CN102601349A - Casting method for glass mould - Google Patents
Casting method for glass mould Download PDFInfo
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- CN102601349A CN102601349A CN2012100929057A CN201210092905A CN102601349A CN 102601349 A CN102601349 A CN 102601349A CN 2012100929057 A CN2012100929057 A CN 2012100929057A CN 201210092905 A CN201210092905 A CN 201210092905A CN 102601349 A CN102601349 A CN 102601349A
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Abstract
The invention discloses a casting method for a glass mould, which includes the steps: 1) manufacturing a wood mould; 2) forming a casting sand box and a channel sand box by means of molding; 3) vertically placing the casting sand box and the channel sand box, leading a channel-shaped cavity to correspond to a casting-shaped cavity, leading the head end of the channel-shaped cavity to correspond to a pouring gate on the casting sand box and positioning the tail end of the channel-shaped cavity below the casting-shaped cavity; 4) heating and melting casting materials, pouring the liquid casting materials into the pouring gate, and leading the liquid casting materials to enter the channel-shaped cavity of the channel sand box along the pouring gate; 5) cooling and ejecting the casting materials; and 6) removing sand. By the aid of the casting method, yield is effectively improved, and waste of materials and resources is reduced. The surface of a mould material casting poured by the casting method is free of contraction cavity and shedding, and the yield reaches more than 95%.
Description
Technical field
The present invention relates to the casting method of a kind of casting method, particularly a kind of glass mold.
Background technology
Glass mold is the instrument that glassware is made moulding, and in the process of glassware moulding, the thermal conductivity that material is good makes the mould temperature gradient inside or outside reduce to minimum, and prolonged the service life of mould.Cu alloy material for example, it has possessed good thermal conductivity, can not only prolong die life; Also the glassware molding effect is played very big effect, can prevent effectively that the frit temperature from not falling, be difficult to solidify; Frit receives gravity effect, and the bad glassware that causes.
Moreover, Cu alloy material also is suitable for the making of light weight glassware, can reach effective saving frit, reduces the carbon emission amount, so be widely used in glass mold.
The pouring temperature of copper alloy is 1280 ℃, because the quick conductive of copper alloy can make it when cast, solidify blocking channel very soon.
Simultaneously copper alloy state after fusion is thick liquid state, so must consider that the exhaust of sandbox is smooth and easy, can not be allowed to condition at when inserting cast model, owing to the resistance of air forms the gas sky that contracts, causes the foundry goods can't moulding.
In the conventional cast method, when big workpiece was made in cast, the heat that can ignore Cu alloy material ran off, and volume mass is bigger, and pressure is big, and moulding smoothly during cast only needs the increase gate diameter, lays exhaust outlet in right amount and gets final product.
But when pouring into a mould, often can not get the copper casting of high-quality than small workpiece.Usually foundry goods can occur has shrinkage cavity, and the surface comes off, problems such as half sandbox waste product.
At present, when pouring into a mould, in order to ensure the yield rate of material than light casting (for example copper casting); Normally strengthen cast gate, strengthen exhaust outlet, strengthen foundry goods allowance; It is slow to let its heat reduce, and unit volume pressure increases, and just can obtain good slightly copper casting; But the process-cycle is long, difficult processing, useless cutter, labor strength are big, is not optimum solution.Only opening up a kind of brand-new casting method could deal with problems from the source, and the waste that reduces the material and the energy improves castability.
Summary of the invention
The casting method that the purpose of this invention is to provide a kind of glass mold, it can effectively solve the variety of issue that casting material is easy to generate when cast.
