CN102516757A - Abrasion-resistant plastic gear and manufacturing method thereof - Google Patents
Abrasion-resistant plastic gear and manufacturing method thereof Download PDFInfo
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- CN102516757A CN102516757A CN2011103745455A CN201110374545A CN102516757A CN 102516757 A CN102516757 A CN 102516757A CN 2011103745455 A CN2011103745455 A CN 2011103745455A CN 201110374545 A CN201110374545 A CN 201110374545A CN 102516757 A CN102516757 A CN 102516757A
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Abstract
The invention discloses an abrasion-resistant plastic gear and a manufacturing method thereof. The method mainly comprises the following steps of: adding dried and proportioned raw materials into a heated injection molding machine, setting injection pressure, speed, time and glue quantity of different stages of the injection molding machine, setting final protective pressure and protective pressure speed to achieve an optimal injection molding technology, and thus obtaining a final qualified product. The method overcomes the physical property defects of whitening, breakage, poor toughness, low strength and the like when the abrasion-resistant plastic gear is formed by injection molding; and the injection molding technology has stability, the obtained product is stable in quality, the production efficiency is improved, and the production cost is reduced.
Description
Background technology
The present invention relates to a kind of wear-resistant plastic gear and method of manufacture thereof, belong to machinery manufacturing technology field.
Background technology
Plastic gear just develops towards bigger size, more complicated geometrical shape, more high-intensity direction; The matrix material of performance resins and roving glass fiber filling has simultaneously played important pushing effect; Plastic gear 50 years back warps have in the past been gone through a variation course from type material to important Industrial materials; Today, they were deep in many different Application Areass; Like automobile, wrist-watch, sewing machine, structure control facility and guided missile etc., play the effect of transmitting moment of torsion and mode of motion.
More advanced plastic gear forming method is developed, like the double injection molding method, through elastomeric method of design between the wheel shaft and the gear teeth; It is quieter that gear is moved; When gear shut down suddenly, absorbed oscillation avoided the gear teeth to damage preferably.
Summary of the invention
For deficiency and the defective of alleviating prior art; The object of the present invention is to provide a kind of wear-resistant plastic gear and method of manufacture thereof; The wear-resistant plastic gear product when moulding that the invention solves injection moulding is prone to and draws physicals defectives such as white, fracture, poor toughness, intensity be low, this Shooting Technique stability simultaneously, products obtained therefrom steady quality; Improve production efficiency, reduced production cost.
The present invention adopts following technical scheme to achieve these goals:
The wear-resistant plastic gear is characterized in that its constitutive material comprises compsn A and compsn B, described compsn A: nylon 66 45-55 parts and nylon 66+30%GF 45-55 part; Compsn B: trevira 20-35 part, spun glass 10-15 part, polyphenylmethyl olefin(e) acid methyl esters 5-10 part, high wear-resistant carbon black 5-10 part, Zeo-karb 3-5 part, terra alba 5-10 part, aluminum oxide 5-10 part, Triple Pressed Stearic Acid 3-8 part, silica flour 3-5 part, tetrafluoroethylene 5-15 part, organic carbon 3-5 part and kaolin 5-10 part.
The method of manufacture of described wear-resistant plastic gear is characterized in that may further comprise the steps:
(1) with carrying out drying treatment behind nylon 66 and the nylon 66+30%GF raw material ratio, drying temperature is 100-120 ℃, and be 4-6 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(2) weight part by compsn B raw material takes by weighing each raw material, carries out drying treatment, and drying temperature is 120-150 ℃, and be 3-5 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(3) injection moulding machine is sent in two groups of drying is good starting material mixing;
(4) temperature of injection moulding machine heating zone is set: first section 290 ± 5 ℃, second section 285 ± 5 ℃, the 3rd section 280 ± 5 ℃, the 4th section 275 ± 5 ℃, the 5th section 260 ± 5 ℃;
(5) injection moulding section molding technique parameter:
The lower velocity injection of the middle pressure of a, first section employing 65-70Mpa, 40-50m/s, be 1.0-1.5 second inject time, the 78-80% of injection glue amount to product;
The lower velocity injection of the middle pressure of b, second section employing 60-80Mpa, 25-35m/s, be 1.0-1.5 second inject time, injection glue amount is to 100% of the product mouth of a river;
(6) moulding, the demoulding.
Beneficial effect of the present invention:
The wear-resistant plastic gear product when moulding that the invention solves injection moulding is prone to and draws physicals defectives such as white, fracture, poor toughness, intensity be low; This Shooting Technique is stable simultaneously; The products obtained therefrom steady quality has improved production efficiency, has reduced production cost.
