CN105478670A - Automatic crank switch manufacturing method - Google Patents
Automatic crank switch manufacturing method Download PDFInfo
- Publication number
- CN105478670A CN105478670A CN201510909993.9A CN201510909993A CN105478670A CN 105478670 A CN105478670 A CN 105478670A CN 201510909993 A CN201510909993 A CN 201510909993A CN 105478670 A CN105478670 A CN 105478670A
- Authority
- CN
- China
- Prior art keywords
- casting
- lost
- automatic switch
- heat treatment
- manufacture method
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
Abstract
The invention discloses an automatic crank switch manufacturing method. In the lost-wax precision casting process, a pressurization jetting injection casting method is adopted for casting, selective quenching is adopted for thermal treatment, the temperature is controlled within the range from 820 DEG C to 850 DEG C for 1.5 minutes, and the surface hardness ranges from HRC 53 to HRC 56. The automatic crank switch machining method has the advantages of being high in part surface finish, few in machining step and high in yield.
Description
Technical field
The present invention relates to the manufacture method of switch, particularly a kind of crank automatic switch manufacture method.
Background technology
Crank in crank automatic switch is the critical component in electric switch, and what most of crank automatic switch adopted is wood pattern molding, sand casting, and greatly, cast(ing) surface is coarse, and internal flaw is many, and the percentage of A-class goods is low for appearance and size and Form and position error.Automatic switch opening and closing crank is the critical component in electric switch, and what most of switch opening and closing crank adopted is wood pattern molding, sand casting, and greatly, cast(ing) surface is coarse, and internal flaw is many, and the percentage of A-class goods is low for appearance and size and Form and position error.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above.
The object of the present invention is achieved like this: a kind of crank automatic switch manufacture method, it is characterized in that: comprise following processing step, → heat treatment → surperficial zinc electroplating with iridescent yellow chromate conversion coating → grinding cut by lost-wax casting → corase grind, and in lost-wax casting step, casting adopts pressurized jet note to water method casting.
Described heat treatment step adopts selective hardening, and temperature controls 820 DEG C-850 DEG C, and the time is 1.5 minutes, and case hardness is HRC53-56.
The method that the present invention adopts, the advantage that the piece surface of production is highly polished, procedure of processing is few, yield rate is high.
Detailed description of the invention
The invention will be further described below, but not as limitation of the present invention:
A kind of crank automatic switch manufacture method, it is characterized in that: comprise following processing step, → heat treatment → surperficial zinc electroplating with iridescent yellow chromate conversion coating → grinding cut by lost-wax casting → corase grind, and in lost-wax casting step, casting adopts pressurized jet note to water method casting; Described heat treatment step adopts selective hardening, and temperature controls 820 DEG C-850 DEG C, and the time is 1.5 minutes, and case hardness is HRC53-56.
During concrete enforcement, the improvement of automatic switch opening and closing crank manufacturing process, it comprises: 1) blank casting adopts lost-wax casting, curedly the husky moulding of core rod is shaped to lose again by the cured shape being shaped to product of industry, casting adopts pressurized jet note to water method casting, industrial wax moulding is dissolved at product surface when casting, and improves surface smoothness, improves density of material; 2) corase grind is cut: part on a grinding unit head, ensures part relative rotary grinding under certain linear velocity with hole positioning and clamping, and part and grinding speed are than being 1:1200, and the precision of grinding power is high, and rotating speed balances, and reaches requirement size; 3) adopt the heat treatment mode of selective hardening, temperature controls 820 DEG C-850 DEG C, and the time is 1.5 minutes, transient heating, and case hardness is between HRC53-56; 4) piece surface zinc electroplating with iridescent yellow chromate conversion coating, thickness of coating reaches requirement; 5) fine ginding, reaches requirement size.
Claims (2)
1. a crank automatic switch manufacture method, is characterized in that: comprise following processing step, and → heat treatment → surperficial zinc electroplating with iridescent yellow chromate conversion coating → grinding cut by lost-wax casting → corase grind, and in lost-wax casting step, casting adopts pressurized jet note to water method casting.
2. a kind of crank automatic switch manufacture method according to claim 1, is characterized in that: described heat treatment step adopts selective hardening, and temperature controls 820 DEG C-850 DEG C, and the time is 1.5 minutes, and case hardness is HRC53-56.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909993.9A CN105478670A (en) | 2015-12-10 | 2015-12-10 | Automatic crank switch manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909993.9A CN105478670A (en) | 2015-12-10 | 2015-12-10 | Automatic crank switch manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105478670A true CN105478670A (en) | 2016-04-13 |
Family
ID=55666139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510909993.9A Pending CN105478670A (en) | 2015-12-10 | 2015-12-10 | Automatic crank switch manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105478670A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086751A (en) * | 1992-11-07 | 1994-05-18 | 林汉水 | Complicated non deformable high-accuracy parts method for making |
| JP4062292B2 (en) * | 2003-11-19 | 2008-03-19 | マツダ株式会社 | Light alloy casting manufacturing method |
| CN102441643A (en) * | 2011-12-08 | 2012-05-09 | 含山县清溪兴隆铸件厂 | Lost-foam casting production process combined with thermal spraying surface treatment |
| CN102909524A (en) * | 2011-08-03 | 2013-02-06 | 靖江市海源有色金属材料有限公司 | Process for manufacturing cranks capable of automatically opening and closing |
| CN102962643A (en) * | 2012-11-21 | 2013-03-13 | 遵义洪棣机械设备制造有限公司 | Manufacturing method of stranding dies |
-
2015
- 2015-12-10 CN CN201510909993.9A patent/CN105478670A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086751A (en) * | 1992-11-07 | 1994-05-18 | 林汉水 | Complicated non deformable high-accuracy parts method for making |
| JP4062292B2 (en) * | 2003-11-19 | 2008-03-19 | マツダ株式会社 | Light alloy casting manufacturing method |
| CN102909524A (en) * | 2011-08-03 | 2013-02-06 | 靖江市海源有色金属材料有限公司 | Process for manufacturing cranks capable of automatically opening and closing |
| CN102441643A (en) * | 2011-12-08 | 2012-05-09 | 含山县清溪兴隆铸件厂 | Lost-foam casting production process combined with thermal spraying surface treatment |
| CN102962643A (en) * | 2012-11-21 | 2013-03-13 | 遵义洪棣机械设备制造有限公司 | Manufacturing method of stranding dies |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |