CN2898385Y - Non-dielectric zinc chrominum salt coated pump body and cap - Google Patents
Non-dielectric zinc chrominum salt coated pump body and cap Download PDFInfo
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- CN2898385Y CN2898385Y CN 200520047725 CN200520047725U CN2898385Y CN 2898385 Y CN2898385 Y CN 2898385Y CN 200520047725 CN200520047725 CN 200520047725 CN 200520047725 U CN200520047725 U CN 200520047725U CN 2898385 Y CN2898385 Y CN 2898385Y
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- pump
- coated
- dielectric
- metal surface
- pump body
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Abstract
The utility model relates to a pump body or pump lid coated with non-dielectric chromate of zinc. The non-dielectric chromate of zinc solution coated outside by silicate structure is coated in metal surface of the pump body or pump lid inner cavity or inside and outside metal surface. Successively, metal surface of the pump body or pump lid inner cavity or inside and outside metal surface, having been spray or brush coated with the non-dielectric chromate of zinc solution, is then baked and sintered, and then is dried after being coated with silicate solution. Therefore, the easily rusted metal surface of pump body or pump lid can be avoided eroding. The utility model has the advantages that pump materials of stainless steel and engineering plastics can be replaced by ordinary cast iron or steel articles, which greatly reduces production cost; frictional self-lubrication effect between a rotating impeller and the pump body or lid, having decreased friction coefficient, increases service life of the pump by more than 100% and the service life reached 2000-90000 hours respectively.
Description
One. technical field
The utility model design is with the pump housing, the pump cover of non-dielectric zinc chromate coated, relates to the fluid conveying machine technical field, relates in particular to the pump of a kind of pump housing pump cover material for easily become rusty foundry goods or Steel Work, is applied to peripheral pump, centrifugal pump, multistage centrifugal pump.
Two. background technique
But the pump class of existing delivering liquid medium mainly contains centrifugal pump, multistage centrifugal pump, screw rod and reciprocating plunger pump, main fed sheet of a media is water and oils, the working medium temperature is 0 ℃～80 ℃, with ironcasting or Cast Steel the pump housing as Ordinary Centrifugal Pumps, what use is that the common rust preventing agent coated pump housing is antirust, still very get rusty easily in the using process, be deposited in after rust staining comes off in the pump housing and can cause: 1. snap in pump housing internal works and influence the normal use of pump, What is more will damage pump and pump and can't using.2. rust staining enters liquid medium and mixes, and has directly influenced the quality of liquid medium; And carry acid, alkali, salt and extraordinary liquid medium and medium temperature to be lower than-30 ℃ or be higher than 200 ℃ pump, its pump housing material need be selected stainless steel or engineering plastics for use, can't use ironcasting or Cast Steel to make the pump of the pump housing, manufacturing difficulty and cost of production have been increased, the corresponding user cost that increased.
Three. summary of the invention
The purpose of implementing the utility model design is in order to overcome above-mentioned defective, to be ironcasting or the Cast Steel pump that adapts to various liquid mediums, designing a kind of pump housing, pump cover with non-dielectric zinc chromate coated ironcasting or Cast Steel.Its technology is achieved in that and comprises the pump housing, pump cover inner chamber, surface of contact and outer surface, it is characterized in that: on the pump housing, pump cover inner chamber metal surface or inside and outside metal surface, be coated with one deck non-dielectric zinc chromate solution, the non-dielectric zinc chromate coated is coated with the structure of silicate outward: non-dielectric zinc chromate solution coating thickness is in 0.02～0.05mm scope; Silicate solutions coating thickness is in 0.01～0.03mm scope; Non-dielectric zinc chromate solution is to contain to be of a size of 0.001～0.003mm flake zinc, aluminium and CrO
3The high dispersive mixed solution; And form through the baking sintering.The positive effect of implementing after this technology is: at first, overcome above-mentioned defective, made easy rusty gold metal surface avoid corrosion, for the former pump housing material that must select certain kind of stainless steel and engineering plastics for use, now can select for use common ironcasting or Steel Work to substitute, greatly reduce product cost; Simultaneously, reduce friction factor owing to forming the friction self-lubricating function between the wheel rotor of pump and the pump housing, the pump cover coating.Therefore, under above-mentioned different situations, be enhanced more than 100% the working life of all kinds of pumps, reaches 2000-90000 hour respectively.With the pump of non-dielectric zinc chromate solution coated cast iron or steel casting pump body, pump cover, can be peripheral pump, also can be centrifugal pump, multistage centrifugal pump.
