CN102831993A - Mold pressing production process for SMC (sheet molding compound) insulators - Google Patents
Mold pressing production process for SMC (sheet molding compound) insulators Download PDFInfo
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- CN102831993A CN102831993A CN2012102883804A CN201210288380A CN102831993A CN 102831993 A CN102831993 A CN 102831993A CN 2012102883804 A CN2012102883804 A CN 2012102883804A CN 201210288380 A CN201210288380 A CN 201210288380A CN 102831993 A CN102831993 A CN 102831993A
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Abstract
The invention discloses a mold pressing production process for SMC (sheet molding compound) insulator, and relates to a production process for insulators. The process includes using different matrix resin, packing and auxiliaries; manufacturing an SMC sheet with high insulating performance and flame retardant property by processes of mixing, paste scraping and doffing, impregnating and thickening; and then carrying out mold pressing and solidifying for the SMC sheet and an insulator core to obtain an SMC insulator product. The insulators produced by the method have the advantages of high product strength, good electric insulating performance, convenience in construction, excellent flame retardant property and ageing resistance and low cost.
Description
Technical field
The present invention relates to a kind of production technology of insulator, be specifically related to a kind of mold pressing production technology of SMC insulator.
Background technology
Insulator is a kind of special insulation control, can in overhead transmission line, play an important role.Insulator plays two basic roles in overhead transmission line; Be support wire and prevent that electric current from going back to ground; These two effects must be guaranteed; Insulator should be owing to environment and the electric loading condition various dynamo-electric stress that causes that changes lose efficacy, otherwise insulator just can not produce great function, will damage the use and the service life of whole piece circuit.
Existing insulator is generally made by glass, pottery and rubber-like, and the insulator of glass, ceramic exists intensity difference, shortcoming that fragility is big, and color is relatively more dull; And also there is defective in the insulator that rubber is made on ageing-resistant performance.
SMC (sheet molding compound) material has that proportion is less, intensity is high, corrosion-resistant, easy-formation, ornamental advantage such as strong, is the good substitution material of traditional metal, nonmetallic materials.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned prior art, a kind of mold pressing production technology of SMC insulator is provided, the insulator of this explained hereafter has intensity height, good, the low cost and other advantages of electrical insulation capability.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of mold pressing production technology of SMC insulator; Select different matrix resins, filler and auxiliary agent for use; Through batch mixing, scrape stick with paste doff, dipping, thickening operation be made into the SMC sheet material that has than high insulating property and fire resistance; SMC sheet material and insulator core carry out molded curing and obtain SMC insulator product then, and concrete following skill step is following:
(1) batch mixing: unsaturated polyester resin and low-shrinkage resin are joined in the batch mixing still; It is 20%～63% of unsaturated polyester resin that the low-shrinkage resin adds quality; Then aluminium hydroxide, curing agent and release agent are dropped into stir mixing in the batch mixing still; Wherein aluminium hydroxide adding quality is 200%～300% of a unsaturated polyester resin, and it is 1%～3% of unsaturated polyester resin that curing agent adds quality, and it is 5%～7% of unsaturated polyester resin that release agent adds quality; At last with pigment, being separated prevents that agent, thinner and thickener from joining in the batch mixing still; Wherein pigment adding quality is 4%～7% of a unsaturated polyester resin, is separated to prevent that agent from adding quality is 2%～4.5% of unsaturated polyester resin, and it is 1.5%～3% of unsaturated polyester resin that thinner adds quality; It is 1.5%～3% of unsaturated polyester resin that thickener adds quality, obtains the SMC resin paste after mixing;
(2) scrape to stick with paste and doff: use film as carrier, the SMC resin paste is scraped to stick with paste handle, use the glass fiber processing of doffing then;
(3) dipping: the resin paste roll-in dipping that uses roll squeezer that step (2) is handled;
(4) thickening: the SMC resin paste behind the dipping is under 35 ℃～38 ℃, and thickening obtained the SMC sheet material about 16 hours;
(5) mold pressing: SMC sheet material and the composite molding under HTHP in the mould of insulator core that step (4) is obtained, fully solidify, reach 120 ℃～140 ℃ of the curing temperatures of SMC sheet material regulation through the oil heating, pressure is controlled at 5～15MPa;
(6) die sinking processing: product is taken out from mould, product surface is carried out Surface Machining, obtain the SMC insulator.
SMC insulator via above-mentioned production technology is processed has following index: rated voltage: 1500V; Maximum operating voltage: 1800V; Minimum creep distance: 250mm; Industrial frequency withstand voltage: 60Kv (doing); 45Kv (wetting); Thunder and lightning all-wave impulse withstand voltage: 105KV; Minimum stretch breaking weight: 50KN; Minimum bend breaking weight: 10KN.
Above-mentioned insulator core is that metal casting forms, and handles through zinc-plated or plastic-blasting.
Above-mentioned low-shrinkage resin can be polystyrene resin, saturated polyester resin, polyvinyl acetate or polyvinyl resin.
Above-mentioned curing agent is a peroxidized t-butyl perbenzoate.
Above-mentioned release agent is a zinc stearate.
Above-mentioned being separated prevents the BYK-W972 that agent is produced for Bi Ke chemical company.
The BYK-W996 that above-mentioned thinner produces for Bi Ke chemical company.
Above-mentioned thickener is a magnesia.
The invention has the beneficial effects as follows: adopt composite material SMC compression molding technology to produce insulator, have the following advantages:
(1) product strength is high, and especially impact strength is that glass, pottery etc. are incomparable, can effectively prevent the breakage in transportation, installation process.
(2) electrical insulation capability is good, owing to adopted special-purpose prescription, superior electrical property can be widely used in the mesolow every field.
(3) density is light relatively, easy construction.
(4) color can be customized as requested.
(5) has good flame retardant property.
(6) has ageing-resistant performance more than 30 years.
(7) relative low price can obviously be practiced thrift cost.
(8) can carry out compoundly together with metal etc., reduce the after-cost.
Embodiment
Example 1
(1) batch mixing: 220kg unsaturated polyester resin and 140kg saturated polyester resin are joined in the batch mixing still; Then 650kg aluminium hydroxide, 3kg peroxidized t-butyl perbenzoate and 12kg zinc stearate are dropped into stir mixing in the batch mixing still; At last 16kg pigment, 8kg are separated and prevent that agent BYK-W972,6.5kg thinner BYK-W996 and 5.5kg magnesia from joining in the batch mixing still, obtains the SMC resin paste after mixing;
(2) scrape to stick with paste and doff: use film as carrier, the SMC resin paste is scraped to stick with paste handle, use the glass fiber processing of doffing then;
(3) dipping: the resin paste roll-in dipping that uses roll squeezer that step (2) is handled;
(4) thickening: the SMC resin paste behind the dipping is under 35 ℃～38 ℃, and thickening obtained the SMC sheet material about 16 hours;
(5) mold pressing: the SMC sheet material that step (4) is obtained and zinc-plated metallic insulator core composite molding under HTHP in the mould, fully solidify, reach 120 ℃～140 ℃ of the curing temperatures of SMC sheet material regulation through the oil heating, pressure is controlled at 15MPa;
(5) die sinking processing: product is taken out from mould, product surface is carried out Surface Machining, obtain the SMC insulator.
SMC insulator via above-mentioned production technology is processed has: rated voltage: 1500V; Maximum operating voltage: 1800V; Creepage distance: 300mm; Industrial frequency withstand voltage: 60Kv (doing); 45Kv (wetting); Thunder and lightning all-wave impulse withstand voltage: 105KV; Tensile failure loading: 56KN; Bending failure loading: 14KN.
