CN113958499A - Preparation method of wear-resistant screw rotor for screw pump - Google Patents
Preparation method of wear-resistant screw rotor for screw pump Download PDFInfo
- Publication number
- CN113958499A CN113958499A CN202111147993.1A CN202111147993A CN113958499A CN 113958499 A CN113958499 A CN 113958499A CN 202111147993 A CN202111147993 A CN 202111147993A CN 113958499 A CN113958499 A CN 113958499A
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- China
- Prior art keywords
- screw
- screw rotor
- wear
- rotor
- resistant
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
A preparation method of a wear-resistant screw rotor for a screw pump comprises the following process flows: rough machining, finish machining, surface pretreatment, surface roughening, preheating, primer spraying, post treatment, inspection and warehousing; according to the invention, the DG.Cr3C2-NiCr layer is sprayed on the surface of the screw rotor, so that the wear resistance of the screw rotor is greatly improved, the service life of the screw rotor is prolonged, and the production cost of an enterprise is reduced.
Description
Technical Field
The invention relates to the technical field of screw pumps, in particular to a preparation method of a wear-resistant screw rotor for a screw pump.
Background
A screw pump is a positive displacement rotary pump which sucks and discharges a liquid by a change in the volume of a sealed chamber formed by a screw and a liner. The screw pumps are divided into single screw pumps, double, triple and quintuple screw pumps according to the number of screws. At present, the screw rotors of the existing screw pumps are all made of 316L stainless steel, the abrasion resistance degree is general, the screw rotors of the screw pumps are easy to damage, the service life is short, the replacement frequency of the screw rotors is high, and the production cost is greatly improved; how to improve the wear resistance of the screw rotor is a technical problem which is difficult to solve for a long time.
In view of the above, a method of manufacturing a wear-resistant screw rotor for a screw pump has been developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a preparation method of a wear-resistant screw rotor for a screw pump, wherein a DG.Cr3C2-NiCr layer is sprayed on the surface of the screw rotor, so that the wear resistance of the screw rotor is greatly improved, the service life of the screw rotor is prolonged, and the production cost of an enterprise is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme: a preparation method of a wear-resistant screw rotor for a screw pump is disclosed, wherein the wear-resistant screw rotor for the screw pump is prepared from the following components in parts by weight: the screw rod, the connecting seat and the wear-resistant layer; the front end of the screw is provided with a connecting seat, the screw and the connecting seat are integrally formed to form a screw rotor, and the periphery of the screw is provided with a wear-resistant layer;
the preparation method of the wear-resistant screw rotor for the screw pump comprises the following process flows of: rough machining, finish machining, surface pretreatment, surface roughening, preheating, primer spraying, post treatment, inspection and warehousing.
Rough machining: processing and forming a stainless steel bar;
finish machining: processing the formed bar into a screw rotor with the specified size;
surface pretreatment: removing oil stains on the surface of the screw rotor;
surface roughening: removing residual dirt on the surface of the screw rotor by adopting a sand blasting method to roughen the surface of the screw rotor;
preheating: placing the roughened screw rotor into a drying room for preheating at 220-300 ℃;
primer spraying: spraying primer on the preheated screw rotor;
spraying: carrying out DG.Cr3C2-NiCr spraying on the screw rotor by adopting plasma spraying equipment;
and (3) post-processing: polishing and grinding the sprayed screw rotor;
and (6) inspection and warehousing: and (5) inspecting the screw rotor after the post-treatment, and packaging and warehousing the screw rotor which is qualified through inspection.
The invention has the beneficial effects that: according to the invention, the DG.Cr3C2-NiCr layer is sprayed on the surface of the screw rotor, so that the wear resistance of the screw rotor is greatly improved, the service life of the screw rotor is prolonged, and the production cost of an enterprise is reduced; the present invention has not been described in detail in the prior art.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the assembly structure;
FIG. 2 is a process flow diagram;
in the figure: screw rod 1, connecting seat 2, wearing layer 3.
Detailed Description
The present invention will be described in further detail with reference to the following examples and embodiments:
example 1
The front end of the screw 1 is provided with a connecting seat 2, the screw 1 and the connecting seat 2 are integrally formed to form a screw rotor, and the periphery of the screw 1 is provided with a wear-resistant layer 3;
the preparation method of the wear-resistant screw rotor for the screw pump comprises the following process flows of: rough machining, finish machining, surface pretreatment, surface roughening, preheating, primer spraying, post treatment, inspection and warehousing.
Example 2
Rough machining: processing and forming a stainless steel bar;
finish machining: processing the formed bar into a screw rotor with the specified size;
surface pretreatment: removing oil stains on the surface of the screw rotor;
surface roughening: removing residual dirt on the surface of the screw rotor by adopting a sand blasting method to roughen the surface of the screw rotor;
preheating: placing the roughened screw rotor into a drying room for preheating at 220-300 ℃;
primer spraying: spraying primer on the preheated screw rotor;
spraying: carrying out DG.Cr3C2-NiCr spraying on the screw rotor by adopting plasma spraying equipment;
and (3) post-processing: polishing and grinding the sprayed screw rotor;
and (6) inspection and warehousing: and (5) inspecting the screw rotor after the post-treatment, and packaging and warehousing the screw rotor which is qualified through inspection.
Claims (2)
1. A preparation method of a wear-resistant screw rotor for a screw pump is disclosed, wherein the wear-resistant screw rotor for the screw pump is prepared from the following components in parts by weight: the screw rod (1), the connecting seat (2) and the wear-resistant layer (3); the method is characterized in that: the front end of the screw (1) is provided with a connecting seat (2), the screw (1) and the connecting seat (2) are integrally formed to form a screw rotor, and the periphery of the screw (1) is provided with a wear-resistant layer (3);
the preparation method of the wear-resistant screw rotor for the screw pump comprises the following process flows of: rough machining, finish machining, surface pretreatment, surface roughening, preheating, primer spraying, post treatment, inspection and warehousing.
2. The method of manufacturing a wear-resistant screw rotor for a screw pump according to claim 1, wherein:
rough machining: processing and forming a stainless steel bar;
finish machining: processing the formed bar into a screw rotor with the specified size;
surface pretreatment: removing oil stains on the surface of the screw rotor;
surface roughening: removing residual dirt on the surface of the screw rotor by adopting a sand blasting method to roughen the surface of the screw rotor;
preheating: placing the roughened screw rotor into a drying room for preheating at 220-300 ℃;
primer spraying: spraying primer on the preheated screw rotor;
spraying: carrying out DG.Cr3C2-NiCr spraying on the screw rotor by adopting plasma spraying equipment;
and (3) post-processing: polishing and grinding the sprayed screw rotor;
and (6) inspection and warehousing: and (5) inspecting the screw rotor after the post-treatment, and packaging and warehousing the screw rotor which is qualified through inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147993.1A CN113958499A (en) | 2021-09-29 | 2021-09-29 | Preparation method of wear-resistant screw rotor for screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147993.1A CN113958499A (en) | 2021-09-29 | 2021-09-29 | Preparation method of wear-resistant screw rotor for screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113958499A true CN113958499A (en) | 2022-01-21 |
Family
ID=79463032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111147993.1A Withdrawn CN113958499A (en) | 2021-09-29 | 2021-09-29 | Preparation method of wear-resistant screw rotor for screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113958499A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201728A (en) * | 2022-12-22 | 2023-06-02 | 华创机器人制造有限公司 | Special screw pump for submersible screw pump oil extraction machine and manufacturing method |
-
2021
- 2021-09-29 CN CN202111147993.1A patent/CN113958499A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201728A (en) * | 2022-12-22 | 2023-06-02 | 华创机器人制造有限公司 | Special screw pump for submersible screw pump oil extraction machine and manufacturing method |
| CN116201728B (en) * | 2022-12-22 | 2024-02-13 | 华创机器人制造有限公司 | Special screw pump for submersible screw pump oil extraction machine and manufacturing method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220121 |