CN101890481A - Alloy bulb tube casting production technology - Google Patents
Alloy bulb tube casting production technology Download PDFInfo
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- CN101890481A CN101890481A CN2010102277364A CN201010227736A CN101890481A CN 101890481 A CN101890481 A CN 101890481A CN 2010102277364 A CN2010102277364 A CN 2010102277364A CN 201010227736 A CN201010227736 A CN 201010227736A CN 101890481 A CN101890481 A CN 101890481A
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Abstract
The invention discloses alloy bulb tube casting production technology, which comprises casting mold manufacture, pouring operation and subsequent operation in turn. The casting mold manufacture comprises the following steps of: freezing a mold core by using a hardening agent, and coating an adhesive and fine sand powder on the mold core; burying the mold core in a sand mold box, filling and compacting by using molding sand, and heating to smelt the mold core so as to form a casting mold blank; and drying the casting mold blank to obtain the casting mold. The pouring operation comprises the following steps of: preheating the casting mold, and coating thermal insulation materials on an inner surface of the preheated casting mold; keeping the temperature; injecting casting melt liquid into a cavity along the sprue of the casting mold at the temperature of between 1,400 and 1,450 DEG C for 8 to 20 seconds; and keeping the temperature of the castings for 60 to 90 minutes to ensure the casting yield is 45 to 60 percent. The alloy bulb tube casting production technology has the advantages of simple casting process, high production efficiency, better pouring quality, and better mechanical property of the castings.
Description
Technical field
The present invention relates to a kind of manufacture method of bulb, relate in particular to a kind of casting production process of alloy bulb tube, specifically be applicable to the monoblock cast of alloy bulb tube.
Background technology
The range of application of bulb is wider, and as the power output channel of water supply gas pipeline, valve etc., its basic configuration mainly comprises three parts: the stub end at middle straight tube and two ends thereof and ring flange socket end, common manufacture method are mainly the pipe die casting.
The Chinese patent publication number is CN1468675A, and the patent of invention that open day is on January 21st, 2004 discloses the effective pipe die of a kind of centrifugal casting spheroidal graphite cast-iron, and it becomes split type pipe die by independent socket section, body straight section and faucet section connection.Can reduce manufacture difficulty though this invention merotomizes pipe die to make respectively, be convenient to change, because it needs casting respectively, and after casting, assemble, related to the fitness problem, the casting process complexity, increase the casting difficulty, and reduced production efficiency.
Summary of the invention
The objective of the invention is to overcome lower defective and the problem of casting process complexity, production efficiency that exists in the prior art, the casting production process of the alloy bulb tube that a kind of casting process is simple, production efficiency is higher is provided.
For realizing above purpose, technical solution of the present invention is: a kind of casting production process of alloy bulb tube, and this production technology comprises casting mold making, pouring operation and subsequent operation successively;
Described casting mold is made and is meant: earlier with the freezing core rod of making of curing agent, on core rod, apply bonding agent and fine sand powder again, and make it to freeze together with core rod, then core rod is imbedded in the sand mould box, and around it, tamp, compress with molding sand, heat again and melt core rod to form the casting mold blank, then the casting mold blank is dried, bake out temperature is 40-60 ℃, can obtain casting mold after the oven dry;
Described pouring operation is meant: earlier casting mold is carried out preheating, preheat temperature is 200-300 ℃, and be 4 hours preheating time, the inner surface of the casting mold after preheating is smeared insulation material again, be incubated then, holding temperature is 150-200 ℃, and temperature retention time is 10-20 minute, again the foundry goods liquation is injected die cavity along the sprue gate of casting mold, pouring temperature is 1400-1450 ℃, and be 8-20 second the duration of pouring, carries out casting parts thermal insulation then, the casting parts thermal insulation time is 60-90 minute, and product yield is 45%-60%.
Described pouring temperature is 1440 ℃, and be 8-12 second the duration of pouring, and the casting parts thermal insulation time is 80 minutes, and product yield is 51%.
The tapping temperature of described foundry goods liquation is 1500-1550 ℃.
Described curing agent is that mass percent concentration is the liquor alumini chloridi of 5%-15%.
The constituent of described insulation material be quartz sand, quartzy fine powder and fire-resistant on.
