CN111889966B - Method for processing flange for water pump - Google Patents
Method for processing flange for water pump Download PDFInfo
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- CN111889966B CN111889966B CN202010645094.3A CN202010645094A CN111889966B CN 111889966 B CN111889966 B CN 111889966B CN 202010645094 A CN202010645094 A CN 202010645094A CN 111889966 B CN111889966 B CN 111889966B
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- Prior art keywords
- flange
- solution
- acid
- processing method
- flange blank
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/086—Iron or steel solutions containing HF
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a method for processing a flange for a water pump, which belongs to the technical field of flange processing and comprises the specific processing steps of firstly introducing raw materials into a high-temperature heating furnace for heating, wherein the high temperature is 1398-. According to the invention, the solution is introduced into the die, and the die groove is cooled in the introduction process, so that the solution is extruded once every twenty percent of solidification, thereby better extruding the air in the flange to be formed, and in the solidification process, the volume of the whole solution is concentrated and reduced, thereby reducing the influence of the air on the flange, prolonging the service life of the flange, simultaneously improving the sealing performance of the butt joint position of a water pump and a pipeline, and improving the utilization rate.
Description
Technical Field
The invention relates to the technical field of flange processing, in particular to a processing method of a flange for a water pump.
Background
The water pump is a machine for conveying liquid or pressurizing liquid, which transfers the mechanical energy of a prime motor or other external energy to the liquid to increase the energy of the liquid, and is mainly used for conveying the liquid including water, oil, acid-base liquid, emulsion, suspoemulsion, liquid metal and the like, and when the water pump is connected with a pipeline, a flange is often used.
However, in the process of processing and preparing the existing flange, air is easily clamped in the flange, the service life of the flange is seriously influenced by the air, meanwhile, the sealing performance of a butt joint position of a water pump and a pipeline is reduced, so that the utilization rate is reduced, the existing flange generally needs to be subjected to an acid pickling process in the processing process, and in the acid pickling obtaining process, the consumption of an acid pickling solution is large, and the cost is increased to a certain extent.
Disclosure of Invention
The invention aims to: in order to solve the problems that air is easily clamped in the flange in the processing and preparation processes of the existing flange, the service life of the flange is seriously influenced by the air, meanwhile, the sealing performance of a butt joint position of a water pump and a pipeline is reduced, and therefore the utilization rate is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a processing method of a flange for a water pump comprises the following specific processing steps,
firstly, introducing the raw materials into a high-temperature heating furnace for heating at 1398-;
secondly, introducing the solution into the interior of a mold, cooling a mold groove in the introduction process to enable the solution to be solidified by twenty percent, pressurizing the solution by using a die machine, extruding air stored in the solution, cooling the solution in the mold, extruding the solution until the solution is solidified and molded, and taking out the mold to obtain a flange blank A;
thirdly, performing punching and punching treatment on the obtained flange blank by using a punching machine to obtain a flange blank B provided with a butt joint hole;
polishing the surface of the flange blank and the inner side of the butt joint hole by using a polisher, and flushing the polishing position by using water flow in the polishing process to play a role of cooling so as to obtain a flange blank C;
placing the flange blank C in an acid washing tank to carry out acid washing passivation treatment, adding a corrosion inhibitor into the acid washing tank, then spraying the surface of the flange blank C by using a spraying machine to enable an acid washing solution to be uniformly laid on the surface of the flange blank C, standing for 20-30 minutes after laying is finished, then washing the redundant acid washing solution on the surface of the flange blank C by using washing water, and then drying the acid-washed and passivated flange blank C by using a drying machine to obtain a flange blank D;
and step six, coating a film on the surface of the flange blank D by using a vacuum coating machine, and polishing the coated flange blank D by using the polisher again after the film coating is finished until the surface of the flange blank D is smooth and bright, thereby obtaining the flange.
Preferably, according to step five, the corrosion inhibitor is one of chromate, nitrite, silicate, molybdate, tungstate, polyphosphate, zinc salt, phosphinocarboxylic acid, thiobenzothiazole, benzotriazole and sulfonated lignin.
Preferably, according to step five, the acidic solution in the pickling solution consists of one or more of sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, hydrofluoric acid.
Preferably, according to the fifth step, during the acid pickling passivation treatment, the acid pickling solution is heated until the temperature of the acid pickling solution is kept at 40-45 ℃.
Preferably, according to the fourth step, the water flow for flushing is recycled by the water treatment circulating system, so that the water flow for flushing can be reused.
Preferably, according to step two, for every twenty percent of the solution set, the press machine presses down on the solution until the solution sets to shape.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the solution is introduced into the die, and the die groove is cooled in the introduction process, so that the solution is extruded once every twenty percent of solidification, thereby better extruding the air in the flange to be formed, and in the solidification process, the volume of the whole solution is concentrated and reduced, thereby reducing the influence of the air on the flange, prolonging the service life of the flange, simultaneously improving the sealing performance of the butt joint position of a water pump and a pipeline, and improving the utilization rate;
2. according to the invention, the surface of the flange blank C is sprayed by using the spraying machine, so that the pickling solution is uniformly laid on the surface of the flange blank C, and the laying is completed and then the laying is kept still for 20-30 minutes, thereby reducing the consumption of the acid solution by using a spraying method, reducing the cost and improving the utilization rate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A processing method of a flange for a water pump comprises the following specific processing steps,
firstly, introducing the raw materials into a high-temperature heating furnace for heating at 1398-;
secondly, introducing the solution into the interior of a mold, cooling a mold groove in the introduction process to enable the solution to be solidified by twenty percent, pressurizing the solution by using a die machine, extruding air stored in the solution, cooling the solution in the mold, extruding the solution until the solution is solidified and molded, and taking out the mold to obtain a flange blank A;
thirdly, performing punching and punching treatment on the obtained flange blank by using a punching machine to obtain a flange blank B provided with a butt joint hole;
polishing the surface of the flange blank and the inner side of the butt joint hole by using a polisher, and flushing the polishing position by using water flow in the polishing process to play a role of cooling so as to obtain a flange blank C;
placing the flange blank C in an acid washing tank to carry out acid washing passivation treatment, adding a corrosion inhibitor into the acid washing tank, then spraying the surface of the flange blank C by using a spraying machine to enable an acid washing solution to be uniformly laid on the surface of the flange blank C, standing for 20-30 minutes after laying is finished, then washing the redundant acid washing solution on the surface of the flange blank C by using washing water, and then drying the acid-washed and passivated flange blank C by using a drying machine to obtain a flange blank D;
and step six, coating a film on the surface of the flange blank D by using a vacuum coating machine, and polishing the coated flange blank D by using the polisher again after the film coating is finished until the surface of the flange blank D is smooth and bright, thereby obtaining the flange.
According to the invention, the surface of the flange blank C is sprayed by using the spraying machine, so that the pickling solution is uniformly laid on the surface of the flange blank C, and the laying is completed and then the laying is kept still for 20-30 minutes, thereby reducing the consumption of the acid solution by using a spraying method, reducing the cost and improving the utilization rate.
Example 1
According to a preferred embodiment of the present invention, in step five, the acid solution in the pickling solution is one of sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, hydrofluoric acid and mixed acid, and the acid solution and the oxide of iron such as scale, rust and the like on the surface of the flange are chemically reacted by the pickling solution to form salts, which are dissolved in the acid solution and removed, thereby improving the working efficiency.
Example 2
According to the fifth step, the pickling solution is heated until the temperature of the pickling solution is kept at 40-45 ℃, so that the acidification efficiency is accelerated and the working difficulty is reduced.
Example 3
According to the fourth step, the water flow for flushing is recycled by the water treatment circulating system, so that the water flow for flushing can be reused, and the water treatment circulating system is used for filtering the water flow for flushing, so that the water flow can be recycled conveniently, and the consumption of the water flow is reduced to a certain extent.
Example 4
As a preferred embodiment of the invention, according to the fifth step, the acid solution in the pickling bath accounts for 10% -20% of the whole pickling solution, so that the acid solution is just suitable for the flange, the damage to the flange is avoided, and the pickling passivation efficiency is improved.
