CN105969946A - Composite treatment process for impeller head blade - Google Patents
Composite treatment process for impeller head blade Download PDFInfo
- Publication number
- CN105969946A CN105969946A CN201610406911.3A CN201610406911A CN105969946A CN 105969946 A CN105969946 A CN 105969946A CN 201610406911 A CN201610406911 A CN 201610406911A CN 105969946 A CN105969946 A CN 105969946A
- Authority
- CN
- China
- Prior art keywords
- shot blasting
- blasting device
- device blades
- treatment process
- impeller head
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a composite treatment process for an impeller head blade. The composite treatment process comprises the following steps that firstly, the impeller head blade is subjected to controlled atmosphere quenching so that the surface hardness of the impeller head blade can be improved; secondly, the impeller head blade subjected to controlled atmosphere quenching is subjected to tempering so that the stress can be eliminated; and finally, the impeller head blade subjected to tempering is subjected to supersonic flame spraying through a supersonic flame spraying machine so that a carbide powder compact coating can be formed on the surface of the impeller head blade. According to the composite treatment process for the impeller head blade, the surface hardness of the impeller head blade is improved, the carbide powder compact coating is formed on the surface of the impeller head blade, the abrasion resistance and the corrosion resistance of the product are remarkably improved, and the service life of the product is prolonged.
Description
Technical field
The present invention relates to heat treatment and process for modifying surface field, the compound place of a kind of shot blasting device blades
Science and engineering skill.
Background technology
Shot blasting device blades is the core component of impeller head, and it is used for the acceleration in shot projecting process,
When shot is accelerated in impeller head, shot blasting device blades certainly will be produced impact, cause the mill of shot blasting device blades
Damage.The shot blasting device blades of casting typically by chromium content be 17～23% wear resistant cast iron casting form, its
Case hardness is poor, is usually no more than 600 hours service life.It is therefore desirable to the ball blast to casting
Device blade carries out further heat treatment, to improve its case hardness and anti-wear performance.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that the composite treatment process of a kind of shot blasting device blades, this technique energy
Enough significantly improving the hardness that shows of shot blasting device blades, improve the service life of product, its concrete technical scheme is such as
Under:
The composite treatment process of a kind of shot blasting device blades, first it comprise the steps:, to shot blasting device blades
Carry out controlled atmosphere quenching, to improve its case hardness；Then, to through controlled atmosphere quench after described in
Shot blasting device blades is tempered, to go de-stress；Finally, use HVAF machine to through tempering
After described shot blasting device blades carry out HVAF so that its surface formed carbide powder densification be coated with
Layer.
Further, the technical process of described controlled atmosphere quenching is: shot blasting device blades is put into controlled atmosphere
In mult-purpose chamber furnace, being heated to 845 DEG C～865 DEG C, controlling carbon potential CP value in stove is 0.9～1.1, and press 4～
The flow velocity of 8 liters/min is passed through ammonia, seals cold 30 points of oil in oil-quenching tank at cup after being incubated 1.5～2 hours
Clock.
Further, the technical process of described tempering is: put by the shot blasting device blades quenched through controlled atmosphere
Enter in common chamber type annealing stove, be heated to 150 DEG C～170 DEG C, come out of the stove in atmosphere after being incubated 1.5～2 hours
Natural cooling.
Compared with prior art, the method have technical effect that: improve the case hardness of shot blasting device blades,
And carbide powder dense coating is formed on its surface, significantly improve the wearability of product, corrosion resistance, prolong
The service life of long products.
Detailed description of the invention
In a specific embodiment, the material of casting is by the composite treatment process of the use present invention
The shot blasting device blades of 40Cr carries out Combined Processing.
Implement the present invention composite treatment process before, the Rockwell hardness (HRC) of shot blasting device blades be 48～
52.The composite treatment process of the shot blasting device blades of the present invention comprises the steps:
(1), controlled atmosphere quenching: shot blasting device blades is put in controllable atmosphere box-type multipurpose furnace, be heated to
845 DEG C～865 DEG C, in control stove, carbon potential CP value is 0.9～1.1, and is passed through by the flow velocity of 4～8 liters/min
Ammonia, seals cold 30 minutes of oil in oil-quenching tank at cup after being incubated 1.5～2 hours.
After controlled atmosphere quenches, the Rockwell hardness (HRC) of shot blasting device blades is promoted to 56～60.
(2), tempering: the shot blasting device blades quenched through controlled atmosphere is put in common chamber type annealing stove, adds
Hot to 150 DEG C～170 DEG C, natural cooling of coming out of the stove after being incubated 1.5～2 hours.
(3), HVAF: use HVAF machine thick at the surface spraying of shot blasting device blades
Degree is 0.15～0.2mm, and density is more than 10g/m3Carbide powder dense coating.Carbide powder is fine and close
Coating can improve the wearability on shot blasting device blades surface further.
The average life of the shot blasting device blades after the composite treatment process of the present invention processes reaches 2000
Hour.
Visible, the composite treatment process of the present invention improves the case hardness of shot blasting device blades, and on its surface
Form carbide powder dense coating, significantly improve the wearability of product, corrosion resistance, extend making of product
Use the life-span.
Above the present invention has been carried out the most detailed description with certain particularity.General in art
Logical it is to be understood by the skilled artisans that what description in embodiment was merely exemplary, true without departing from the present invention
Make being changed on the premise of real spirit and scope and all should belong to protection scope of the present invention.Institute of the present invention
Claimed scope be defined by described claims rather than above-mentioned by embodiment
Description limits.
Claims (3)
1. the composite treatment process of a shot blasting device blades, it is characterised in that it comprises the steps:
First, shot blasting device blades is carried out controlled atmosphere quenching, to improve its case hardness；Then, to warp
Cross the described shot blasting device blades after controlled atmosphere quenching to be tempered, to eliminate stress；Finally, Supersonic is used
Speed flame sprayer carries out HVAF to the described shot blasting device blades after tempering so that its table
Face forms carbide powder dense coating.
2. the composite treatment process of shot blasting device blades as claimed in claim 1, it is characterised in that described
The technical process of controlled atmosphere quenching is: put into by shot blasting device blades in controllable atmosphere box-type multipurpose furnace, heating
To 845 DEG C～865 DEG C, in control stove, carbon potential CP value is 0.9～1.1, and leads to by the flow velocity of 4～8 liters/min
Enter ammonia, after being incubated 1.5～2 hours, seal cold 30 minutes of oil in oil-quenching tank at cup.
3. the composite treatment process of shot blasting device blades as claimed in claim 1, it is characterised in that described time
The technical process of fire is: put into by the shot blasting device blades quenched through controlled atmosphere in common chamber type annealing stove,
It is heated to 150 DEG C～170 DEG C, natural cooling in atmosphere of coming out of the stove after being incubated 1.5～2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406911.3A CN105969946B (en) | 2016-06-12 | 2016-06-12 | A kind of composite treatment process of shot blasting device blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406911.3A CN105969946B (en) | 2016-06-12 | 2016-06-12 | A kind of composite treatment process of shot blasting device blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105969946A true CN105969946A (en) | 2016-09-28 |
| CN105969946B CN105969946B (en) | 2018-05-04 |
Family
ID=57011092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406911.3A Active CN105969946B (en) | 2016-06-12 | 2016-06-12 | A kind of composite treatment process of shot blasting device blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105969946B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130094A (en) * | 2017-06-23 | 2017-09-05 | 江苏丰东热处理及表面改性工程技术研究有限公司 | A kind of automobile connecting bar throwing pill strengthening technique |