Example 2
(1) batch mixing: 220kg unsaturated polyester resin and 90kg polystyrene resin are joined in the batch mixing still; Then 450kg aluminium hydroxide, 3kg peroxidized t-butyl perbenzoate and 12kg zinc stearate are dropped into stir mixing in the batch mixing still; At last 10kg pigment, 5.5kg are separated and prevent that agent BYK-W972,3.5kg thinner BYK-W996 and 3.5kg magnesia from joining in the batch mixing still, obtains the SMC resin paste after mixing;
(2) scrape to stick with paste and doff: use film as carrier, the SMC resin paste is scraped to stick with paste handle, use the glass fiber processing of doffing then;
(3) dipping: the resin paste roll-in dipping that uses roll squeezer that step (2) is handled;
(4) thickening: the SMC resin paste behind the dipping is under 35 ℃～38 ℃, and thickening obtained the SMC sheet material about 16 hours;
(5) mold pressing: SMC sheet material that step (4) is obtained and zinc-plated metallic insulator core fully solidify in mould composite molding under the HTHP in it, reach 120 ℃～140 ℃ of the curing temperatures of SMC sheet material regulation through the oil heating, and pressure is controlled at 5MPa;
(5) die sinking processing: product is taken out from mould, product surface is carried out Surface Machining, obtain the SMC insulator.
SMC insulator via above-mentioned production technology is processed has: rated voltage: 1500V; Maximum operating voltage: 1800V; Creepage distance: 295mm; Industrial frequency withstand voltage: 60Kv (doing); 45Kv (wetting); Thunder and lightning all-wave impulse withstand voltage: 105KV; Tensile failure loading: 60KN; Bending failure loading: 15KN.
Example 3
(1) batch mixing: 220kg unsaturated polyester resin and 40kg polyvinyl acetate are joined in the batch mixing still; Then 550kg aluminium hydroxide, 3kg peroxidized t-butyl perbenzoate and 12kg zinc stearate are dropped into stir mixing in the batch mixing still; At last 13kg pigment, 7kg are separated and prevent that agent BYK-W972,5kg thinner BYK-W996 and 4kg magnesia from joining in the batch mixing still, obtains the SMC resin paste after mixing;
(2) scrape to stick with paste and doff: use film as carrier, the SMC resin paste is scraped to stick with paste handle, use the glass fiber processing of doffing then;
(3) dipping: the resin paste roll-in dipping that uses roll squeezer that step (2) is handled;
(4) thickening: the SMC resin paste behind the dipping is under 35 ℃～38 ℃, and thickening obtained the SMC sheet material about 16 hours;
(5) mold pressing: the SMC sheet material that step (4) is obtained and zinc-plated metallic insulator core composite molding under HTHP in the mould, fully solidify, reach 120 ℃～140 ℃ of the curing temperatures of SMC sheet material regulation through the oil heating, pressure is controlled at 10MPa;
(5) die sinking processing: product is taken out from mould, product surface is carried out Surface Machining, obtain the SMC insulator.
SMC insulator via above-mentioned production technology is processed has: rated voltage: 1500V; Maximum operating voltage: 1800V; Creepage distance: 310mm; Industrial frequency withstand voltage: 60Kv (doing); 45Kv (wetting); Thunder and lightning all-wave impulse withstand voltage: 105KV; Tensile failure loading: 61KN; Bending failure loading: 17KN.
Example 4
(1) batch mixing: 220kg unsaturated polyester resin and 40kg polyvinyl resin are joined in the batch mixing still; Then 500kg aluminium hydroxide, 3kg peroxidized t-butyl perbenzoate and 12kg zinc stearate are dropped into stir mixing in the batch mixing still; At last 12kg pigment, 6.5kg are separated and prevent that agent BYK-W972,4.5kg thinner BYK-W996 and 4.5kg magnesia from joining in the batch mixing still, obtains the SMC resin paste after mixing;
(2) scrape to stick with paste and doff: use film as carrier, the SMC resin paste is scraped to stick with paste handle, use the glass fiber processing of doffing then;
(3) dipping: the resin paste roll-in dipping that uses roll squeezer that step (2) is handled;
(4) thickening: the SMC resin paste behind the dipping is under 35 ℃～38 ℃, and thickening obtained the SMC sheet material about 16 hours;
(5) mold pressing: the SMC sheet material that step (4) is obtained and zinc-plated metallic insulator core composite molding under HTHP in the mould, fully solidify, reach 120 ℃～140 ℃ of the curing temperatures of SMC sheet material regulation through the oil heating, pressure is controlled at 10MPa;
(5) die sinking processing: product is taken out from mould, product surface is carried out Surface Machining, obtain the SMC insulator.
SMC insulator via above-mentioned production technology is processed has: rated voltage: 1500V; Maximum operating voltage: 1800V; Creepage distance: 306mm; Industrial frequency withstand voltage: 60Kv (doing); 45Kv (wetting); Thunder and lightning all-wave impulse withstand voltage: 105KV; Tensile failure loading: 62KN; Bending failure loading: 20KN.
Claims (8)
1. the mold pressing production technology of a SMC insulator; It is characterized in that selecting for use different matrix resins, filler and auxiliary agent; Through batch mixing, scrape stick with paste doff, dipping, thickening operation be made into the SMC sheet material that has than high insulating property and fire resistance; SMC sheet material and insulator core carry out molded curing and obtain SMC insulator product then, and concrete processing step is following:
(1) batch mixing: unsaturated polyester resin and low-shrinkage resin are joined in the batch mixing still; It is 20%～63% of unsaturated polyester resin that the low-shrinkage resin adds quality; Then aluminium hydroxide, curing agent and release agent are dropped into stir mixing in the batch mixing still; Wherein aluminium hydroxide adding quality is 200%～300% of a unsaturated polyester resin, and it is 1%～3% of unsaturated polyester resin that curing agent adds quality, and it is 5%～7% of unsaturated polyester resin that release agent adds quality; At last with pigment, being separated prevents that agent, thinner and thickener from joining in the batch mixing still; Wherein pigment adding quality is 4%～7% of a unsaturated polyester resin, is separated to prevent that agent from adding quality is 2%～4.5% of unsaturated polyester resin, and it is 1.5%～3% of unsaturated polyester resin that thinner adds quality; It is 1.5%～3% of unsaturated polyester resin that thickener adds quality, obtains the SMC resin paste after mixing;
(2) scrape to stick with paste and doff: use film as carrier, the SMC resin paste is scraped to stick with paste handle, use the glass fiber processing of doffing then;
(3) dipping: the resin paste roll-in dipping that uses roll squeezer that step (2) is handled;
(4) thickening: the SMC resin paste behind the dipping is under 35 ℃～38 ℃, and thickening obtained the SMC sheet material about 16 hours;
(5) mold pressing: SMC sheet material and the composite molding under HTHP in the mould of insulator core that step (4) is obtained, fully solidify, reach 120 ℃～140 ℃ of the curing temperatures of SMC sheet material regulation through the oil heating, pressure is controlled at 5～15MPa;
(6) die sinking processing: product is taken out from mould, product surface is carried out Surface Machining, obtain the SMC insulator.
2. the mold pressing production technology of SMC insulator according to claim 1 is characterized in that the insulator core is that metal casting forms, and handles through zinc-plated or plastic-blasting.
3. the mold pressing production technology of SMC insulator according to claim 1 is characterized in that the low-shrinkage resin can be polystyrene resin, saturated polyester resin, polyvinyl acetate or polyvinyl resin.
4. the mold pressing production technology of SMC insulator according to claim 1 is characterized in that curing agent is a peroxidized t-butyl perbenzoate.
5. the mold pressing production technology of SMC insulator according to claim 1 is characterized in that release agent is a zinc stearate.
6. the mold pressing production technology of SMC insulator according to claim 1, it is characterized in that being separated prevents the BYK-W972 that agent is produced for Bi Ke chemical company.
7. the mold pressing production technology of SMC insulator according to claim 1 is characterized in that the BYK-W996 that thinner produces for Bi Ke chemical company.
8. the mold pressing production technology of SMC insulator according to claim 1 is characterized in that thickener is a magnesia.
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| CN2012102883804A CN102831993A (en) | 2012-08-10 | 2012-08-10 | Mold pressing production process for SMC (sheet molding compound) insulators |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104017385A (en) * | 2014-05-30 | 2014-09-03 | 浙江长兴四达复合材料有限公司 | Resin composition, prepreg, composite plate, and preparation method and applications of the composite plate |
| CN106167609A (en) * | 2016-08-05 | 2016-11-30 | 振石集团华美新材料有限公司 | A kind of high flow flame-proof sheet molding compound and preparation method thereof |
| CN107501985A (en) * | 2017-09-30 | 2017-12-22 | 句容市大唐电气有限公司 | A kind of anti-flammability glass fiber reinforced unsaturated polyester plastic and its production technology |
| CN107603180A (en) * | 2017-09-30 | 2018-01-19 | 句容市大唐电气有限公司 | A kind of glass fiber reinforced unsaturated polyester plastic and its production technology |
| CN107603163A (en) * | 2017-09-30 | 2018-01-19 | 句容市大唐电气有限公司 | A kind of polyester glass fiber enhancing moulding compound and its production technology |
| CN107658079A (en) * | 2017-10-13 | 2018-02-02 | 镇江市丹高电器有限公司 | A kind of insulator of high intensity |
| CN109616267A (en) * | 2018-12-27 | 2019-04-12 | 嘉善步莱特新材料科技有限公司 | A kind of sub- production technology of colorful insulation that coloring effect is good |
| CN109880395A (en) * | 2018-12-25 | 2019-06-14 | 宜兴市兴南复合材料厂有限公司 | The preparation method of photovoltaic high fire-retardance resin |
| CN111370269A (en) * | 2020-03-20 | 2020-07-03 | 安瑞普科技(深圳)有限公司 | Circuit breaker side plate processing technology, composite material and product |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017385A (en) * | 2014-05-30 | 2014-09-03 | 浙江长兴四达复合材料有限公司 | Resin composition, prepreg, composite plate, and preparation method and applications of the composite plate |
| CN106167609A (en) * | 2016-08-05 | 2016-11-30 | 振石集团华美新材料有限公司 | A kind of high flow flame-proof sheet molding compound and preparation method thereof |
| CN107501985A (en) * | 2017-09-30 | 2017-12-22 | 句容市大唐电气有限公司 | A kind of anti-flammability glass fiber reinforced unsaturated polyester plastic and its production technology |
| CN107603180A (en) * | 2017-09-30 | 2018-01-19 | 句容市大唐电气有限公司 | A kind of glass fiber reinforced unsaturated polyester plastic and its production technology |
| CN107603163A (en) * | 2017-09-30 | 2018-01-19 | 句容市大唐电气有限公司 | A kind of polyester glass fiber enhancing moulding compound and its production technology |
| CN107658079A (en) * | 2017-10-13 | 2018-02-02 | 镇江市丹高电器有限公司 | A kind of insulator of high intensity |
| CN107658079B (en) * | 2017-10-13 | 2024-04-05 | 镇江市丹高电器有限公司 | High-strength insulator |
| CN109880395A (en) * | 2018-12-25 | 2019-06-14 | 宜兴市兴南复合材料厂有限公司 | The preparation method of photovoltaic high fire-retardance resin |
| CN109616267A (en) * | 2018-12-27 | 2019-04-12 | 嘉善步莱特新材料科技有限公司 | A kind of sub- production technology of colorful insulation that coloring effect is good |
| CN109616267B (en) * | 2018-12-27 | 2021-09-17 | 嘉善步莱特新材料科技有限公司 | Production process of colored insulator with good coloring effect |
| CN111370269A (en) * | 2020-03-20 | 2020-07-03 | 安瑞普科技(深圳)有限公司 | Circuit breaker side plate processing technology, composite material and product |
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Application publication date: 20121219 |