CN102672107A - Inclined cavity low-end pouring detection flat board sand mould - Google Patents
Inclined cavity low-end pouring detection flat board sand mould Download PDFInfo
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- CN102672107A CN102672107A CN2012101503329A CN201210150332A CN102672107A CN 102672107 A CN102672107 A CN 102672107A CN 2012101503329 A CN2012101503329 A CN 2012101503329A CN 201210150332 A CN201210150332 A CN 201210150332A CN 102672107 A CN102672107 A CN 102672107A
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Abstract
The invention provides an inclined cavity low-end pouring detection flat board sand mould. A detection flat board and an inner pouring channel are arranged on a lower sand mould; a transverse pouring channel and a straight pouring channel are arranged on an upper sand mould; an external sprue is formed on the straight pouring channel; the left end of the sand mould is lifted up, so that the cavity of the detection flat board is inclined, and the roasting area of high-temperature molten iron on a cavity wall is reduced; the external sprue is arranged on the upper opening of the straight pouring channel to improve the available static head height and the flow velocity of the liquid level of the molten iron; a wedged sand cushion is arranged below the sand mould; molten HT200 molten iron rushes into the external sprue, the straight pouring channel, the transverse pouring channel, the inner pouring channel and the low right end of the detection flat board in sequence, so that the cavity is rapidly filled. The defects of sand inclusion, scabbing and air vents of a detection flat board casting piece can be overcome; and the casting yield of the detection flat board is improved.
Description
Technical field
The present invention relates to a kind of casting technique, the die cavity low side that especially tilts cast detects dull and stereotyped sand mold.
Background technology
Current detection plate sand casting, pouring, and can not erect pouring its side case detection using cavity plate horizontally sand casting, casting occurs in the detection plate sand, scarring and porosity defects seriously affect the quality or the detection platform cause scrapped.
Summary of the invention
The present invention provides a kind of inclination die cavity low side cast to detect dull and stereotyped sand mold, raises the sand mold left end to make whole sand mold tilt to carry out the cast of die cavity right-hand member low side, reduces high temperature liquid iron to die cavity wall baking area; The sprue pouring basin that is provided with suitable for reading improves effective hydrostatic head height of molten iron liquid level and flowing velocity, makes molten iron be full of die cavity fast.
The technical solution adopted for the present invention to solve the technical problems is: be made up of pouring basin, sprue, last sand mold, detection flat board, ingate, cross gate, following sand mold and wedge shape sand pad.Detection is dull and stereotyped, ingate is located at down sand mold; Cross gate, sprue are located at sand mold, the sprue pouring basin that is provided with suitable for reading, and the height of sprue and pouring basin closes to account for and detects 17/100 of the dull and stereotyped length of side; Inclination die cavity low side cast detects dull and stereotyped left end and accounts for than the difference in height of right-hand member and detect 25/100 of the dull and stereotyped length of side, is provided with wedge shape sand pad below the sand mold.
Ingate is located at the cast of inclination die cavity low side and detects dull and stereotyped right-hand member low side.
Beneficial effect of the present invention: using inclined sand mold detects dull and stereotyped sand mold from the cast of die cavity low side, has overcome the defective that detects plate casting burning into sand, buckle and pore, and the cast of inclination die cavity low side detects flat board and improved casting qualification rate 20%.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Accompanying drawing is the longitudinal sectional view that the cast of inclination die cavity low side detects dull and stereotyped sand mold.
Among the figure 1, pouring basin, 2 sprues, 3, go up sand mold, 4, detect dull and stereotyped, 5, ingate, 6, cross gate, 7, sand mold down, 8, wedge shape sand pad.
The specific embodiment
Accompanying drawing is the longitudinal sectional view that inclination die cavity low side cast 16V180 type piston detects dull and stereotyped sand mold.In the accompanying drawings, being provided with the length of side at following sand mold 6 is that 800mm, average wall thickness are that 20mm, weight m are the detection dull and stereotyped 3 and the ingate 4 of 92.2kg16V180 type piston; Last sand mold 3 is provided with cross gate 5, sprue 2, pouring basin 1 be located at sprue 2 suitable for reading on; For improving the effective static pressure height of liquid level and the flowing velocity of molten iron, the height of sprue 2 and pouring basin 1 closes to account for and detects 17/100 of dull and stereotyped 4 length of sides, and it is 17/100 * 800=136 (mm) that the height of sprue 2 and pouring basin 1 closes; Raise the sand mold left end to make behind the last sand mold 2 of having made sand mold with the ramming of ZGS80-30H-30 wet type clay-bonded sand and play sand mold 6 mould assemblys and detect dull and stereotyped 4 inclination die cavities, the sand mold inclination afterwards is placed on left end to sand mold and accounts for above 25/100 the wedge shape sand pad 8 of wedge shape sand pad 8 length of sides than the difference in height h of right-hand member; Dull and stereotyped 4 left ends of inclination die cavity low side cast detection account for 25/100 of the dull and stereotyped length of side of detection than the difference in height h of right-hand member, and dull and stereotyped 4 left ends of inclination die cavity low side cast detection are 25/100 * 800=200 (mm) than the difference in height h of right-hand member; Calculating empirical coefficient s the duration of pouring is 2.0; Detect the minimum rate of climb of the interior molten iron liquid level of dull and stereotyped 4 die cavities of molten iron pouring time
detection=h/t=200/19.2 ≈ 10.4 (mm/s) in dull and stereotyped 4 die cavities, detect the requirement that the minimum rate of climb 10.4mm/s of the interior molten iron liquid level of dull and stereotyped 4 die cavities meets molten iron liquid level minimum rate of climb 10-20mm/s.Pour pouring basin 1 back entering sprue 2, entering cross gate 6 and ingate 5 back molten iron to melted HT200 material molten iron and in the inclination die cavity detects dull and stereotyped 4 die cavities, begin to be full of fast dull and stereotyped 4 die cavities of detection from the right-hand member low side; Reduce high temperature liquid iron to die cavity wall baking area, overcome foundry goods and detected burning into sand that dull and stereotyped 4 foundry goods produce, scab and gas hole defect.Using inclined die cavity low side cast detects dull and stereotyped 4 sand molds, has improved and has detected dull and stereotyped 4 casting qualification rate.