| CN107775542A (en) * | 2017-11-13 | 2018-03-09 | 江苏飞腾铸造机械有限公司 | A kind of thermal spraying shot blast machine blade and its assembly method |
| CN109913865A (en) * | 2019-04-11 | 2019-06-21 | 山东开泰抛丸机械股份有限公司 | A kind of impeller head forward curve blade prepares mold mechanism and preparation method |
| CN111607688A (en) * | 2020-07-06 | 2020-09-01 | 温州大学 | Method for laser phase change hardening of surface of shot blasting machine blade |
Citations (6)
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|---|---|---|---|---|
| CN1054100A (en) * | 1991-03-10 | 1991-08-28 | 朴铁军 | Method for manufacturing novel high-chromium cast iron for high-wear machine parts |
| CN103667958A (en) * | 2013-12-17 | 2014-03-26 | 西宁特殊钢股份有限公司 | Steel for second last stage long blade of ultra-supercritical steam turbine generator set and smelting method of steel |
| CN103817607A (en) * | 2014-02-26 | 2014-05-28 | 江苏久联冶金机械制造有限公司 | Wear-resistant shot blasting machine blade and preparation method thereof |
| CN103993154A (en) * | 2014-06-09 | 2014-08-20 | 江西航宇热处理有限公司 | Thermal treatment method of alloy steel gear |
| CN104164551A (en) * | 2014-07-30 | 2014-11-26 | 宁国市冠宇模具有限公司 | Tempering processing method for high-chromium cast iron dies |
| CN105154893A (en) * | 2015-09-23 | 2015-12-16 | 宁波兴波机械有限公司 | Die heat treatment process for enhancing hardness of die |
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2016
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|---|---|---|---|---|
| CN1054100A (en) * | 1991-03-10 | 1991-08-28 | 朴铁军 | Method for manufacturing novel high-chromium cast iron for high-wear machine parts |
| CN103667958A (en) * | 2013-12-17 | 2014-03-26 | 西宁特殊钢股份有限公司 | Steel for second last stage long blade of ultra-supercritical steam turbine generator set and smelting method of steel |
| CN103817607A (en) * | 2014-02-26 | 2014-05-28 | 江苏久联冶金机械制造有限公司 | Wear-resistant shot blasting machine blade and preparation method thereof |
| CN103993154A (en) * | 2014-06-09 | 2014-08-20 | 江西航宇热处理有限公司 | Thermal treatment method of alloy steel gear |
| CN104164551A (en) * | 2014-07-30 | 2014-11-26 | 宁国市冠宇模具有限公司 | Tempering processing method for high-chromium cast iron dies |
| CN105154893A (en) * | 2015-09-23 | 2015-12-16 | 宁波兴波机械有限公司 | Die heat treatment process for enhancing hardness of die |
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| 刘均波: "《反应等离子熔敷高铬铁基涂层组织与性能》", 31 March 2014, 煤炭工业出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130094A (en) * | 2017-06-23 | 2017-09-05 | 江苏丰东热处理及表面改性工程技术研究有限公司 | A kind of automobile connecting bar throwing pill strengthening technique |
| CN107775542A (en) * | 2017-11-13 | 2018-03-09 | 江苏飞腾铸造机械有限公司 | A kind of thermal spraying shot blast machine blade and its assembly method |
| CN109913865A (en) * | 2019-04-11 | 2019-06-21 | 山东开泰抛丸机械股份有限公司 | A kind of impeller head forward curve blade prepares mold mechanism and preparation method |
| CN111607688A (en) * | 2020-07-06 | 2020-09-01 | 温州大学 | Method for laser phase change hardening of surface of shot blasting machine blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105969946B (en) | 2018-05-04 |
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Effective date of registration: 20221026 Address after: 811, Floor 1, 8 # Workshop, Zone 3, Junshan Science and Technology Industrial Park, Wuhan Economic and Technological Development Zone, 430,000, Hubei Province Patentee after: Wuhan Fengdong Thermal Technology Co.,Ltd. Address before: 224100 Nanxiang Road 333, Dafeng Economic Development Zone, Yancheng City, Jiangsu Patentee before: JIANGSU FENGDONG HEAT TREATMENT AND SURFACE MODIFICATION ENGINEERING TECHNOLOGY RESEARCH CO.,LTD. |
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| TR01 | Transfer of patent right |