CN110004435A - A kind of the slush pump intermediate draw bar and production technology of chemical plating nickel-phosphorus alloy protection - Google Patents
A kind of the slush pump intermediate draw bar and production technology of chemical plating nickel-phosphorus alloy protection Download PDFInfo
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- CN110004435A CN110004435A CN201910302898.0A CN201910302898A CN110004435A CN 110004435 A CN110004435 A CN 110004435A CN 201910302898 A CN201910302898 A CN 201910302898A CN 110004435 A CN110004435 A CN 110004435A
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- draw bar
- intermediate draw
- phosphorus alloy
- chemical plating
- bar ontology
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1689—After-treatment
- C23C18/1692—Heat-treatment
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/48—Coating with alloys
- C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses the slush pump intermediate draw bar and production technology of a kind of protection of chemical plating nickel-phosphorus alloy, including intermediate draw bar ontology, hole and nickel-phosphorus alloy coating, annular offers eight holes at an end disc of the intermediate draw bar ontology, and is bolt hole；Production technology includes the following steps, step 1, rough forging；Step 2, it is rough turn；Step 3, heat treatment；Step 4, smart car；Step 5, drilling；Step 6, fine grinding；Step 7, chemical plating；Step 8, typewriting；Step 9, packaging/storage；The invention simplifies production procedure, improves efficiency: the characteristic that do not grind after being plated using chemical plating nickel-phosphorus alloy eliminates the process that grinding is carried out on hard chromium layers；It avoids the electroplating hard chromium process using high pollution: being polluted during chemical plating nickel-phosphorus alloy plating slightly, it is fully controllable；The invention product possesses better service life: chemical plating nickel-phosphorus alloy wear-resisting property after appropriate Surface heat-treatent is better than plating hard chrome.
Description
Technical field
The present invention relates to slush pump intermediate draw bar production technical field, specially a kind of mud of chemical plating nickel-phosphorus alloy protection
Stock pump intermediate draw bar and production technology.
Background technique
The Core equipment that mud recycles when slush pump is oil drilling well workover.Slush pump intermediate draw bar (or Jie's bar) is to connect
The crucial stressed member for connecing power end crosshead Yu fluid end piston rod does the reciprocal fortune of high speed under closely the wrapping of combination oil seal
It is dynamic, it is one of vulnerable part important on slush pump, working life directly affects the comprehensive performance of slush pump.
The manufacturing process of current slush pump intermediate draw bar is as follows:
1, rough forging；2, rough turn；3, heat treatment-is quenched；4, smart car；5, it drills；6, mill before plating；7, (plating is hard for plating
Chromium)；8, it polishes and modifies after plating；9, it is refined after plating；10, identification information is beaten, is survived, is packed.
Current technique has the following disadvantages and deficiency:
1, Hard Chromium Plating Technology largely uses chromic anhydride, and the positive 6 valence pollution of chromium of high oxidative is extremely strong, many countries and regions
Strictly limited use；
2, it plates on back stay throughout plating burr, it is necessary to carry out polishing finishing and fine grinding again on the coating of HRC60-62,
It is time-consuming and laborious.
Above-mentioned current process there are aiming at the problem that, design a kind of slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection
And production technology is very necessary.
Summary of the invention
The slush pump intermediate draw bar and production technology protected the purpose of the present invention is to provide a kind of chemical plating nickel-phosphorus alloy,
To solve the problems mentioned in the above background technology.
In order to solve the above technical problem, the present invention provides following technical solutions: a kind of protection of chemical plating nickel-phosphorus alloy
Slush pump intermediate draw bar, including intermediate draw bar ontology, hole and nickel-phosphorus alloy coating, at an end disc of the intermediate draw bar ontology
Annular offers eight holes, and is bolt hole, and the other end center of the intermediate draw bar ontology offers hole, and is jackscrew
The equal chemistry in outer surface in hole, the intermediate draw bar ontology is coated with nickel-phosphorus alloy coating.
A kind of production technology of the slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection, includes the following steps, step 1,
Rough forging；Step 2, it is rough turn；Step 3, heat treatment；Step 4, smart car；Step 5, drilling；Step 6, fine grinding；Step
Seven, chemical plating；Step 8, typewriting；Step 9, packaging/storage；
Wherein in the above step 1, selecting medium carbon alloy steel is raw material, completes intermediate draw bar hair according to industry standard
The forging of base, normalized treatment after forging；
Wherein in above-mentioned steps two, length, vehicle outer diameter, made allowance 3mm are taken；
Wherein in above-mentioned steps three, by the quenched HB240-276 of green body；
Wherein in above-mentioned steps four, in addition to intermediate draw bar body diameter, other according to drawing dimensional accuracy vehicle at；
Wherein in above-mentioned steps five, terminal pad bolt hole and small end top wire hole are bored, and remove flash removed；
Wherein in above-mentioned steps six, diameter is survived according to drawing intermediate draw bar ontology and subtracts 0.12-0.20mm mill
At outer circle, finish Ra0.4；
Wherein in above-mentioned steps seven, chemical plating the following steps are included:
1) plating solution is prepared according to following standard:
2) intermediate draw bar ontology electrochemical deoiling: is cleaned using 50-80 DEG C of metal cleaner；
3) hot water cleans: being cleaned 2 minutes with 70-80 DEG C of hot water again；
4) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
5) electrolytic cleaned: 50-80 DEG C of electrolytic cleaning solution is used；Periodical reversal current 2-3A/dm2；Anode --- yin
Pole --- anode totally 3 minutes；
6) hot water cleans: being cleaned 2 minutes with 70-80 DEG C of hot water again；
7) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
8) it activates: being impregnated at room temperature using activating solution 1 minute；
9) hot water cleans: being cleaned 1 minute with 70-80 DEG C of hot water again；
10) preheating is embathed: being impregnated 3 minutes using 70-80 DEG C of deionized water；
11) enter slot chemical plating: tune plating solution pH value to 3.5-4.0, the at a temperature of chemistry by intermediate draw bar ontology at 85-95 DEG C
Plating 6-8 hours；
12) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
13) plate after be heat-treated: 350-400 DEG C at a temperature of be heat-treated 1-2 hours；
Wherein in above-mentioned steps eight, the product identifications such as figure number are stamped as requested on the intermediate draw bar ontology after plating；
Wherein in above-mentioned steps nine, intermediate draw bar ontology is packed and stored, completes production procedure.
According to the above technical scheme, eight holes that annular opens up at an end disc of the intermediate draw bar ontology are bolt
Hole, and the hole that other end center opens up is top wire hole.
According to the above technical scheme, in the step 1, must not exist be mingled with, the forging defects such as crackle, stomata.
According to the above technical scheme, in the step 3, quenched HB240-276 first quenches metal, then carries out
High tempering makes its Brinell hardness reach 240-276.
According to the above technical scheme, the step 7 11) in, intermediate draw bar ontology offers one end of bolt hole when plating
Upwards, adjustment hanger makes intermediate draw bar ontology keep vertical state in the plating solution, guarantees on the external cylindrical surface of intermediate draw bar ontology
On not upward dust fall face.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being:
1. production procedure simplifies, production efficiency is improved: field distribution effect is not present in chemical plating, not by workpiece shapes shadow
It rings, each section plating is thick consistent；And the surface smoothness for not changing parent metal, without carrying out secondary grinding after plating.Mill
Cutting is carried out on parent metal before plating, and Brinell hardness is only HB260, and processing efficiency is significantly larger than the mill to hard chromium layers
It cuts；
2. reliable performance: being heat-treated after plating, nickel-phosphorus alloy coating hardness is up to HV1300 or more, and wear-resisting property is prominent
Out, it is very suitable to the operating condition of slush pump intermediate draw bar；
3. clean and environmental protection: avoiding the electroplating hard chromium process using high pollution, polluted during chemical plating nickel-phosphorus alloy plating
Slightly, fully controllable.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is overall structure side view of the invention.
Fig. 3 is process flow chart of the invention.
In figure: 1, intermediate draw bar ontology；2, hole；3, nickel-phosphorus alloy coating.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: among a kind of slush pump of chemical plating nickel-phosphorus alloy protection
Pull rod, including intermediate draw bar ontology 1, hole 2 and nickel-phosphorus alloy coating 3, annular offers at an end disc of intermediate draw bar ontology 1
Eight holes 2, and be bolt hole, the other end center of intermediate draw bar ontology 1 offers hole 2, and is top wire hole, intermediate draw bar sheet
The equal chemistry in the outer surface of body 1 is coated with nickel-phosphorus alloy coating 3.
