CN103173714B - Zincizing method and special equipment for HT200 water pump casting - Google Patents
Zincizing method and special equipment for HT200 water pump casting Download PDFInfo
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- CN103173714B CN103173714B CN201310094359.5A CN201310094359A CN103173714B CN 103173714 B CN103173714 B CN 103173714B CN 201310094359 A CN201310094359 A CN 201310094359A CN 103173714 B CN103173714 B CN 103173714B
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Abstract
The invention belongs to the field of water pump casting anti-corrosion technology and discloses a zincizing method and special equipment for a HT200 water pump casting. The special equipment is characterized by comprising a rotary drum which can be driven to rotate by an actuating unit and is provided with a container. Slurry mixed by zinc powder, ammonium chloride boron, talcum powder and water as well as the HT200 water pump casting are loaded into the rotary drum or/and the container in the rotary drum according to the weight ratio of 10-18:1000, and a smooth, uniform and compact zincizing layer of 50-110mum is formed on the surface of the HT200 water pump casting through the speed of the rotary drum. According to the zincizing layer, the water pump formed by the HT200 casting is strengthened in anti-corrosion and abrasion performance and is prolonged in service life.
Description
Technical field
The invention belongs to water pump foundry goods technical field of anticorrosion, disclose a kind of HT200 water pump foundry goods zincing method and specific equipment.
Background technology
Cast iron HT200 foundry goods can not form preservative coat by the technique of electro-galvanizing and hot dip on its surface, normally utilizes method for paint spraying at present, at its surface spraying one deck antifouling paste; But not only thickness is too thick changes ironcasting precision for the enamelled coating sprayed due to the defect on spraying coating process, and the wear resisting property of importantly sprayed enamelled coating is poor, therefore causes HT200 water pump foundry goods shorter for work-ing life, is difficult to the object meeting long-effective corrosion.
The application for a patent for invention that Chinese Patent Application No. is 01115160.9, publication number is CN1330167A discloses a kind of working method of sherardise metal: after workpiece and zincizing agent put into vacuum resistance furnace, vacuumize, heating resistor furnace temperature rises to more than 395 degree and carry out zincizing.This zincizing technique be only applicable to density large ooze the workpiece such as steel part, steel casting, and also exist that density is little as the HT200 ironcasting of HT200 water pump foundry goods, hydrogen embrittlement and complicated structure (as impeller and baffle part), position are thinner, less, the feature that requires size more accurate, if HT200 water pump foundry goods is through the temperature of more than 200 degree, it can produce serious change due to its shape of expanding with heat and contract with cold, and causes the damage of foundry goods parts.
Summary of the invention
Object of the present invention be just to provide a kind of can zincizing on the HT200 water pump foundry goods be made up of HT200 cast iron, make top layer obtain HT200 water pump foundry goods zincing method and the specific equipment of the zinc coat of 50-110 μm.
Realizing the technical scheme that above-mentioned purpose of the present invention adopts is:
A kind of HT200 water pump foundry goods zincizing specific equipment, is characterized in that: comprise and can drive its cylinder rotated by actuating unit, and this cylinder is provided with can the material import and export of switch; Have in described cylinder at least one be provided with can switch import and export container.
The additional technical feature forming above-mentioned HT200 water pump foundry goods zincizing specific equipment also comprises:
---described container is that its barrel is closure or netted cylindrical structure;
---described container is fixed in cylinder.
