to 1.5 hours of together packing into when heating to 340 ℃ to 380 ℃ after airtight in the stove, infiltration solidification.Come out of the stove then, high-pressure washing utilizes electroplating principle to carry out anode electrolysis; Negative electrode during original electroplating parts changes anode into; The anode of hanging zine plate changes negative electrode iron plate into, and electrolysis 20 to five or six ten minutes (fixing time according to workpiece surface is long-pending) proposes workpiece, after 10 to 30 seconds of passivation in the water soluble paint that configures (can the buy everywhere on the market) solution; Propose workpiece and deviate from unnecessary water soluble paint encapsulant, be finished product through drying again with whizzer.
Embodiment 1
100 kilograms of power taking power iron tower bolt, freeway guardrail silks; The commercial blast degreasing and rust removal applies 1.5 kilograms of zinc powders, the 1.5 hours infiltration solidifications of insulation when 380 spend of heating in the stove of packing into, and coming out of the stove then packs into through high-pressure washing electroplates in the cylinder of usefulness; Cylinder one side is an anode; Hanging zine plate one side is negative electrode, and electrolysis proposed cylinder in 20 to 60 minutes and pours out workpiece, washing.The passivation sealing in the water soluble paint encapsulant that the hand basket inherence prepares of packing into of next step workpiece is deviate from unnecessary encapsulant with whizzer and is dried and be finished product.
Can find out that from above-mentioned treatment process this technique process is few, technology is simply ripe, and production rate is fast, and production efficiency improves greatly.Need not the chemical industry heavy metal in the treatment process, do not cause environmental pollution, the operator is not caused the body and mind injury; And use the metal powder kind few.This technology electrolytic process is simple, technical maturity, and the zine ion right side that electrolysis goes out can be recovered to utilize has saved the energy.Its surface smoothness brightness of workpiece (screw) of this method processing of usefulness simultaneously and corrosion-resistant degree are all considerably beyond original pot galvanize and hot zincizing; Intrinsic strength and toughness surface size has all obtained excellent guarantee simultaneously, and the SF in the construction improves greatly.Alloy layer is as guaranteeing when 6 μ m are above, and corrosion-resistant degree can be through salt-fog test (more than 15 years) more than 600 hours, and high alloy layer can be accomplished 15 μ m, and salt-fog test 1800 hours is more than 30 years.Antirust ability never is second to stainless steel, and cost is well below stainless steel, and this technology can be used all trades and professions, can replace original various anticorrosion process, and vast potential for future development is arranged.
Above embodiment only is used to explain preferred implementation of the present invention; But the present invention is not limited to above-mentioned embodiment; In the ken that said field those of ordinary skill is possessed; Any modification of being done within spirit of the present invention and the principle, be equal to and substitute and improvement etc., it all should be encompassed within the technical scheme scope that the present invention asks for protection.
Claims (6)
1. the preparation technology of a zincizing alloy; Be characterised in that concrete preparation technology, its concrete preparation technology is following: method is: get the airtight infiltration solidification of heating of workpiece sandblast degreasing and rust removal → metallizing zinc powder → shove charge → come out of the stove → high-pressure washing → anode electrolysis polishing → passivation sealing → oven dry → finished product.
2. the preparation technology of a kind of zincizing alloy according to claim 1 is characterized in that: described metal zinc ratio is thousand of workpiece/15 to 25 and only needs a kind of metal zinc.
3. the preparation technology of a kind of zincizing alloy according to claim 1; It is characterized in that: described anode electrolysis polishing is the same with the plating solutions employed; Workpiece during electro-galvanizing is that negative electrode has changed anode now into; Zine plate during electro-galvanizing is that anode has changed negative electrode iron plate now into, and electrolysis goes out unnecessary zine ion and replaced on the negative electrode iron plate.
4. the preparation technology of a kind of zincizing alloy according to claim 3 is characterized in that: the described upward unnecessary zine ion of iron plate that displaces, and can be through the conversion anode and cathode once more by the electro-galvanizing utilization.
5. the preparation technology of a kind of zincizing alloy according to claim 1 is characterized in that: in the described stove of packing into airtight after the value of heating scope be: in the time of 340 ℃ to 380 ℃, the heating, temperature keeping time is 1-1.5 hours.
6. the preparation technology of a kind of zincizing alloy according to claim 1 is characterized in that: described passivation time is 10 to 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104017347A CN102443809A (en) | 2011-12-07 | 2011-12-07 | Preparation technology of Zn-infiltrated alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104017347A CN102443809A (en) | 2011-12-07 | 2011-12-07 | Preparation technology of Zn-infiltrated alloy |
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| CN102443809A true CN102443809A (en) | 2012-05-09 |
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| CN2011104017347A Pending CN102443809A (en) | 2011-12-07 | 2011-12-07 | Preparation technology of Zn-infiltrated alloy |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087896A (en) * | 2014-07-23 | 2014-10-08 | 郑州瑞能电气有限公司 | Alloy treatment method for carrying out zinc impregnation on surface of falling type fuse steel part |
| CN104614008A (en) * | 2015-01-12 | 2015-05-13 | 长治清华机械厂 | Method for determining whether to impregnate zinc in hole shat matched part |
| CN105220109A (en) * | 2014-06-19 | 2016-01-06 | 山东天盾矿用设备有限公司 | A kind of multi-component alloy co-cementation zinc technology |
| CN105420667A (en) * | 2016-01-08 | 2016-03-23 | 郑州中原利达新材料有限公司 | Low-temperature alloy co-penetration metal corrosion prevention technology |
| CN108300916A (en) * | 2018-02-05 | 2018-07-20 | 南通鑫祥锌业有限公司 | A kind of Alloyed Zine Sheet and its manufacture craft |
| CN108980180A (en) * | 2018-08-01 | 2018-12-11 | 国网辽宁省电力有限公司丹东供电公司 | A kind of zincizing bolt and its zincizing technique for iron tower of power transmission line |
| CN110299809A (en) * | 2019-07-22 | 2019-10-01 | 连云港宝迪汽车配件制造有限公司 | A kind of manufacturing method of automobile current generator or starter end cap |
| CN113416921A (en) * | 2021-06-23 | 2021-09-21 | 郑州中汇钛金属材料研究院有限公司 | Preparation process of nano-alloy zinc impregnation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220109A (en) * | 2014-06-19 | 2016-01-06 | 山东天盾矿用设备有限公司 | A kind of multi-component alloy co-cementation zinc technology |
| CN104087896A (en) * | 2014-07-23 | 2014-10-08 | 郑州瑞能电气有限公司 | Alloy treatment method for carrying out zinc impregnation on surface of falling type fuse steel part |
| CN104087896B (en) * | 2014-07-23 | 2016-06-22 | 郑州瑞能电气有限公司 | Fuse switch steel piece surface Zn-infiltrated alloy processing method |
| CN104614008A (en) * | 2015-01-12 | 2015-05-13 | 长治清华机械厂 | Method for determining whether to impregnate zinc in hole shat matched part |
| CN105420667A (en) * | 2016-01-08 | 2016-03-23 | 郑州中原利达新材料有限公司 | Low-temperature alloy co-penetration metal corrosion prevention technology |
| CN105420667B (en) * | 2016-01-08 | 2018-06-22 | 郑州中原利达新材料有限公司 | A kind of low-temperature alloy permeation anti-corrosion of metal technique |
| CN108300916A (en) * | 2018-02-05 | 2018-07-20 | 南通鑫祥锌业有限公司 | A kind of Alloyed Zine Sheet and its manufacture craft |
| CN108980180A (en) * | 2018-08-01 | 2018-12-11 | 国网辽宁省电力有限公司丹东供电公司 | A kind of zincizing bolt and its zincizing technique for iron tower of power transmission line |
| CN110299809A (en) * | 2019-07-22 | 2019-10-01 | 连云港宝迪汽车配件制造有限公司 | A kind of manufacturing method of automobile current generator or starter end cap |
| CN113416921A (en) * | 2021-06-23 | 2021-09-21 | 郑州中汇钛金属材料研究院有限公司 | Preparation process of nano-alloy zinc impregnation |
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Application publication date: 20120509 |