Embodiment
Embodiment 1: wear-resistant plastic gear, its constitutive material comprise compsn A and compsn B, described compsn A: 45 parts of 6645 parts of nylon and nylon 66+30%GF; Compsn B: 5 parts of 20 parts on trevira, 10 parts in spun glass, 5 parts of polyphenylmethyl olefin(e) acid methyl esters, 5 parts of high wear-resistant carbon blacks, 3 parts of Zeo-karbs, 5 parts of terra albas, 5 parts in aluminum oxide, 3 parts of Triple Pressed Stearic Acid, 3 parts of silica flours, 5 parts of tetrafluoroethylene, 3 parts of organic carbons and kaolin.
The method of manufacture of wear-resistant plastic gear may further comprise the steps:
(1) with carrying out drying treatment behind nylon 66 and the nylon 66+30%GF raw material ratio, drying temperature is 100-120 ℃, and be 4-6 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(2) weight part by compsn B raw material takes by weighing each raw material, carries out drying treatment, and drying temperature is 120-150 ℃, and be 3-5 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(3) injection moulding machine is sent in two groups of drying is good starting material mixing;
(4) temperature of injection moulding machine heating zone is set: first section 290 ± 5 ℃, second section 285 ± 5 ℃, the 3rd section 280 ± 5 ℃, the 4th section 275 ± 5 ℃, the 5th section 260 ± 5 ℃;
(5) injection moulding section molding technique parameter:
The lower velocity injection of the middle pressure of a, first section employing 65-70Mpa, 40-50m/s, be 1.0-1.5 second inject time, the 78-80% of injection glue amount to product;
The lower velocity injection of the middle pressure of b, second section employing 60-80Mpa, 25-35m/s, be 1.0-1.5 second inject time, injection glue amount is to 100% of the product mouth of a river;
(6) moulding, the demoulding.
Embodiment 2: wear-resistant plastic gear, its constitutive material comprise compsn A and compsn B, described compsn A: 55 parts of 6655 parts of nylon and nylon 66+30%GF; Compsn B: 10 parts of 35 parts on trevira, 15 parts in spun glass, 10 parts of polyphenylmethyl olefin(e) acid methyl esters, 10 parts of high wear-resistant carbon blacks, 5 parts of Zeo-karbs, 10 parts of terra albas, 10 parts in aluminum oxide, 8 parts of Triple Pressed Stearic Acid, 5 parts of silica flours, 15 parts of tetrafluoroethylene, 5 parts of organic carbons and kaolin.
The method of manufacture of wear-resistant plastic gear may further comprise the steps:
(1) with carrying out drying treatment behind nylon 66 and the nylon 66+30%GF raw material ratio, drying temperature is 100-120 ℃, and be 4-6 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(2) weight part by compsn B raw material takes by weighing each raw material, carries out drying treatment, and drying temperature is 120-150 ℃, and be 3-5 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(3) injection moulding machine is sent in two groups of drying is good starting material mixing;
(4) temperature of injection moulding machine heating zone is set: first section 290 ± 5 ℃, second section 285 ± 5 ℃, the 3rd section 280 ± 5 ℃, the 4th section 275 ± 5 ℃, the 5th section 260 ± 5 ℃;
(5) injection moulding section molding technique parameter:
The lower velocity injection of the middle pressure of a, first section employing 65-70Mpa, 40-50m/s, be 1.0-1.5 second inject time, the 78-80% of injection glue amount to product;
The lower velocity injection of the middle pressure of b, second section employing 60-80Mpa, 25-35m/s, be 1.0-1.5 second inject time, injection glue amount is to 100% of the product mouth of a river;
(6) moulding, the demoulding.
Embodiment 3: the Performance Detection of the wear-resistant plastic gear that the present invention makes:
Claims (2)
1. a wear-resistant plastic gear is characterized in that its constitutive material comprises compsn A and compsn B, described compsn A: nylon 66 45-55 parts and nylon 66+30%GF 45-55 part; Compsn B: trevira 20-35 part, spun glass 10-15 part, polyphenylmethyl olefin(e) acid methyl esters 5-10 part, high wear-resistant carbon black 5-10 part, Zeo-karb 3-5 part, terra alba 5-10 part, aluminum oxide 5-10 part, Triple Pressed Stearic Acid 3-8 part, silica flour 3-5 part, tetrafluoroethylene 5-15 part, organic carbon 3-5 part and kaolin 5-10 part.