Referring to Fig. 3, the present invention provides a kind of technical solution: a kind of slush pump centre drawing of chemical plating nickel-phosphorus alloy protection
The production technology of bar, includes the following steps, step 1, rough forging；Step 2, it is rough turn；Step 3, heat treatment；Step 4, essence
Vehicle；Step 5, drilling；Step 6, fine grinding；Step 7, chemical plating；Step 8, typewriting；Step 9, packaging/storage；
Wherein in the above step 1, selecting medium carbon alloy steel is raw material, completes cylinder liner blank according to industry standard
Forging, normalized treatment after forging, must not exist be mingled with, the forging defects such as crackle, stomata；
Wherein in above-mentioned steps two, length, vehicle outer diameter, made allowance 3mm are taken；
Wherein in above-mentioned steps three, green body is first quenched, then carry out high tempering, reach its Brinell hardness
240-276；
Wherein in above-mentioned steps four, in addition to 1 outer diameter of intermediate draw bar ontology, other according to drawing dimensional accuracy vehicle at；
Wherein in above-mentioned steps five, terminal pad bolt hole and small end top wire hole are bored, and remove flash removed；
Wherein in above-mentioned steps six, diameter is survived according to drawing intermediate draw bar ontology 1 and subtracts 0.12-0.20mm mill
At outer circle, finish Ra0.4；
Wherein in above-mentioned steps seven, chemical plating the following steps are included:
1) plating solution is prepared according to following standard:
2) intermediate draw bar ontology 1 electrochemical deoiling: is cleaned using 50-80 DEG C of metal cleaner；
3) hot water cleans: being cleaned 2 minutes with 70-80 DEG C of hot water again；
4) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
5) electrolytic cleaned: 50-80 DEG C of electrolytic cleaning solution is used；Periodical reversal current 2-3A/dm2；Anode --- yin
Pole --- anode totally 3 minutes；
6) hot water cleans: being cleaned 2 minutes with 70-80 DEG C of hot water again；
7) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
8) it activates: being impregnated at room temperature using activating solution 1 minute；
9) hot water cleans: being cleaned 1 minute with 70-80 DEG C of hot water again；
10) preheating is embathed: being impregnated 3 minutes using 70-80 DEG C of deionized water；
11) enter slot chemical plating: adjusting plating solution pH value to 3.5-4.0, by intermediate draw bar ontology 1 85-95 DEG C at a temperature of
Learn plating 6-8 hour, when plating intermediate draw bar ontology 1 offer bolt hole one end it is upward, adjusting hanger makes intermediate draw bar ontology 1
Vertical state is kept in the plating solution, guarantees do not have upward dust fall face on the external cylindrical surface of intermediate draw bar ontology 1；
12) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
13) plate after be heat-treated: 350-400 DEG C at a temperature of be heat-treated 1-2 hours；
Wherein in above-mentioned steps eight, the product identifications such as figure number are stamped as requested on the intermediate draw bar ontology 1 after plating；
Wherein in above-mentioned steps nine, intermediate draw bar ontology 1 is packed and stored, completes production procedure.
According to the above technical scheme, eight holes 2 that annular opens up at an end disc of intermediate draw bar ontology 1 are bolt
Hole, and the hole 2 that other end center opens up is top wire hole.
In conclusion the advantages of invention is, 1. process simplifications provide efficiency: after chemical plating nickel-phosphorus alloy plating
The characteristic that do not grind eliminates the process that grinding is carried out on hard chromium layers；2. avoiding the electroplating hard chromium process using high pollution:
It is polluted during chemical plating nickel-phosphorus alloy plating slightly, it is fully controllable；3. better service life: chemical plating nickel-phosphorus alloy passes through
Wear-resisting property is better than plating hard chrome after appropriate Surface heat-treatent.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection, including intermediate draw bar ontology (1), hole (2) and nickel phosphorus
Alloy layer (3), it is characterised in that: annular offers eight holes (2) at an end disc of the intermediate draw bar ontology (1), and
It is bolt hole, the other end center of the intermediate draw bar ontology (1) offers hole (2), and is top wire hole, the intermediate draw bar
The equal chemistry in outer surface of ontology (1) is coated with nickel-phosphorus alloy coating (3).
2. a kind of production technology of the slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection, includes the following steps, step 1, forges
Make blank；Step 2, it is rough turn；Step 3, heat treatment；Step 4, smart car；Step 5, drilling；Step 6, fine grinding；Step 7,
Chemical plating；Step 8, typewriting；Step 9, packaging/storage；It is characterized by:
Wherein in the above step 1, selecting medium carbon alloy steel is raw material, completes intermediate draw bar blank according to industry standard
Forging, normalized treatment after forging；
Wherein in above-mentioned steps two, length, vehicle outer diameter, made allowance 3mm are taken；
Wherein in above-mentioned steps three, by the quenched HB240-276 of green body；
Wherein in above-mentioned steps four, in addition to intermediate draw bar ontology (1) outer diameter, other according to drawing dimensional accuracy vehicle at；
Wherein in above-mentioned steps five, terminal pad bolt hole and small end top wire hole are bored, and remove flash removed；
Wherein in above-mentioned steps six, diameter is survived according to drawing intermediate draw bar ontology (1) subtract 0.12-0.20mm and wear into
Outer circle, finish Ra0.4；
Wherein in above-mentioned steps seven, chemical plating the following steps are included:
1) plating solution is prepared according to following standard:
2) intermediate draw bar ontology (1) electrochemical deoiling: is cleaned using 50-80 DEG C of metal cleaner；
3) hot water cleans: being cleaned 2 minutes with 70-80 DEG C of hot water again；
4) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
5) electrolytic cleaned: 50-80 DEG C of electrolytic cleaning solution is used；Periodical reversal current 2-3A/dm2；Anode --- cathode --- sun
Extremely totally 3 minutes；
6) hot water cleans: being cleaned 2 minutes with 70-80 DEG C of hot water again；
7) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
8) it activates: being impregnated at room temperature using activating solution 1 minute；
9) hot water cleans: being cleaned 1 minute with 70-80 DEG C of hot water again；
10) preheating is embathed: being impregnated 3 minutes using 70-80 DEG C of deionized water；
11) enter slot chemical plating: tune plating solution pH value to 3.5-4.0, the at a temperature of chemistry by intermediate draw bar ontology (1) at 85-95 DEG C
Plating 6-8 hours；
12) cold water wash: at room temperature second adverse current rinsing or hydro-peening 2 minutes；
13) plate after be heat-treated: 350-400 DEG C at a temperature of be heat-treated 1-2 hours；
Wherein in above-mentioned steps eight, the product identifications such as figure number are stamped as requested on the intermediate draw bar ontology (1) after plating；
Wherein in above-mentioned steps nine, intermediate draw bar ontology (1) is packed and stored, completes production procedure.
3. a kind of slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection according to claim 1, it is characterised in that: institute
To state eight holes (2) that annular at an end disc of intermediate draw bar ontology (1) opens up be bolt hole, and other end center opens up
Hole (2) is top wire hole.
4. a kind of production technology of the slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection according to claim 2,
Be characterized in that: in the step 1, must not exist be mingled with, the forging defects such as crackle, stomata.
5. a kind of production technology of the slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection according to claim 2,
Be characterized in that: in the step 3, quenched HB240-276 first quenches metal, then carries out high tempering, makes its Bu Shi
Hardness reaches 240-276.
6. a kind of production technology of the slush pump intermediate draw bar of chemical plating nickel-phosphorus alloy protection according to claim 2,
Be characterized in that: the step 7 11) in, when plating intermediate draw bar ontology (1) offer bolt hole one end it is upward, adjust hanger
So that intermediate draw bar ontology (1) is kept vertical state in the plating solution, guarantee on the external cylindrical surface of intermediate draw bar ontology (1) not to
On dust fall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302898.0A CN110004435A (en) | 2019-04-16 | 2019-04-16 | A kind of the slush pump intermediate draw bar and production technology of chemical plating nickel-phosphorus alloy protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302898.0A CN110004435A (en) | 2019-04-16 | 2019-04-16 | A kind of the slush pump intermediate draw bar and production technology of chemical plating nickel-phosphorus alloy protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110004435A true CN110004435A (en) | 2019-07-12 |
Family
ID=67172117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910302898.0A Pending CN110004435A (en) | 2019-04-16 | 2019-04-16 | A kind of the slush pump intermediate draw bar and production technology of chemical plating nickel-phosphorus alloy protection |
Country Status (1)
| Country | Link |
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| CN (1) | CN110004435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652690A (en) * | 2021-07-27 | 2021-11-16 | 平顶山平煤机煤矿机械装备有限公司 | Metal surface treatment method for chemically plating nickel-phosphorus alloy sleeve with hard chromium |
-
2019
- 2019-04-16 CN CN201910302898.0A patent/CN110004435A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652690A (en) * | 2021-07-27 | 2021-11-16 | 平顶山平煤机煤矿机械装备有限公司 | Metal surface treatment method for chemically plating nickel-phosphorus alloy sleeve with hard chromium |
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Application publication date: 20190712 |