Four. description of drawings
Fig. 1 is the structural representation with the non-dielectric matter zinc chrominum salt coated pump housing,
Fig. 2 is the structural representation with non-dielectric matter zinc chrominum salt coated pump cover
Wherein, the 1-pump housing, 2-non-dielectric zinc chromate solution, 3-silicate solutions, 4-pump cover;
Five. embodiment
Design is further described to the utility model below in conjunction with accompanying drawing:
See accompanying drawing 1,2, the pump housing (1), the inside and outside coated of pump cover (4) have non-dielectric zinc chromate solution (2), the structure of the outer coated silicate solutions of non-dielectric zinc chromate solution (2) (3).
Embodiment 1
See that accompanying drawing 1, the inside and outside coated of the pump housing (1) have non-dielectric zinc chromate solution (2), the outer coated silicate solutions of non-dielectric zinc chromate solution (2) structure; Embodiment: the pump housing (1) after machining finished carries out the processing of deburring, with NaOH solution the pump housing (1) metal surface is carried out carrying out phosphatization processing, shot blast after the ungrease treatment, use non-dielectric zinc chrome salt solution (2) to be sprayed on the inside and outside metal surface of the pump housing (1) then, thickness is 0.01-0.02mm, enter sintering furnace, temperature is 300 ℃ of baking sintering; With non-dielectric zinc chrome salt solution (2), the inside and outside surface that has been coated with non-dielectric zinc chromate solution (2) of the spraying pump housing (1), thickness 0.01mm enters sintering furnace again, and temperature is carried out sintering for 300 ℃; Be coated with silicate solutions (3) thickness 0.01-0.03mm and oven dry again on non-dielectric zinc chromate (2) surface.
See that accompanying drawing 2, the outer coated of pump cover (4) have non-dielectric zinc chromate solution (2), the structure of the outer coated silicate solutions of non-dielectric zinc chromate solution (2) (3); Embodiment is the same, is not described in detail, and omits.
Claims (4)
1. the utility model is designed to the pump housing, the pump cover with the non-dielectric zinc chromate coated, comprise the pump housing (1), pump cover (4), it is characterized in that: on the pump housing (1), pump cover (4) inner chamber metal surface or inside and outside metal surface, be coated with one deck non-dielectric zinc chrome salt solution (2), non-dielectric zinc chrome salt solution is coated with the structure of silicate (3) outward.
2. according to the claim 1 described pump housing, pump cover with the non-dielectric zinc chromate coated, it is characterized in that: non-dielectric zinc chrome salt solution (2) coated thickness is in the 0.02-0.05mm scope, and the thickness of silicate solutions (3) is in the 0.01-0.03mm scope.
3. according to the claim 1 described pump housing, pump cover with the non-dielectric zinc chromate coated, it is characterized in that: non-dielectric zinc chrome salt solution (2) is of a size of 0.001-0.003mm flakey zinc-aluminium and CrO for containing
3The high dispersive mixed solution.
4. according to the claim 1 described pump housing, pump cover with the non-dielectric zinc chromate coated, it is characterized in that: cylinder iron described or Cast Steel is made the pump of the pump housing, pump cover, can be peripheral pump, centrifugal pump, multistage centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047725 CN2898385Y (en) | 2005-12-20 | 2005-12-20 | Non-dielectric zinc chrominum salt coated pump body and cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047725 CN2898385Y (en) | 2005-12-20 | 2005-12-20 | Non-dielectric zinc chrominum salt coated pump body and cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898385Y true CN2898385Y (en) | 2007-05-09 |
Family
ID=38073719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047725 Expired - Fee Related CN2898385Y (en) | 2005-12-20 | 2005-12-20 | Non-dielectric zinc chrominum salt coated pump body and cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898385Y (en) |
-
2005
- 2005-12-20 CN CN 200520047725 patent/CN2898385Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20131220 |