CN102527980A - Pressure casting process for lock - Google Patents
Pressure casting process for lock Download PDFInfo
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- CN102527980A CN102527980A CN2010105581633A CN201010558163A CN102527980A CN 102527980 A CN102527980 A CN 102527980A CN 2010105581633 A CN2010105581633 A CN 2010105581633A CN 201010558163 A CN201010558163 A CN 201010558163A CN 102527980 A CN102527980 A CN 102527980A
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- liquid metal
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- cavity
- injection
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Abstract
The invention discloses a pressure casting process for a lock, which includes the steps: mounting a die; preheating the die; cleaning the die; spraying coatings on the die; placing the die on a die assembly device for die assembly; selecting injection pressure and filling speed; injecting liquid metal into a cavity and leading the cavity to be filled with the liquid metal; continuing injection under the action of an injection plunger until the liquid metal filled to a flow gate of the cavity is completely solidified; taking out a casting by opening the cavity after maintaining pressure; and cleaning the casting. The pressure casting process has the advantages that fine product quality is ensured, precision, strength and hardness are high, machining amount is small, large quantities of machining equipment and machining time are reduced, metal utilization rate is increased, both assembly time and the metal are saved, production efficiency is high, and mechanization and automation are easy to realize.
Description
Technical field:
The present invention relates to a kind of lock pressure casting process.
Background technology:
Lock compression casting is one of state-of-the-art metal forming process, is to realize few smear metal, and the effective way of chipless is used very extensively, develops very fast.Diecasting alloys no longer are confined to zinc, aluminium, magnesium and the copper of non-ferrous metal at present; And enlarge gradually and be used for die casting cast iron and steel-casting, and there is shortcoming in the pressure casting method of traditional lock: poor product quality, and precision, intensity, hardness are low; Processing capacity is big; Increased a large amount of process equipments and man-hour, production efficiency is low, is difficult for realizing mechanization and automation.
Summary of the invention:
The objective of the invention is provides a kind of assurance good product quality in order to overcome above deficiency, and production efficiency is high, the lock pressure casting process that economic effect is good.
The object of the invention is realized through following technical scheme: a kind of lock pressure casting process may further comprise the steps:
A, installation mold;
B, preheated mold, preheat temperature are 180-220 ℃;
C, cleaning mould;
D, on mould stenciling coating;
E, mould is placed on carries out matched moulds on the mold closing mechanism;
F, selection injection ratio pressure and filling velocity, the fast shot journey is 250-, the slow shot journey is 0-250mm, liquid metal is opened injected die cavity and be full of die cavity;
G, continuation injection under the injection punch head effect are solidified to ingate until liquid metal filling die cavity fully, and cast temperature is 6510-700 ℃, the thick 15-30mm of material cake, and the dwell time is 25-30s;
H, hold and press back cooling open form taking-up foundry goods naturally;
I, cleaning foundry goods.
The present invention compared with prior art has the following advantages:
1, guarantees good product quality, precision, intensity, hardness height;
2, processing capacity is little, has reduced a large amount of process equipments and man-hour, improves using rate of metal, when not only having saved the assembler but also save metal;
3, production efficiency is high, is prone to realize mechanization and automation.
The specific embodiment:
In order to deepen to understanding of the present invention, will combine embodiment that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.
The present invention locks a kind of specific embodiment of pressure casting process, may further comprise the steps:
A, installation mold;
B, preheated mold, preheat temperature are 180-220 ℃;
C, cleaning mould;
D, on mould stenciling coating;
E, mould is placed on carries out matched moulds on the mold closing mechanism;
F, selection injection ratio pressure and filling velocity, the fast shot journey is 250-, the slow shot journey is 0-250mm, liquid metal is opened injected die cavity and be full of die cavity;
The selection of injection ratio pressure should be confirmed according to different-alloy and casting structure characteristic.To the selection of filling velocity, the foundry goods of generally having relatively high expectations for heavy wall or internal soundness should be selected lower filling velocity and high boost pressure; For thin-walled or demanding foundry goods of surface quality and complicated foundry goods, should select higher ratio to go through and high filling velocity.