Example 5
According to the second step, the solution is downwards extruded by a die pressing machine once every twenty percent of the solution is solidified until the solution is solidified and formed, and the volume of the whole solution is concentrated and reduced in the solidification process, so that the influence of air on the flange is reduced, the service life of the flange is prolonged, and meanwhile, the sealing performance of the butt joint position of the water pump and the pipeline is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A processing method of a flange for a water pump is characterized by comprising the following steps: the specific processing steps comprise that,
firstly, introducing the raw materials into a high-temperature heating furnace for heating at 1398-;
secondly, introducing the solution into the interior of a mold, cooling a mold groove in the introduction process to enable the solution to be solidified by twenty percent, pressurizing the solution by using a die machine, extruding air stored in the solution, cooling the solution in the mold, extruding the solution until the solution is solidified and molded, and taking out the mold to obtain a flange blank A;
thirdly, performing punching and punching treatment on the obtained flange blank by using a punching machine to obtain a flange blank B provided with a butt joint hole;
polishing the surface of the flange blank and the inner side of the butt joint hole by using a polisher, and flushing the polishing position by using water flow in the polishing process to play a role of cooling so as to obtain a flange blank C;
placing the flange blank C in an acid washing tank to carry out acid washing passivation treatment, adding a corrosion inhibitor into the acid washing tank, then spraying the surface of the flange blank C by using a spraying machine to enable an acid washing solution to be uniformly laid on the surface of the flange blank C, standing for 20-30 minutes after laying is finished, then washing the redundant acid washing solution on the surface of the flange blank C by using washing water, and then drying the acid-washed and passivated flange blank C by using a drying machine to obtain a flange blank D;
and step six, coating a film on the surface of the flange blank D by using a vacuum coating machine, and polishing the coated flange blank D by using the polisher again after the film coating is finished until the surface of the flange blank D is smooth and bright, thereby obtaining the flange.
2. The processing method of the flange for the water pump as claimed in claim 1, wherein the processing method comprises the following steps: according to the fifth step, the corrosion inhibitor is one of chromate, nitrite, silicate, molybdate, tungstate, polyphosphate, zinc salt, phosphine carboxylic acid, sulfenyl benzothiazole, benzotriazole and sulfonated lignin.
3. The processing method of the flange for the water pump as claimed in claim 1, wherein the processing method comprises the following steps: according to the fifth step, the acid solution in the pickling solution is composed of one or more of sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, and hydrofluoric acid.
4. The processing method of the flange for the water pump as claimed in claim 1, wherein the processing method comprises the following steps: according to the fifth step, during the pickling passivation treatment, the pickling solution is heated until the temperature of the pickling solution is kept at 40-45 ℃.
5. The processing method of the flange for the water pump as claimed in claim 1, wherein the processing method comprises the following steps: and according to the fourth step, the water flow for flushing is recycled by the water treatment circulating system, so that the water flow can be reused.
6. The processing method of the flange for the water pump as claimed in claim 1, wherein the processing method comprises the following steps: according to step two, every twenty percent of the solution solidifies, the press molding machine presses down the solution until the solution solidifies and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645094.3A CN111889966B (en) | 2020-07-07 | 2020-07-07 | Method for processing flange for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645094.3A CN111889966B (en) | 2020-07-07 | 2020-07-07 | Method for processing flange for water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111889966A CN111889966A (en) | 2020-11-06 |
| CN111889966B true CN111889966B (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010645094.3A Active CN111889966B (en) | 2020-07-07 | 2020-07-07 | Method for processing flange for water pump |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983496A (en) * | 1996-03-15 | 1999-11-16 | J.A. Hermanson | Circular and oval flanged rings for connecting ducting and method of making |
| CN104759843B (en) * | 2015-03-17 | 2017-06-30 | 安徽宏杰管道制造有限公司 | A kind of flange production technology |
| CN104858624A (en) * | 2015-06-09 | 2015-08-26 | 淄博张店南光化工设备厂 | Production process of forging lap joint flange of glassed steel equipment |
| CN106319501A (en) * | 2015-07-06 | 2017-01-11 | 苏州宇力管业有限公司 | Passivation technology for stainless steel flange |
| CN106270453A (en) * | 2016-08-23 | 2017-01-04 | 张家港华日法兰有限公司 | A kind of processing method of multi-level flange |
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2020
- 2020-07-07 CN CN202010645094.3A patent/CN111889966B/en active Active
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