Compared with prior art, beneficial effect of the present invention is:
1, be the monoblock cast mode owing to what take in the casting production process of a kind of alloy bulb tube of the present invention, overall flow is clear, the operating procedure maturation, do not have the problem that cooperates again after the casting, thereby production efficiency is higher, in addition, application requirements at bulb, the present invention has not only emphasized the corresponding pouring temperature and the duration of pouring, and has increased the insulation operation, has improved casting quality.Therefore not only casting process is simple in the present invention, and production efficiency is higher.
2, since in the casting production process of a kind of alloy bulb tube of the present invention at the casting requirement of alloy bulb tube, the method of having taked the freezing coremaking of curing agent is to make casting mold, not only be convenient to operation, and molding effect is better, has retractility preferably during cast, can not break, what help pouring into a mould carries out smoothly, can improve the mechanical performance of foundry goods.Therefore not only casting quality is better in the present invention, and the mechanical performance of foundry goods is higher.
The specific embodiment
The present invention is further detailed explanation below in conjunction with the specific embodiment
A kind of casting production process of alloy bulb tube, this production technology comprises casting mold making, pouring operation and subsequent operation successively;
Special feature of the present invention is that the casting mold making is meant: earlier with the freezing core rod of making of curing agent, on core rod, apply bonding agent and fine sand powder again, and make it to freeze together with core rod, then core rod is imbedded in the sand mould box, and around it, tamp, compress with molding sand, heat again and melt core rod to form the casting mold blank, then the casting mold blank is dried, bake out temperature is 40-60 ℃, can obtain casting mold after the oven dry; Preferred setting agent is that mass percent concentration is the liquor alumini chloridi of 5%-15%;
Described pouring operation is meant: earlier casting mold is carried out preheating, preheat temperature is 200-300 ℃, and be 4 hours preheating time, the inner surface of the casting mold after preheating is smeared insulation material again, be incubated then, holding temperature is 150-200 ℃, and temperature retention time is 10-20 minute, again the foundry goods liquation is injected die cavity along the sprue gate of casting mold, pouring temperature is 1400-1450 ℃, and be 8-20 second the duration of pouring, carries out casting parts thermal insulation then, the casting parts thermal insulation time is 60-90 minute, and product yield is 45%-60%; The tapping temperature of preferred foundry goods liquation is 1500-1550 ℃, and the constituent of insulation material is quartz sand, quartzy fine powder and seat clay;
Further preferred pouring temperature is 1440 ℃, and be 8-12 second the duration of pouring, and the casting parts thermal insulation time is 80 minutes, and product yield is 51%.
Embodiment 1:
A kind of casting production process of alloy bulb tube, this production technology comprises casting mold making, pouring operation and subsequent operation successively;
Described casting mold is made and is meant: earlier with the freezing core rod of making of curing agent, on core rod, apply bonding agent and fine sand powder again, and make it to freeze together with core rod, then core rod is imbedded in the sand mould box, and around it, tamped, compress, heat again and melt core rod to form the casting mold blank with molding sand, then the casting mold blank is dried, bake out temperature is 50 ℃, can obtain casting mold after the oven dry, and curing agent is that mass percent concentration is 10% liquor alumini chloridi;
Described pouring operation is meant: earlier casting mold is carried out preheating, preheat temperature is 250 ℃, be 4 hours preheating time, the inner surface of the casting mold after preheating is smeared insulation material again, the constituent of insulation material is quartz sand, quartzy fine powder and seat clay, be incubated then, holding temperature is 180 ℃, and temperature retention time is 15 minutes, again the foundry goods liquation is injected die cavity along the sprue gate of casting mold, tapping temperature is 1520 ℃, pouring temperature is 1440 ℃, and be 10 seconds the duration of pouring, carries out casting parts thermal insulation then, the casting parts thermal insulation time is 80 minutes, and product yield is 51%.
Therefore not only casting process is simple in the present invention, production efficiency is higher, and casting quality is better, the better mechanical property of foundry goods.
The above only is a better embodiment of the present invention; protection scope of the present invention is not exceeded with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (5)
1. the casting production process of an alloy bulb tube, this production technology comprises casting mold making, pouring operation and subsequent operation successively, it is characterized in that:
Described casting mold is made and is meant: earlier with the freezing core rod of making of curing agent, on core rod, apply bonding agent and fine sand powder again, and make it to freeze together with core rod, then core rod is imbedded in the sand mould box, and around it, tamp, compress with molding sand, heat again and melt core rod to form the casting mold blank, then the casting mold blank is dried, bake out temperature is 40-60 ℃, can obtain casting mold after the oven dry;
Described pouring operation is meant: earlier casting mold is carried out preheating, preheat temperature is 200-300 ℃, and be 4 hours preheating time, the inner surface of the casting mold after preheating is smeared insulation material again, be incubated then, holding temperature is 150-200 ℃, and temperature retention time is 10-20 minute, again the foundry goods liquation is injected die cavity along the sprue gate of casting mold, pouring temperature is 1400-1450 ℃, and be 8-20 second the duration of pouring, carries out casting parts thermal insulation then, the casting parts thermal insulation time is 60-90 minute, and product yield is 45%-60%.
2. the casting production process of a kind of alloy bulb tube according to claim 1, it is characterized in that: described pouring temperature is 1440 ℃, and be 8-12 second the duration of pouring, and the casting parts thermal insulation time is 80 minutes, and product yield is 51%.
3. the casting production process of a kind of alloy bulb tube according to claim 1 and 2, it is characterized in that: the tapping temperature of described foundry goods liquation is 1500-1550 ℃.
4. the casting production process of a kind of alloy bulb tube according to claim 1 and 2, it is characterized in that: described curing agent is that mass percent concentration is the liquor alumini chloridi of 5%-15%.
5. the casting production process of a kind of alloy bulb tube according to claim 1 and 2, it is characterized in that: the constituent of described insulation material is quartz sand, quartzy fine powder and seat clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102277364A CN101890481A (en) | 2010-07-16 | 2010-07-16 | Alloy bulb tube casting production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102277364A CN101890481A (en) | 2010-07-16 | 2010-07-16 | Alloy bulb tube casting production technology |
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| CN101890481A true CN101890481A (en) | 2010-11-24 |
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| CN2010102277364A Pending CN101890481A (en) | 2010-07-16 | 2010-07-16 | Alloy bulb tube casting production technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641989A (en) * | 2012-05-14 | 2012-08-22 | 董义盛 | Ice fire casting |
| CN102873275A (en) * | 2012-09-28 | 2013-01-16 | 西安航空动力股份有限公司 | Fixing method of isometric crystal and columnar crystal ceramic mold core in mold shell |
| CN104550709A (en) * | 2014-12-09 | 2015-04-29 | 新昌县通用机械有限公司 | Copper insert casting production process |
| CN104999059A (en) * | 2015-07-20 | 2015-10-28 | 柳州市建西机械铸造厂 | Heat treatment process of cast parts |
| CN107716844A (en) * | 2017-09-29 | 2018-02-23 | 吴江市液铸液压件铸造有限公司 | A kind of processing technology of automobile output shaft casting |
| CN113909438A (en) * | 2021-09-27 | 2022-01-11 | 汤阴县腾龙合金精铸有限公司 | Combined process method for precisely forming shell mold |
-
2010
- 2010-07-16 CN CN2010102277364A patent/CN101890481A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641989A (en) * | 2012-05-14 | 2012-08-22 | 董义盛 | Ice fire casting |
| CN102873275A (en) * | 2012-09-28 | 2013-01-16 | 西安航空动力股份有限公司 | Fixing method of isometric crystal and columnar crystal ceramic mold core in mold shell |
| CN102873275B (en) * | 2012-09-28 | 2014-09-17 | 西安航空动力股份有限公司 | Fixing method of isometric crystal and columnar crystal ceramic mold core in mold shell |
| CN104550709A (en) * | 2014-12-09 | 2015-04-29 | 新昌县通用机械有限公司 | Copper insert casting production process |
| CN104999059A (en) * | 2015-07-20 | 2015-10-28 | 柳州市建西机械铸造厂 | Heat treatment process of cast parts |
| CN107716844A (en) * | 2017-09-29 | 2018-02-23 | 吴江市液铸液压件铸造有限公司 | A kind of processing technology of automobile output shaft casting |
| CN113909438A (en) * | 2021-09-27 | 2022-01-11 | 汤阴县腾龙合金精铸有限公司 | Combined process method for precisely forming shell mold |
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Application publication date: 20101124 |