In order to solve above-mentioned technical problem, technical scheme of the present invention is: a kind of casting method of glass mold, and it may further comprise the steps:
(1) make wooden model, said wooden model is divided into foundry goods outer mould and passage mould;
(2) moulding:
The foundry goods outer mould is fixed on the moulding machine, sandbox is installed, back-up sand; Cast gate is set, takes out the foundry goods outer mould, form foundry goods sandbox with foundry goods shape die cavity; Said cast gate run through the foundry goods sandbox about, itself and foundry goods shape die cavity are separate, also are provided with exhaust outlet on the foundry goods shape die cavity;
The passage mould is fixed on the moulding machine, sandbox is installed, the passage mould is taken out in back-up sand, forms the passage sandbox with channel shape die cavity;
(3) with held on foundry goods sandbox, the passage sandbox; The one side that has the channel shape die cavity on the passage sandbox makes progress; Having one of foundry goods shape die cavity on the foundry goods sandbox faces down; The channel shape die cavity is corresponding with foundry goods shape die cavity, and the head end of wherein said channel shape die cavity is corresponding with cast gate on the foundry goods sandbox, and its end is positioned at foundry goods shape die cavity below;
(4) the Cu alloy material heat fused handle, cast, Cu alloy material is molten into liquid condition, the Cu alloy material of aforesaid liquid state is poured in the cast gate; The Cu alloy material of liquid condition arrives in the channel shape die cavity of passage sandbox along cast gate; Get into foundry goods shape die cavity along the channel shape die cavity, along with the increase of watering fluence, upwards from the bottom of foundry goods shape die cavity; Be full of foundry goods shape die cavity and exhaust outlet gradually, finish cast;
(4) cooling, outlet, with the cooling of the product after the cast, the product with cast after the cooling takes out;
(5) sand removal, unnecessary overlap is destroyed in the scab of product surface behind the removing outlet.
In order further to improve the quality of casting, in said step (2), the passage sandbox is provided with boost port, said boost port run through the foundry goods sandbox about, when cast, boost port and the perforation of channel shape die cavity.
The inventive method effectively improves yields, reduces material, the wasting of resources, and no shrinkage cavity, the surface nothing that the inventive method is watered the mold materials cast(ing) surface that outpours comes off, yields reaches more than 95%.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Accompanying drawing is the sketch map of technology of the present invention.
The specific embodiment
Traditional casting technique is: utilize the cast gate 3 on the foundry goods shape die cavity 6 directly liquid mould material to be poured in the foundry goods shape die cavity 6, promptly watering water filling is to flow from the top down in foundry goods shape die cavity 6.For example cast is Cu alloy material, and the pouring temperature of copper alloy is greatly about about 1280 ℃, because the quick conductive of copper alloy can make it when cast, solidify blocking channel very soon.
Simultaneously copper alloy state after fusion is thick liquid state, so must consider that the exhaust of sandbox is smooth and easy, can not be allowed to condition at when inserting foundry goods shape die cavity 6, owing to the resistance of air forms the gas sky that contracts, causes the foundry goods can't moulding.
The present invention breaks through traditional handicraft, concrete steps:
(1) make wooden model, said wooden model is divided into foundry goods outer mould and passage mould.
(2) moulding:
The foundry goods outer mould is fixed on the moulding machine, sandbox is installed, back-up sand; Shown in accompanying drawing, cast gate 3 is set, take out the foundry goods outer mould; Formation has the foundry goods sandbox 1 of foundry goods shape die cavity 6; Said cast gate 3 run through foundry goods sandbox 1 about, itself and foundry goods shape die cavity 6 are separate, also are provided with exhaust outlet 4 on the foundry goods shape die cavity 6.
Be further to improve casting quality, passage sandbox 1 is provided with boost port 5, said boost port 5 run through foundry goods sandbox 1 about, when cast, boost port 5 connects with channel shape die cavity 7.
The passage mould is fixed on the moulding machine, sandbox is installed, the passage mould is taken out in back-up sand, forms the passage sandbox 2 with channel shape die cavity 7.
Said channel shape die cavity 7, foundry goods shape die cavity 6 be all on the surface of its sandbox, similarly be dig out passage on the sandbox surface, the foundry goods shape is the same.