2. the method for manufacture of a wear-resistant plastic gear as claimed in claim 1 is characterized in that may further comprise the steps:
(1) with carrying out drying treatment behind nylon 66 and the nylon 66+30%GF raw material ratio, drying temperature is 100-120 ℃, and be 4-6 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(2) weight part by compsn B raw material takes by weighing each raw material, carries out drying treatment, and drying temperature is 120-150 ℃, and be 3-5 hour time of drying, mixes, and adds dryer, dries 24-28h down at 140-160 ℃;
(3) injection moulding machine is sent in two groups of drying is good starting material mixing;
(4) temperature of injection moulding machine heating zone is set: first section 290 ± 5 ℃, second section 285 ± 5 ℃, the 3rd section 280 ± 5 ℃, the 4th section 275 ± 5 ℃, the 5th section 260 ± 5 ℃;
(5) injection moulding section molding technique parameter:
The middle pressure of a, first section employing 65-70 Mpa, the lower velocity injection of 40-50m/s, be 1.0-1.5 second inject time, the 78-80% of injection glue amount to product;
The middle pressure of b, second section employing 60-80 Mpa, the lower velocity injection of 25-35m/s, be 1.0-1.5 second inject time, injection glue amount is to 100% of the product mouth of a river;
(6) moulding, the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103745455A CN102516757A (en) | 2011-11-23 | 2011-11-23 | Abrasion-resistant plastic gear and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103745455A CN102516757A (en) | 2011-11-23 | 2011-11-23 | Abrasion-resistant plastic gear and manufacturing method thereof |
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| CN102516757A true CN102516757A (en) | 2012-06-27 |
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| CN2011103745455A Pending CN102516757A (en) | 2011-11-23 | 2011-11-23 | Abrasion-resistant plastic gear and manufacturing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993728A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Instrument sheath with raw materials containing ASA (acrylonitrile styrene acrylate) resins |
| CN102993724A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Plastic socket, manufacturing method thereof and application of plastic socket on automobile |
| CN102993731A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Manufacturing process of instrument socket |
| CN102993726A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Low-temperature-resistant nylon PA66 composite material as well as preparation method thereof and application thereof to automobiles |
| CN102993719A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Volcanic modified nylon PA66 granular material and preparation method and application thereof to automobiles |
| CN102993745A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Manufacturing method of plastic socket sheath and application of plastic socket sheath on automobile |
| CN103242653A (en) * | 2012-08-20 | 2013-08-14 | 安徽凯迪电气有限公司 | High-gloss nylon PA66 composite material, preparation method thereof and application thereof to automobiles |
| CN103275489A (en) * | 2013-06-21 | 2013-09-04 | 苏州新区特氟龙塑料制品厂 | Friction resistance plastic |
| CN105196467A (en) * | 2015-09-24 | 2015-12-30 | 富阳多宝电子有限公司 | Method for manufacturing planet wheel seat |
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2011
- 2011-11-23 CN CN2011103745455A patent/CN102516757A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103242653A (en) * | 2012-08-20 | 2013-08-14 | 安徽凯迪电气有限公司 | High-gloss nylon PA66 composite material, preparation method thereof and application thereof to automobiles |
| CN102993724A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Plastic socket, manufacturing method thereof and application of plastic socket on automobile |
| CN102993731A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Manufacturing process of instrument socket |
| CN102993726A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Low-temperature-resistant nylon PA66 composite material as well as preparation method thereof and application thereof to automobiles |
| CN102993719A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Volcanic modified nylon PA66 granular material and preparation method and application thereof to automobiles |
| CN102993745A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Manufacturing method of plastic socket sheath and application of plastic socket sheath on automobile |
| CN102993728A (en) * | 2012-08-20 | 2013-03-27 | 安徽凯迪电气有限公司 | Instrument sheath with raw materials containing ASA (acrylonitrile styrene acrylate) resins |
| CN102993726B (en) * | 2012-08-20 | 2014-05-14 | 安徽凯迪电气有限公司 | Low-temperature-resistant nylon PA66 composite material as well as preparation method thereof and application thereof to automobiles |
| CN102993745B (en) * | 2012-08-20 | 2015-01-14 | 安徽凯迪电气有限公司 | Manufacturing method of plastic socket sheath and application of plastic socket sheath on automobile |
| CN103242653B (en) * | 2012-08-20 | 2015-11-25 | 安徽凯迪电气有限公司 | A kind of high gloss nylon PA66 matrix material and preparation method thereof and the application on automobile |
| CN103275489A (en) * | 2013-06-21 | 2013-09-04 | 苏州新区特氟龙塑料制品厂 | Friction resistance plastic |
| CN105196467A (en) * | 2015-09-24 | 2015-12-30 | 富阳多宝电子有限公司 | Method for manufacturing planet wheel seat |
| CN105196467B (en) * | 2015-09-24 | 2018-03-09 | 杭州多宝电子有限公司 | A kind of preparation method of planet wheel seat |
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Application publication date: 20120627 |