G, continuation injection under the injection punch head effect are solidified to ingate until liquid metal filling die cavity fully, and cast temperature is 6510-700 ℃, the thick 15-30mm of material cake, and the dwell time is 25-30s;
The length of holding the pressure time depends on the material and the wall thickness of foundry goods.
H, hold and press the back open form to take out foundry goods;
The open form time is answered precise control.The open form time is too short, because alloy strength is still low, possibly ejects and when die-casting die falls, causes distortion at foundry goods; But the open form time is oversize, and then casting temperature is low excessively, shrink big, to loosing core and to eject the resistance of foundry goods also big.The general open form time presses 1 millimeter need of casting section thickness and calculates for 3 seconds, adjusts through trial then.
I, cleaning foundry goods.
The cleaning of foundry goods is very hard work, 10～15 times of its workload die casting workload often.Therefore with the raising of die casting machine productivity ratio, the increase of output, casting cleaning work realize that mechanization and automation are very important, need excision cast gate and overlap, surface treatment and finishing.
The present invention has the assurance good product quality, and precision, intensity, hardness are high, and processing capacity is little, has reduced a large amount of process equipments and man-hour, improves using rate of metal, and when not only having saved the assembler but also save metal, production efficiency is high, is prone to realize the advantage of mechanization and automation.
Claims (1)
1. lock pressure casting process for one kind, it is characterized in that: may further comprise the steps:
A, installation mold;
B, preheated mold, preheat temperature are 180-220 ℃;
C, cleaning mould;
D, on mould stenciling coating;
E, mould is placed on carries out matched moulds on the mold closing mechanism;
F, selection injection ratio pressure and filling velocity, the fast shot journey is 250-, the slow shot journey is 0-250mm, liquid metal is opened injected die cavity and be full of die cavity;
G, continuation injection under the injection punch head effect are solidified to ingate until liquid metal filling die cavity fully, and cast temperature is 6510-700 ℃, the thick 15-30mm of material cake, and the dwell time is 25-30s;
H, hold and press back cooling open form taking-up foundry goods naturally;
I, cleaning foundry goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105581633A CN102527980A (en) | 2010-11-24 | 2010-11-24 | Pressure casting process for lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105581633A CN102527980A (en) | 2010-11-24 | 2010-11-24 | Pressure casting process for lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102527980A true CN102527980A (en) | 2012-07-04 |
Family
ID=46336698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105581633A Pending CN102527980A (en) | 2010-11-24 | 2010-11-24 | Pressure casting process for lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102527980A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909245A (en) * | 2014-04-04 | 2014-07-09 | 安徽省辉煌机械制造有限公司 | Gear chamber cover manufacturing process |
| CN103909244A (en) * | 2014-04-04 | 2014-07-09 | 安徽省辉煌机械制造有限公司 | Process for manufacturing shells of speed reducers |
| CN107983931A (en) * | 2017-12-20 | 2018-05-04 | 浦江冠山锁具有限公司 | A kind of die-casting process method of padlock body |
| CN108202134A (en) * | 2017-12-20 | 2018-06-26 | 浦江冠山锁具有限公司 | A kind of padlock body processing method |
-
2010
- 2010-11-24 CN CN2010105581633A patent/CN102527980A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909245A (en) * | 2014-04-04 | 2014-07-09 | 安徽省辉煌机械制造有限公司 | Gear chamber cover manufacturing process |
| CN103909244A (en) * | 2014-04-04 | 2014-07-09 | 安徽省辉煌机械制造有限公司 | Process for manufacturing shells of speed reducers |
| CN107983931A (en) * | 2017-12-20 | 2018-05-04 | 浦江冠山锁具有限公司 | A kind of die-casting process method of padlock body |
| CN108202134A (en) * | 2017-12-20 | 2018-06-26 | 浦江冠山锁具有限公司 | A kind of padlock body processing method |
| CN107983931B (en) * | 2017-12-20 | 2019-08-06 | 浦江冠山锁具有限公司 | A kind of die-casting process method of padlock body |
| CN108202134B (en) * | 2017-12-20 | 2019-08-06 | 浦江冠山锁具有限公司 | A kind of padlock body processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |