CN104404438A - Novel technology for plunger thermal spraying and special manufacturing line - Google Patents
Novel technology for plunger thermal spraying and special manufacturing line Download PDFInfo
- Publication number
- CN104404438A CN104404438A CN201410692220.5A CN201410692220A CN104404438A CN 104404438 A CN104404438 A CN 104404438A CN 201410692220 A CN201410692220 A CN 201410692220A CN 104404438 A CN104404438 A CN 104404438A
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- CN
- China
- Prior art keywords
- plunger
- thermal spraying
- novel technology
- shot
- grinding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to a novel technology for plunger thermal spraying and a special manufacturing line in order to realize plunger manufacture with high quality and low cost. Particularly, the novel technology is implemented according to the following steps: shot-blasting treating, preheating treating, thermal spraying, thermal remelting, turning, and grinding, so as to obtain finished products. The special manufacturing line for realizing the novel technology is formed by sequentially connecting the following equipment: a shot-blasting treatment device, a resistance furnace, a thermal spraying device, a super-frequency induction heating device, a turning lathe and a grinding device. The novel technology aims to solve the defects of the conventional technology for plunger thermal spraying, is designed from the technological process and the technological equipment for inventing the technological method and process which can guarantee the spraying quality and can carry out flow line manufacturing, realizes mass manufacturing, improves the work environment, reduces labor intensity and greatly improves production benefits.
Description
Technical field
The present invention relates to Workpiece coating technique, be related specifically to the production technique of the core component plunger in reciprocating pump hydraulic-end.
Background technology
The reciprocation pump at home and abroad field such as each elephant, mine, chemical industry, electric power all has and widely applies.And the fluid end overwhelming majority of reciprocation pump adopts plunger combination structure, therefore, the production of plunger is also the key link that reciprocation pump is produced.
Because plunger is reciprocating at the fluid end of reciprocation pump, and packing seal is formed between combining and rubs, simultaneously due to long-term and medium contact, require that plunger has wear resistance and solidity to corrosion, if adopt the material of more high anti-corrosion and wear resistance to make plunger, manufacturing cost will be very high, and simultaneously plunger is as reciprocation pump consumable accessory, the increasing of cost of manufacture this will improve the running cost of pump complete machine.
At present, what adopt both at home and abroad is by hot-spraying techniques on common material, by different-alloy powder spraying at plunger surface, by following process, to achieve the above object.Its technique is; Rough turn plunger is shaped, and---------------oxygen, acetylene torch remelting---roughly grind cylindrical---fine cylindrical---other operations---finished product to thermal spraying alloy powder to angle grinding machine manual grinding for oxygen, acetylene torch preheating on plucking surface.
The shortcoming of this technique is;
Technical process manual operations link is too much, too high to the state of the art degree of dependence of operator, and the fluctuation of process parameter control is comparatively large, and coating quality poor stability, procedures production efficiency is lower simultaneously.
Summary of the invention
The object of the invention is to design a kind of plunger thermospray novel process and special production line, to realize high quality and the low cost of plunger manufacture.
Specifically, plunger thermospray novel process, it is implemented in accordance with the following steps: Shot Blasting-thermal pretreatment-thermospray-thermogravimetric melts-turning-grinding-finished product.
In the present invention, Shot Blasting realizes the alligatoring of plunger spray-coating surface; Thermal pretreatment technique adopts the preheating of resistance furnace isothermal; Thermogravimetric process of smelting adopts ultrasonic frequency induction heating.
Realize the special production line of described novel process, it is linked in sequence by following equipment to form: shot-treating apparatus-resistance furnace-hot spray apparatus-ultrasonic frequency induction heating device-turning lathe-grinding attachment.
The present invention is directed to the deficiency of traditional plunger hot-spraying techniques; design from technical process and tooling; invent and both can ensure coating quality; processing method and the flow process of production line balance can be carried out again; accomplish scale production; improve work situation, lower labour intensity, increase substantially productivity effect.
Innovative point of the present invention mainly comprises:
(1) by the roughening process of plunger spray-coating surface, by the thick knife mark of car+angle grinding machine manual grinding, invent as Shot Blasting, ensure that the alligatoring face of plunger surface, finer and closely woven evenly; Improve the bonding strength of sprayed coating, operation production organizational mode becomes batch machining from single piece work simultaneously.
(2) by the technique of preheating before plunger spraying, by Manual flame heating+artificial visually examine temperature, invent as the preheating of resistance furnace isothermal, temperature control tolerance range is accurate, and the homogeneity of plunger surface temperature is effectively ensured.
(3) by the remelting processing of sprayed coating, heated by artificial flame, invent as ultrasonic frequency induction heating.Coating is heated evenly, temperature precise control, and melting is fully organized finer and close.
(4) method of the plunger turning of spraying, remelting completion is replaced corase grind operation.
Accompanying drawing explanation
Figure is present invention process schema.
Embodiment
Production line main flow of the present invention: the plunger frock batch through roughing is loaded shot-blasting machine, Shot Blasting is carried out by special process, after completion, box trolley resistance furnace is loaded again with frock batch, carry out isothermal thermal pretreatment, after control temperature, enter coated with hard alloy operation, after reaching coating thickness size, enter ultrasonic frequency induction heating remelting operation.So far, plunger completes the production of a technical process.
Production line main flow principle is sketched:
The roughness required for process control parameter is obtained through the plunger surface of ball blast, sprayed coating and matrix is made to be provided with good bonding strength, enter into and reserve in the stove of temperature in advance, carry out isothermal processes, object is to obtain even, certain initial temperature (preventing sprayed coating from crossing thermal expansion and the coating segregation produced), enter spraying process again, guarantee that sprayed coating has good quality, carry out re melting process subsequently, its objective is to allow not molten powdered alloy fully melt, unexpectedly reaching wear-resisting, anti-corrosion technical requirements.
The feature of such scheme is:
1, by the enforcement of object of invention, plunger is produced to the layout of rationally carrying out technical process and equipment, reach the object requirement that pipelining is produced.
2, by the processing of each branch operation by single-piece processes, be converted into the demand of batchprocess processing, thus significantly improve operation make efficiency.
3, lower labour intensity, reduce the degree of dependence to personnel, make the process parameter control of each operation obtain guarantee.Decrease the pollution of operation simultaneously and improve Working environment.
Claims (3)
1. plunger thermospray novel process, is characterized in that implementing in accordance with the following steps: Shot Blasting-thermal pretreatment-thermospray-thermogravimetric melts-turning-grinding-finished product.
2. plunger thermospray novel process according to claim 1, is characterized in that: Shot Blasting realizes the alligatoring of plunger spray-coating surface; Thermal pretreatment technique adopts the preheating of resistance furnace isothermal; Thermogravimetric process of smelting adopts ultrasonic frequency induction heating.
3. realize the special production line of novel process described in claim 1 or 2, it is characterized in that is linked in sequence by following equipment is formed: shot-treating apparatus-resistance furnace-hot spray apparatus-ultrasonic frequency induction heating device-turning lathe-grinding attachment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410692220.5A CN104404438A (en) | 2014-11-27 | 2014-11-27 | Novel technology for plunger thermal spraying and special manufacturing line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410692220.5A CN104404438A (en) | 2014-11-27 | 2014-11-27 | Novel technology for plunger thermal spraying and special manufacturing line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104404438A true CN104404438A (en) | 2015-03-11 |
Family
ID=52642100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410692220.5A Pending CN104404438A (en) | 2014-11-27 | 2014-11-27 | Novel technology for plunger thermal spraying and special manufacturing line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104404438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798538A (en) * | 2017-04-28 | 2018-11-13 | 垦利县金秀石油机械有限公司 | A kind of wear-resistant spray welding oil pumping rod of novel anticorrosion |
-
2014
- 2014-11-27 CN CN201410692220.5A patent/CN104404438A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798538A (en) * | 2017-04-28 | 2018-11-13 | 垦利县金秀石油机械有限公司 | A kind of wear-resistant spray welding oil pumping rod of novel anticorrosion |
| CN108798538B (en) * | 2017-04-28 | 2024-04-26 | 东营市垦利区金秀石油机械有限公司 | Novel anti-corrosion wear-resistant spray welding sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |