CN103624220A - Production technology of explosion-proof and corrosion-proof motor casing - Google Patents
Production technology of explosion-proof and corrosion-proof motor casing Download PDFInfo
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- CN103624220A CN103624220A CN201310655725.XA CN201310655725A CN103624220A CN 103624220 A CN103624220 A CN 103624220A CN 201310655725 A CN201310655725 A CN 201310655725A CN 103624220 A CN103624220 A CN 103624220A
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Abstract
The invention belongs to the field of motor casing production, and relates to a production technology of an explosion-proof and corrosion-proof motor casing. The production technology comprises the steps that a core is obtained by a core assembly casting technology and a phenolic sand molding core making method; the core is subjected to fire-proof paint flow coating and core assembly; bottom pouring and rain pouring are adopted; a pouring channel adopts a fire-proof ceramic tube; iron liquid is smelted by an electric furnace; pouring is performed; a casting blank is obtained; the blank is cleaned, then subjected to corrosion-proof spraying, and finally machined and inspected; and the finished explosion-proof and corrosion-proof motor casing is obtained. The production technology is high in finished product obtaining rate; and the motor casing is attractive in appearance, stable in performance, high in explosion-proof pressure, stable in dimension and high in corrosion-proof capacity, and meets a requirement of a special motor in the petrochemical industry.
Description
Technical field
The invention belongs to motor casing production field, be specifically related to a kind of production technology of explosion-proof, anticorrosion motor shell.
Background technology
The production field of current motor casing, main process is by original clay-bonded sand moulding, after cast iron liquid, obtains motor casing blank, through the common antirust paint of cleaning spraying, and then process machined obtains motor casing finished part.Motor casing is for petroleum chemical industry, requires motor casing to have good explosion-proof performance and anti-corrosive properties to guarantee safety; For minimum environment temperature, reach the extremely cold environment of-40 ℃, require motor casing to there are good explosion-proof performance and anti-corrosive properties to guarantee safety; Explosion-proof, anticorrosion motor housing, for the marine electric machine of marine environment, require motor casing to have good explosion-proof and antiseptic property to guarantee safety and stability.But the drawback of production method is, the motor casing blank outward appearance of acquisition is coarse, sand holes pore is many, waste product is many, easily corrosion, and product cannot meet anticorrosion explosion-proof specific (special) requirements.
Summary of the invention
The production technology that the object of this invention is to provide a kind of explosion-proof, anticorrosion motor shell, obtains that yield rate is high, beautiful appearance, stable performance, and explosion-proof pressure is strong, dimensionally stable, and antiseptic power is high.
The present invention is explosion-proof, the production technology of anticorrosion motor shell, adopt multiple-core casting technique, adopt phenolic sand molding core-making method to obtain core, core flow coat carries out core assembly after fireproof coating, adopt the cast of rising pouring rain type, running channel adopts refractory pipe, after employing electro-smelting iron liquid, pours into a mould and obtains spray, blank carries out anti-corrosion spray after cleaning, after crossing machining and check, obtains explosion proof and corrosion protection motor casing finished product.
Machining is first car one end end face and endoporus, then with this end Internal hole positioning processing other end end face and endoporus, then carries out milling footing face, then hole, tapping.
The present invention adopts multiple-core casting technique.Raw material of the present invention is commercially available.
Described phenolic sand molding core-making method is to adopt 30-50 order desert to clean sand, and the furane resins of 1.0-1.2% and the toluenesulfonic acid curing agent of the 0.4-0.6% that chiltern amount is cleaned in desert that add desert to clean chiltern amount carry out after the mixed system of flow mixer.
Described fireproof coating is to adopt alcohol radical graphite paint.
Refractory pipe is high temperature resistant 1700 ℃ of above casting refractory pipes.
Described electro-smelting iron liquid is to adopt the fusing of centreless medium-frequency induction furnace, and makes the copper that contains 0.3-0.7%wt in iron liquid.
Described anti-corrosion spray is first to spray epoxy zinc rich primer 50-80 μ m, and then spraying epoxy primer 100-140 μ m, finally sprays epoxy finish 50-80 μ m.
Adopt phenolic sand molding technique sand mold intensity high, dimensionally stable.
Flow coat alcohol radical graphite paint refractoriness is high, and surface quality of continuous castings is good.
Rising pouring rain type cast iron liquid stamp is steady, and the impurity in die cavity, gas etc. can overflow by rising head above, and the inherent tissue of foundry goods obtaining is fine and smooth, even, reduces gas hole defect.
Running channel adopts refractory pipe to prevent sand washing, reduces sand holes defect, improves the quality of products.
Adopt the electro-smelting iron liquid can purifying molten iron quality, iron liquid composition is adjusted, obtain desirable chemical composition, guarantee material requirement.
Anti-corrosion spray adopts epoxy zinc rich primer and epoxy resin coating, improves anti-corrosion capability.
Compared with prior art, the present invention has following beneficial effect:
The present invention obtains that yield rate is high, beautiful appearance, stable performance, and explosion-proof pressure is strong, dimensionally stable, and antiseptic power is high, meets the requirement of petrochemical industry special machines.
The specific embodiment
Below in conjunction with specific embodiment, invention is described further.
Embodiment 1
A kind of explosion-proof, anticorrosion motor shell of the present embodiment, adopts multiple-core casting technique, and preparation method is as follows:
Adopt 30-50 order desert to clean sand, add desert to clean 0.4% the toluenesulfonic acid curing agent of 1.2% furane resins of chiltern amount and desert cleaning chiltern amount and obtain core after the mixed system of flow mixer, core carries out core assembly after the fireproof coating of flow coat alcohol radical graphite paint, adopt the cast of rising pouring rain type, running channel adopts refractory pipe, adopt centreless medium-frequency induction furnace smelting iron liquid, the copper that contains 0.3%wt in iron liquid, iron liquid is poured into a mould and is obtained spray, again after cleaning, blank first sprays epoxy zinc rich primer 50 μ m, and then spraying epoxy primer 100 μ m, finally spray epoxy finish 60 μ m, carry out anti-corrosion spray, after crossing machining and check, obtain explosion proof and corrosion protection motor casing finished product.
The present embodiment motor casing yield rate is controlled at more than 99%, and outward appearance exquisiteness is attractive in appearance, more than explosion-proof pressure test reaches 23bar, and dimensionally stable, antiseptic power is higher than 3 times of common process.
Embodiment 2
A kind of explosion-proof, anticorrosion motor shell of the present embodiment, adopts multiple-core casting technique, and preparation method is as follows:
Adopt 30-50 order desert to clean sand, add desert to clean 0.5% the toluenesulfonic acid curing agent of 1.1% furane resins of chiltern amount and desert cleaning chiltern amount and obtain core after the mixed system of flow mixer, core carries out core assembly after the fireproof coating of flow coat alcohol radical graphite paint, adopt the cast of rising pouring rain type, running channel adopts refractory pipe, adopt centreless medium-frequency induction furnace smelting iron liquid, the copper that contains 0.6%wt in iron liquid, pour into a mould and obtain spray, again after cleaning, at blank, first spray epoxy zinc rich primer 60 μ m, and then spraying epoxy primer 110 μ m, finally spray epoxy finish 50 μ m, carry out anti-corrosion spray, after crossing machining and check, obtain explosion proof and corrosion protection motor casing finished product.
The present embodiment motor casing yield rate is controlled at more than 99.5%, and outward appearance exquisiteness is attractive in appearance, more than explosion-proof pressure test reaches 26bar, and dimensionally stable, the anticorrosion time reaches more than 10 years.
Embodiment 3
A kind of explosion-proof, anticorrosion motor shell of the present embodiment, adopts multiple-core casting technique, and preparation method is as follows:
Adopt 30-50 order desert to clean sand, add desert to clean 0.6% the toluenesulfonic acid curing agent of 1.0% furane resins of chiltern amount and desert cleaning chiltern amount and obtain core after the mixed system of flow mixer, core carries out core assembly after the fireproof coating of flow coat alcohol radical graphite paint, adopt the cast of rising pouring rain type, running channel adopts refractory pipe, adopt centreless medium-frequency induction furnace smelting iron liquid, the copper that contains 0.7%wt in iron liquid, pour into a mould and obtain spray, again after cleaning, at blank, first spray epoxy zinc rich primer 80 μ m, and then spraying epoxy primer 140 μ m, finally spray epoxy finish 70 μ m, carry out anti-corrosion spray, after crossing machining and check, obtain explosion proof and corrosion protection motor casing finished product.
The present embodiment motor casing yield rate is controlled at more than 99.2%, good appearance, and more than explosion-proof pressure test reaches 28bar, dimensionally stable, the anticorrosion time reaches more than 15 years, and explosion-proof, antiseptic property is all over requiring.
Claims (6)
1. a production technology for explosion-proof, anticorrosion motor shell, is characterized in that, step is as follows:
Adopt phenolic sand molding core-making method to obtain core, core carries out core assembly after fireproof coating through flow coat, adopt the cast of rising pouring rain type, running channel adopts refractory pipe, after adopting electro-smelting iron liquid, pour into a mould acquisition spray, blank carries out anti-corrosion spray after cleaning, after crossing machining and check, obtains explosion proof and corrosion protection motor casing finished product.