(3) with held on foundry goods sandbox 1, the passage sandbox 2; The one side that has channel shape die cavity 7 on the passage sandbox 2 makes progress; Having one of foundry goods shape die cavity 6 on the foundry goods sandbox 1 faces down; Channel shape die cavity 7 is corresponding with foundry goods shape die cavity 6, and the head end of wherein said channel shape die cavity 7 is corresponding with cast gate 3 on the foundry goods sandbox 1, and its end is positioned at foundry goods shape die cavity 6 belows.
(4) the casting material heat fused handle, cast, casting material is molten into liquid condition, the casting material of aforesaid liquid state is poured in the cast gate 3; The casting material of liquid condition arrives in the channel shape die cavity 7 of passage sandbox 2 along cast gate 3; Get into foundry goods shape die cavities 6 along channel shape die cavity 7, along with the increase of watering fluence, upwards from the bottom of foundry goods shape die cavity 6; Be full of foundry goods shape die cavity 6 and exhaust outlet 4 gradually, finish cast.
When casting material injects cast gate 3 during in molten condition, get in the foundry goods shape die cavities 6 through channel shape die cavity 7, constantly rise as the water surface, progressively foundry goods shape die cavity 6 to be filled, the air of foundry goods shape die cavity 6 inside are discharged through exhaust outlet.
So simultaneously, when cast, inject at cast gate 3 places, because the foundry goods emission intensity is high, copper alloy is difficult to discharge in the temperature of molten condition, makes in its short time and can not solidify, and can not stop up the passage of cast.When cast gate 3, exhaust outlet 4 and boost port 5 are filled up in cast, can accomplish the cast task.The nothing of watering the cast(ing) surface that outpours contract sky, surface do not have come off, yields reaches 95%.
The direction of cast breaks through traditional top-down mode in foundry goods shape die cavity 6 shown in arrow among the figure, solved the variety of issue that top-down pouring type brought.
Certainly, channel shape die cavity 7 also can be arranged on the foundry goods sandbox 1, is in same plane with foundry goods shape die cavity 6; But; When such mode was poured into a mould, liquid casting material can impact the molding sand around the foundry goods shape die cavity 6, and such mode also can solve the problem of above-mentioned cast; But bringing certain problem, is not optimum mode among the present invention yet.
Casting material among the present invention is extensive, for example Cu alloy material, cast iron materials or the like.
(4) cooling, outlet, with the cooling of the product after the cast, the product with cast after the cooling takes out.
(5) sand removal, unnecessary overlap is destroyed in the scab of product surface behind the removing outlet.
The foregoing description does not limit the present invention in any way, and every employing is equal to the technical scheme that replacement or the mode of equivalent transformation obtain and all drops in protection scope of the present invention.
Claims (2)
1. the casting method of a glass mold is characterized in that may further comprise the steps:
(1) make wooden model, said wooden model is divided into foundry goods outer mould and passage mould;
(2) moulding:
The foundry goods outer mould is fixed on the moulding machine, sandbox is installed, back-up sand; Cast gate is set, takes out the foundry goods outer mould, form foundry goods sandbox with foundry goods shape die cavity; Said cast gate run through the foundry goods sandbox about, itself and foundry goods shape die cavity are separate, also are provided with exhaust outlet on the foundry goods shape die cavity;
The passage mould is fixed on the moulding machine, sandbox is installed, the passage mould is taken out in back-up sand, forms the passage sandbox with channel shape die cavity;
(3) with held on foundry goods sandbox, the passage sandbox; The one side that has the channel shape die cavity on the passage sandbox makes progress; Having one of foundry goods shape die cavity on the foundry goods sandbox faces down; The channel shape die cavity is corresponding with foundry goods shape die cavity, and the head end of wherein said channel shape die cavity is corresponding with cast gate on the foundry goods sandbox, and its end is positioned at foundry goods shape die cavity below;
(4) the casting material heat fused handle, cast, casting material is molten into liquid condition, the casting material of aforesaid liquid state is poured in the cast gate; The casting material of liquid condition arrives in the channel shape die cavity of passage sandbox along cast gate; Get into foundry goods shape die cavity along the channel shape die cavity, along with the increase of watering fluence, upwards from the bottom of foundry goods shape die cavity; Be full of foundry goods shape die cavity and exhaust outlet gradually, finish cast;
(4) cooling, outlet, with the cooling of the product after the cast, the product with cast after the cooling takes out;
(5) sand removal, unnecessary overlap is destroyed in the scab of product surface behind the removing outlet.