Utilize above-mentioned specific equipment to carry out HT200 water pump foundry goods zincing method, comprise the following steps:
The first step, surface preparation
Select granularity to be that the phosphorus cast iron shot of 0.6-1.2 ㎜ and emergy and HT200 water pump foundry goods load in rolling barrel, surface foul such as symbol sand and greasy dirt etc. is carried out to HT200 water pump foundry goods clear up by rotating rolling barrel; Then through sandblasting, remove the dirt settling in its deep trouth, HT200 water pump foundry goods is taken out;
Second step is prepared burden
Get the zinc powder of 90-96 weight parts, the activator of ammonium chloride formation of 0.5-1.2 weight parts, the boron of 0.5-1.0 weight parts, the talcum powder of 0.5-1.5 weight parts and the water of 1.5-2.5 weight parts, be mixed into slurry, load cylinder or/and in container wherein together with the ratio that HT200 water pump foundry goods is 10-18:1000 by weight;
3rd step zincizing
Start cylinder with the rotational speed 3.5-4 hours of 500-700 revs/min, and HT200 water pump foundry goods is taken out after static 2.5-3 hours in cylinder, the top layer of HT200 water pump foundry goods can be made to obtain the zinc coat of 50-110 μm.
In above-mentioned preparation method,
---in described HT200 water pump foundry goods, larger HT200 water pump foundry goods is directly inserted in cylinder, and less pump leaf blade is then inserted in the container in cylinder;
---include the carbon black of 0.5-1.5 weight parts in described slurry or/and aluminium powder.
A kind of HT200 water pump foundry goods zincing method provided by the present invention and specific equipment are compared with prior art, have the following advantages: one, because this zincing method carries out under the normal temperature environment do not heated, top layer is enable to obtain 50-110 μm of smooth, even, fine and close zinc coat, this zinc coat enhances preservative property and the wear resistance of the water pump be made up of HT200 foundry goods, extends its work-ing life; Its two, with the addition of carbon black due in the slurry that uses in zincizing technique, make the zinc coat of formed 50-110 μm more firm; They are three years old, because used zincizing specific equipment can drive the cylinder rotated to form with the container with switch import and export that can load in this cylinder by actuating unit, in large part and the thinner smallclothes of design thickness being respectively charged into cylinder in zincizing technique and there is container that switch imports and exports, effectively can reduce the problem that large smallclothes damage due to collision in zincizing process.
accompanying drawing illustrates:
Fig. 1 is the structural representation of HT200 water pump foundry goods zincizing specific equipment;
Fig. 2 is the structural representation forming water pump light casting container in above-mentioned specific equipment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the structure of a kind of HT200 water pump foundry goods zincing method provided by the present invention and specific equipment and principle of work are described in further detail.
Be illustrated in figure 1 the structural representation forming HT200 water pump foundry goods zincizing specific equipment: its structure comprises the cylinder 2 that it can be driven to rotate by actuating unit 1, this cylinder is provided with can the material import and export 3 of switch; Be equipped with in cylinder two or more be provided with can switch import and export 4 water pump light casting container 5.
When using above-mentioned specific equipment to the foundry goods zincizing of HT200 water pump,
The first step, first carries out process process to cast(ing) surface.Namely selecting granularity to be that the phosphorus cast iron shot of 0.6-1.2 ㎜ and emergy and HT200 water pump foundry goods load in rolling barrel, clearing up by rotating the surface foul such as symbol sand and greasy dirt etc. of rolling barrel to HT200 water pump foundry goods; Then through sandblasting, remove and accord with the dirt settling such as sand and greasy dirt comprising in its deep trouth, make its surperficial freshization, then HT200 water pump foundry goods is taken out;
Second step, batching.Get zinc powder, ammonium chloride, boron, talcum powder and water and be mixed into slurry, together with the ratio for 1000:10-18, load cylinder or/and in wherein container with HT200 water pump foundry goods;
3rd step zincizing
Start cylinder with the rotational speed 3.5-4 hours of 500-700 revs/min, container simultaneously in cylinder naturally seethes rotation in cylinder, then make HT200 water pump foundry goods take out after static 2.5-3 hours in cylinder, the top layer of HT200 water pump foundry goods can be made to obtain the zinc coat of 50-110 μm.
In above-mentioned preparation method, large foundry goods directly can be loaded in cylinder, the light casting of less thinner such as pump leaf be loaded in container 5, to prevent damaged in collision in zincizing process.
The specific embodiment forming slurry in above-mentioned zincizing technique burden process is:
The water of the zinc powder of (1) 95 weight part, the ammonium chloride of 0.5 weight part, the boron of 0.7 weight part, the talcum powder of 0.6 weight part and 2.5 weight parts, be mixed into slurry, HT200 water pump foundry goods and slurry are by weight loading cylinder together with the ratio for 1000:12 or/and in container wherein;
The water of the boron of the zinc powder of (2) 90 weight parts, the ammonium chloride of 1.0 weight parts, 0.5 weight part, the talcum powder of 0.8 weight part, the carbon black of 1.5 weight parts and 2.5 weight parts, be mixed into slurry, HT200 water pump foundry goods and slurry are by weight loading cylinder together with the ratio for 1000:15 or/and in container wherein;
The water of the boron of the zinc powder of (3) 92 weight parts, the ammonium chloride of 1.2 weight parts, 0.6 weight part, the talcum powder of 0.9 weight part, the carbon black of 1.0 weight parts and 1.5 weight parts, be mixed into slurry, HT200 water pump foundry goods and slurry are by weight loading cylinder together with the ratio for 1000:18 or/and in container wherein;
The water of the boron of the zinc powder of (4) 94 weight parts, the ammonium chloride of 0.8 weight part, 0.8 weight part, the talcum powder of 1.0 weight parts, the carbon black of 0.8 weight part and 2.2 weight parts, be mixed into slurry, HT200 water pump foundry goods and slurry are by weight loading cylinder together with the ratio for 1000:16 or/and in container wherein;
The water of the boron of the zinc powder of (5) 93 weight parts, the ammonium chloride of 0.7 weight part, 0.9 weight part, the talcum powder of 0.5 weight part, the carbon black of 0.7 weight part and 2.4 weight parts, be mixed into slurry, HT200 water pump foundry goods and slurry are by weight loading cylinder together with the ratio for 1000:15 or/and in container wherein; Or
The water of the boron of the zinc powder of (6) 91 weight parts, the ammonium chloride of 0.6 weight part, 1.0 weight parts, the talcum powder of 0.7 weight part, the carbon black of 1.5 weight parts, the aluminium powder of 0.8 weight part and 1.8 weight parts, be mixed into slurry, HT200 water pump foundry goods and slurry are by weight loading cylinder together with the ratio for 1000:12 or/and in container wherein.
In burden process, the zinc powder used, boron and talcous Task-size Controlling between 100-150 orders, the Task-size Controlling of carbon black and aluminium powder between 200-300 orders, certain carbon black can also use granularity at the nano level carbon black of 100-200 nanometers.The use of carbon black can make the zinc coat of formed 50-110 μm more firm; Especially nanometer carbon black and zinc can be deep in the surface of HT200 foundry goods, and what zinc coat was combined with cast(ing) surface is more firm; And carbon black also has wear-resisting feature, make the longer service life of zinc coat; In embodiment (6), the basis of zinc powder, ammonium chloride, boron, talcum powder and carbon black adds aluminium powder, the resistance to elevated temperatures of the zinc coat on foundry goods can be made to be improved.
In formation zincizing specific equipment, its barrel of container be contained in cylinder can be closure cylindrical conformation, can also be netted cylindrical structure.When container barrel is closure cylindrical conformation, container forms separate space, slurry and light casting are loaded wherein, especially the slurry being furnished with nano level carbon black is loaded and wherein can control the thickness of zinc coat between 50-70 μm, to control the form accuracy of light casting, the slurry loaded in cylinder containing or do not contain carbon black forms the zinc coat of 70-110 μm on larger foundry goods, the object of foundry goods zincizing can not only be reached, also reduce production cost; Container barrel be as shown in Figure 2 be provided with the netted cylindrical structure of eyelet 6 time, after light casting loads this container, slurry of the same race can be realized with cylinder, make the large foundry goods in cylinder and the light casting in container form the zinc coat of consistency of thickness.