2. the production technology of explosion-proof, anticorrosion motor shell according to claim 1, it is characterized in that, it is to adopt 30-50 order desert to clean sand that phenolic sand molding core-making method obtains core, add desert to clean the furane resins of 1.0-1.2% of chiltern amount and the toluenesulfonic acid curing agent of the 0.4-0.6% of desert scouring chiltern amount, after the mixed system of flow mixer, obtain core.
3. the production technology of explosion-proof, anticorrosion motor shell according to claim 1, is characterized in that, fireproof coating is alcohol radical graphite paint.
4. the production technology of explosion-proof, anticorrosion motor shell according to claim 1, is characterized in that, refractory pipe is high temperature resistant 1700 ℃ of above casting refractory pipes.
5. the production technology of explosion-proof, anticorrosion motor shell according to claim 1, is characterized in that, contains the copper of 0.3-0.7%wt in iron liquid.
6. the production technology of explosion-proof, anticorrosion motor shell according to claim 1, is characterized in that, anti-corrosion spray is first to spray epoxy zinc rich primer 50-80 μ m, and then spray epoxy priming paint 100-140 μ m, finally sprays epoxy finish 50-80 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310655725.XA CN103624220A (en) | 2013-12-05 | 2013-12-05 | Production technology of explosion-proof and corrosion-proof motor casing |
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| CN201310655725.XA CN103624220A (en) | 2013-12-05 | 2013-12-05 | Production technology of explosion-proof and corrosion-proof motor casing |
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| CN103624220A true CN103624220A (en) | 2014-03-12 |
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| CN201310655725.XA Pending CN103624220A (en) | 2013-12-05 | 2013-12-05 | Production technology of explosion-proof and corrosion-proof motor casing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429345A (en) * | 2015-12-14 | 2016-03-23 | 重庆市科诚电机制造有限公司 | Explosion-proof electric motor |
| CN105429364A (en) * | 2015-12-14 | 2016-03-23 | 重庆市科诚电机制造有限公司 | Lift type corrosion-resistant mute electric motor |
| CN105710290A (en) * | 2014-12-04 | 2016-06-29 | 中国核工业二四建设有限公司 | Radioactive waste well cast iron cover plate casting and anti-corrosion technology |
| CN106130275A (en) * | 2016-06-28 | 2016-11-16 | 无锡新大力电机有限公司 | A kind of anti-explosion electric casing processing technique |
| CN107017737A (en) * | 2017-04-10 | 2017-08-04 | 六安强力电机有限公司 | The high efficiency Flame-Proof Three-Phase Induction Motors surface quality of continuous castings method of inspection |
| CN107414026A (en) * | 2017-08-16 | 2017-12-01 | 四川省井研卫东机械制造厂 | Using the vacuo-forming of V methods and the casting sand mold preparation method of phenolic sand molding combination process |
| CN112296258A (en) * | 2020-10-30 | 2021-02-02 | 山东省源通机械股份有限公司 | Small motor casing sand mold assembling process and assembling tool |
| CN112643001A (en) * | 2020-12-21 | 2021-04-13 | 中船重工西安东仪科工集团有限公司 | Core coating brushing process method for improving surface quality of casting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710290A (en) * | 2014-12-04 | 2016-06-29 | 中国核工业二四建设有限公司 | Radioactive waste well cast iron cover plate casting and anti-corrosion technology |
| CN105429345A (en) * | 2015-12-14 | 2016-03-23 | 重庆市科诚电机制造有限公司 | Explosion-proof electric motor |
| CN105429364A (en) * | 2015-12-14 | 2016-03-23 | 重庆市科诚电机制造有限公司 | Lift type corrosion-resistant mute electric motor |
| CN106130275A (en) * | 2016-06-28 | 2016-11-16 | 无锡新大力电机有限公司 | A kind of anti-explosion electric casing processing technique |
| CN107017737A (en) * | 2017-04-10 | 2017-08-04 | 六安强力电机有限公司 | The high efficiency Flame-Proof Three-Phase Induction Motors surface quality of continuous castings method of inspection |
| CN107414026A (en) * | 2017-08-16 | 2017-12-01 | 四川省井研卫东机械制造厂 | Using the vacuo-forming of V methods and the casting sand mold preparation method of phenolic sand molding combination process |
| CN112296258A (en) * | 2020-10-30 | 2021-02-02 | 山东省源通机械股份有限公司 | Small motor casing sand mold assembling process and assembling tool |
| CN112643001A (en) * | 2020-12-21 | 2021-04-13 | 中船重工西安东仪科工集团有限公司 | Core coating brushing process method for improving surface quality of casting |
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Application publication date: 20140312 |