2. the casting method of glass mold according to claim 1, it is characterized in that: in said step (2), the passage sandbox is provided with boost port, said boost port run through the foundry goods sandbox about, when cast, boost port and the perforation of channel shape die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100929057A CN102601349A (en) | 2012-03-31 | 2012-03-31 | Casting method for glass mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100929057A CN102601349A (en) | 2012-03-31 | 2012-03-31 | Casting method for glass mould |
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| CN102601349A true CN102601349A (en) | 2012-07-25 |
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| CN2012100929057A Pending CN102601349A (en) | 2012-03-31 | 2012-03-31 | Casting method for glass mould |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350423A (en) * | 2017-06-19 | 2017-11-17 | 常熟市兄弟玻璃模具有限公司 | A kind of Glass Mould of Alloy Cast Iron static press moulding castomatic process |
| CN111906250A (en) * | 2020-06-22 | 2020-11-10 | 风帆有限责任公司 | Die and method for eliminating air holes in lead parts |
Citations (4)
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|---|---|---|---|---|
| CN101380661A (en) * | 2008-10-10 | 2009-03-11 | 武胜琛兰机械制造有限公司 | Fine casting method of dish type casting products |
| CN101391300A (en) * | 2008-10-31 | 2009-03-25 | 江苏科技大学 | Slot-wedge copper-alloy liquid-state filter purification casting device and processing technique |
| CN101693284A (en) * | 2009-09-29 | 2010-04-14 | 遵义拓特铸锻有限公司 | Horizontal split multi-stage oil delivery pump body casting technique |
| CN101954458A (en) * | 2010-04-22 | 2011-01-26 | 广西钟山长城矿山机械厂 | Method for manufacturing crushing wall or rolling mortar wall pouring system of cone crusher during sand-coated casting of inner/outer metal molds |
-
2012
- 2012-03-31 CN CN2012100929057A patent/CN102601349A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380661A (en) * | 2008-10-10 | 2009-03-11 | 武胜琛兰机械制造有限公司 | Fine casting method of dish type casting products |
| CN101391300A (en) * | 2008-10-31 | 2009-03-25 | 江苏科技大学 | Slot-wedge copper-alloy liquid-state filter purification casting device and processing technique |
| CN101693284A (en) * | 2009-09-29 | 2010-04-14 | 遵义拓特铸锻有限公司 | Horizontal split multi-stage oil delivery pump body casting technique |
| CN101954458A (en) * | 2010-04-22 | 2011-01-26 | 广西钟山长城矿山机械厂 | Method for manufacturing crushing wall or rolling mortar wall pouring system of cone crusher during sand-coated casting of inner/outer metal molds |
Non-Patent Citations (1)
| Title |
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| 罗伟昌等: "《铸型工艺学》", 28 February 1965, article "《铸型工艺学》" * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350423A (en) * | 2017-06-19 | 2017-11-17 | 常熟市兄弟玻璃模具有限公司 | A kind of Glass Mould of Alloy Cast Iron static press moulding castomatic process |
| CN111906250A (en) * | 2020-06-22 | 2020-11-10 | 风帆有限责任公司 | Die and method for eliminating air holes in lead parts |
| CN111906250B (en) * | 2020-06-22 | 2022-02-18 | 风帆有限责任公司 | Die and method for eliminating air holes in lead parts |
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Application publication date: 20120725 |