CN105969946B - A kind of composite treatment process of shot blasting device blades - Google Patents
A kind of composite treatment process of shot blasting device blades Download PDFInfo
- Publication number
- CN105969946B CN105969946B CN201610406911.3A CN201610406911A CN105969946B CN 105969946 B CN105969946 B CN 105969946B CN 201610406911 A CN201610406911 A CN 201610406911A CN 105969946 B CN105969946 B CN 105969946B
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- CN
- China
- Prior art keywords
- shot blasting
- blasting device
- device blades
- blades
- quenching
- 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.)
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Classifications
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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
- 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 kind of composite treatment process of shot blasting device blades, it includes the following steps：First, controlled atmosphere quenching is carried out to shot blasting device blades, to improve the hardness on its surface；Then, the shot blasting device blades after controlled atmosphere quenches are tempered, to eliminate stress；Finally, supersonic flame spraying is carried out to the shot blasting device blades after tempering using supersonic flame spraying machine so that its surface forms carbide powder dense coating.The composite treatment process of the present invention can improve the case hardness of shot blasting device blades, and form carbide powder dense coating on its surface, significantly improve wearability, the corrosion resistance of product, extend the service life of product.
Description
Technical field
The present invention relates to heat treatment and process for modifying surface field, the combined processing work of especially a kind of shot blasting device blades
Skill.
Background technology
Shot blasting device blades are the core components of impeller head, it is used to exist to the acceleration in shot projecting process, shot
When being accelerated in impeller head, impact certainly will be produced to shot blasting device blades, cause the abrasion of shot blasting device blades.The ball blast of casting
Device blade is generally formed by the wear resistant cast iron casting that chromium content is 17~23%, its case hardness is poor, and service life is generally not
When small more than 600.It is therefore desirable to the shot blasting device blades to casting to be further heat-treated, hard to improve its surface
Degree and wear-resisting property.
The content of the invention
For the present invention in view of the above-mentioned problems, providing a kind of composite treatment process of shot blasting device blades, which can be notable
The service life for showing hardness, improving product of shot blasting device blades is improved, its concrete technical scheme is as follows：
A kind of composite treatment process of shot blasting device blades, it includes the following steps：First, shot blasting device blades are carried out controllable
Atmosphere quenches, to improve its case hardness；Then, the shot blasting device blades after controlled atmosphere quenches are tempered,
To go de-stress；Finally, the shot blasting device blades after tempering are carried out with supersonic speed fire using supersonic flame spraying machine
Flame sprays so that its surface forms carbide powder dense coating.
Further, the technical process of the controlled atmosphere quenching is：It is more that shot blasting device blades are put into controllable atmosphere box-type
With in stove, being heated to 845 DEG C~865 DEG C, it is 0.9~1.1 to control carbon potential CP values in stove, and is led to by 4~8 liters/min of flow velocity
Enter ammonia, when insulation 1.5~2 is small after in cup seals oil-quenching tank oil cooling 30 minutes.
Further, the technical process of the tempering is：It will be put into commonly by the shot blasting device blades of controlled atmosphere quenching
In chamber type annealing stove, be heated to 150 DEG C~170 DEG C, when insulation 1.5~2 is small after come out of the stove natural cooling in atmosphere.
Compared with prior art, the technical effects of the invention are that：The case hardness of shot blasting device blades is improved, and at it
Surface forms carbide powder dense coating, significantly improves wearability, the corrosion resistance of product, extends the service life of product.
Embodiment
In a specific embodiment, the throwing for the use of the composite treatment process of the present invention being 40Cr to the material of casting
The processing for composite of ball device blade.
Before the composite treatment process of the present invention is implemented, the Rockwell hardness (HRC) of shot blasting device blades is 48~52.This hair
The composite treatment process of bright shot blasting device blades includes the following steps：
(1), controlled atmosphere quenches：Shot blasting device blades are put into controllable atmosphere box-type multipurpose furnace, be heated to 845 DEG C~
865 DEG C, it is 0.9~1.1 to control carbon potential CP values in stove, and is passed through ammonia by 4~8 liters/min of flow velocity, when insulation 1.5~2 is small
Oil cooling 30 minutes in cup seals oil-quenching tank afterwards.
After controlled atmosphere quenches, the Rockwell hardness (HRC) of shot blasting device blades is promoted to 56~60.
(2), it is tempered：It will be put into by the shot blasting device blades of controlled atmosphere quenching in common chamber type annealing stove, be heated to 150
DEG C~170 DEG C, when insulation 1.5~2 is small after come out of the stove natural cooling.
(3), supersonic flame spraying：Use supersonic flame spraying machine shot blasting device blades surface spraying thickness for
0.15~0.2mm, density are more than 10g/m3Carbide powder dense coating.Carbide powder dense coating can be carried further
The wearability on shot blasting device blades surface is risen.
By the present invention composite treatment process processing after shot blasting device blades average life reach 2000 it is small when.
As it can be seen that the composite treatment process of the present invention improves the case hardness of shot blasting device blades, and carbon is formed on its surface
Compound powder dense coating, significantly improves wearability, the corrosion resistance of product, extends the service life of product.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields
Personnel are it should be understood that what the description in embodiment was merely exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change should all belong to protection scope of the present invention.Scope of the present invention is by the power
What sharp claim was defined, rather than limited by foregoing description in embodiment.
Claims (2)
1. a kind of composite treatment process of shot blasting device blades, it is characterised in that it includes the following steps：
First, controlled atmosphere quenching is carried out to shot blasting device blades, to improve its case hardness；Then, to quenching by controlled atmosphere
The shot blasting device blades after fire are tempered, to eliminate stress；Finally, using supersonic flame spraying machine to after tempering
The shot blasting device blades carry out supersonic flame spraying so that its surface formed carbide powder dense coating；
The technical process of controlled atmosphere quenching is：Shot blasting device blades are put into controllable atmosphere box-type multipurpose furnace, are heated to
845 DEG C~865 DEG C, it is 0.9~1.1 to control carbon potential CP values in stove, and is passed through ammonia, insulation 1.5 by 4~8 liters/min of flow velocity
~2 it is small when after the oil cooling 30 minutes in cup seals oil-quenching tank.
2. the composite treatment process of shot blasting device blades as claimed in claim 1, it is characterised in that the technical process of the tempering
For：It will be put into by the shot blasting device blades of controlled atmosphere quenching in common chamber type annealing stove, be heated to 150 DEG C~170 DEG C, insulation
1.5~2 it is small when after come out of the stove natural cooling in atmosphere.
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 CN105969946A (en) | 2016-09-28 |
| CN105969946B true CN105969946B (en) | 2018-05-04 |
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| 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 |
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| CN (1) | CN105969946B (en) |
Families Citing this family (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 |
| CN111607688B (en) * | 2020-07-06 | 2022-04-12 | 温州大学 | Method for laser phase change hardening of surface of shot blasting machine blade |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054100A (en) * | 1991-03-10 | 1991-08-28 | 朴铁军 | The new high chromium cast iron manufacture method that is used for highly abrasive parts using |
| CN103667958B (en) * | 2013-12-17 | 2015-08-26 | 西宁特殊钢股份有限公司 | Supercritical turbine group time final blades steel and smelting process thereof |
| CN103817607B (en) * | 2014-02-26 | 2016-01-20 | 江苏久联冶金机械制造有限公司 | A kind of preparation method of wear-resisting shot blast machine blade |
| 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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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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