Ingate 5 is located at the cast of inclination die cavity low side and detects dull and stereotyped 4 right-hand member low sides.
Claims (2)
1. inclination die cavity low side cast detects dull and stereotyped sand mold, by pouring basin, sprue, go up sand mold, detect flat board, ingate, cross gate, sand mold and wedge shape sand pad are formed down, it is characterized in that: detection flat board, ingate are located at down sand mold; Cross gate, sprue are located at sand mold, and the sprue pouring basin that is provided with suitable for reading, the height of sprue and pouring basin close to account for and detect 17/100 of the dull and stereotyped length of side; Inclination die cavity low side cast detects dull and stereotyped left end and accounts for than the difference in height of right-hand member and detect 25/100 of the dull and stereotyped length of side, is provided with wedge shape sand pad below the sand mold.
2. inclination die cavity low side cast according to claim 1 detects dull and stereotyped sand mold, it is characterized in that: ingate is located at the cast of inclination die cavity low side and detects dull and stereotyped right-hand member low side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101503329A CN102672107A (en) | 2012-05-04 | 2012-05-04 | Inclined cavity low-end pouring detection flat board sand mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101503329A CN102672107A (en) | 2012-05-04 | 2012-05-04 | Inclined cavity low-end pouring detection flat board sand mould |
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| Publication Number | Publication Date |
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| CN102672107A true CN102672107A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101503329A Pending CN102672107A (en) | 2012-05-04 | 2012-05-04 | Inclined cavity low-end pouring detection flat board sand mould |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506572A (en) * | 2013-09-16 | 2014-01-15 | 郧西县神风实业有限公司 | Method for reducing internal defects of steering machine bracket casting |
| CN103736923A (en) * | 2013-11-13 | 2014-04-23 | 安徽淮化股份有限公司 | Motor vehicle brake support body casting die |
| CN105665636A (en) * | 2016-02-01 | 2016-06-15 | 唐山东方华盛优耐高科股份有限公司 | Single casting production technology |
| CN106623778A (en) * | 2016-11-30 | 2017-05-10 | 安徽应流集团霍山铸造有限公司 | Method for solving sand mould big-sized plate casting top surface porosity scabs |
| CN107913997A (en) * | 2016-10-09 | 2018-04-17 | 抚顺市鑫盛挖掘机配件制造有限公司 | A kind of sandbox uphill casting technique |
| CN108273959A (en) * | 2018-03-13 | 2018-07-13 | 云南铝业股份有限公司 | A kind of aluminium alloy large-sized thin-wall part sand casting technique |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506572A (en) * | 2013-09-16 | 2014-01-15 | 郧西县神风实业有限公司 | Method for reducing internal defects of steering machine bracket casting |
| CN103736923A (en) * | 2013-11-13 | 2014-04-23 | 安徽淮化股份有限公司 | Motor vehicle brake support body casting die |
| CN105665636A (en) * | 2016-02-01 | 2016-06-15 | 唐山东方华盛优耐高科股份有限公司 | Single casting production technology |
| CN105665636B (en) * | 2016-02-01 | 2017-12-01 | 唐山东方华盛优耐高科股份有限公司 | A kind of production technology of simple casting |
| CN107913997A (en) * | 2016-10-09 | 2018-04-17 | 抚顺市鑫盛挖掘机配件制造有限公司 | A kind of sandbox uphill casting technique |
| CN106623778A (en) * | 2016-11-30 | 2017-05-10 | 安徽应流集团霍山铸造有限公司 | Method for solving sand mould big-sized plate casting top surface porosity scabs |
| CN108273959A (en) * | 2018-03-13 | 2018-07-13 | 云南铝业股份有限公司 | A kind of aluminium alloy large-sized thin-wall part sand casting technique |
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Application publication date: 20120919 |