At normal temperatures and pressures by zinc powder, activator ammonium chloride, boron, talcum powder, carbon black and aluminium powder and a certain amount of water are mixed into slurry, put into cylinder to rotate together with pump, carry out cryogenic mechanical collision, the zinc powder of activation and carbon black thereof are constantly seeped into pump on the surface, pump surface are formed gradually and smooth, even, fine and close there is certain thickness anticorrosion infiltration layer.
Claims (3)
1. a HT200 water pump foundry goods zincing method, comprises the following steps:
The first step, surface preparation
Granularity is selected to be that the phosphorus cast iron shot of 0.6-1.2 ㎜ and emergy and HT200 water pump foundry goods load in rolling barrel, by rotating rolling barrel and carry out surface symbol sand to HT200 water pump foundry goods and greasy dirt foul being cleared up; Then through sandblasting, remove the dirt settling in its deep trouth, HT200 water pump foundry goods is taken out;
Second step is prepared burden
Get the zinc powder of 90-96 weight parts, activator that the ammonium chloride of 0.5-1.2 weight parts is formed, the boron of 0.5-1.0 weight parts, the talcum powder of 0.5-1.5 weight parts and 1.5-2.5 weight parts water, be mixed into slurry, load cylinder or/and in container wherein together with the ratio that HT200 water pump foundry goods is 10-18:1000 by weight;
3rd step zincizing
Start cylinder with the rotational speed 3.5-4 hours of 500-700 revs/min, and HT200 water pump foundry goods is taken out after static 2.5-3 hours in cylinder, the top layer of HT200 water pump foundry goods can be made to obtain the zinc coat of 50-110 μm.
2. a kind of HT200 water pump foundry goods zincing method as claimed in claim 1, it is characterized in that: in described HT200 water pump foundry goods, larger HT200 water pump foundry goods is directly inserted in cylinder, and less pump leaf blade is then inserted in the container in cylinder.
3. a kind of HT200 water pump foundry goods zincing method as claimed in claim 1, is characterized in that: include the carbon black of 0.5-1.5 weight parts in described slurry or/and aluminium powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094359.5A CN103173714B (en) | 2013-03-23 | 2013-03-23 | Zincizing method and special equipment for HT200 water pump casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094359.5A CN103173714B (en) | 2013-03-23 | 2013-03-23 | Zincizing method and special equipment for HT200 water pump casting |
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| CN103173714A CN103173714A (en) | 2013-06-26 |
| CN103173714B true CN103173714B (en) | 2015-05-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104498868A (en) * | 2014-12-29 | 2015-04-08 | 国家电网公司 | Multi-element alloy zinc-impregnation method |
| CN107385384B (en) * | 2017-06-02 | 2019-04-19 | 广西南宁桂知科技有限公司 | A kind of powder zincizing steel piece of no hydrogen embrittlement and surface damage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2079009A1 (en) * | 1992-07-15 | 1994-01-16 | Steve Molla | Ugs process for mechanical galvanizing |
| CN2474544Y (en) * | 2001-03-12 | 2002-01-30 | 吴中权 | Furnace body rotary powder zinc penetration equipment |
| CN101386971A (en) * | 2008-08-26 | 2009-03-18 | 中华人民共和国广东海事局湛江航标处 | Corrosion proof treatment method of anchor chain |
-
2013
- 2013-03-23 CN CN201310094359.5A patent/CN103173714B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2079009A1 (en) * | 1992-07-15 | 1994-01-16 | Steve Molla | Ugs process for mechanical galvanizing |
| CN2474544Y (en) * | 2001-03-12 | 2002-01-30 | 吴中权 | Furnace body rotary powder zinc penetration equipment |
| CN101386971A (en) * | 2008-08-26 | 2009-03-18 | 中华人民共和国广东海事局湛江航标处 | Corrosion proof treatment method of anchor chain |
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| CN103173714A (en) | 2013-06-26 |
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