CN102200184B - Multi-layer composite modified nylon gear/wheel and manufacture method thereof - Google Patents
Multi-layer composite modified nylon gear/wheel and manufacture method thereof Download PDFInfo
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- CN102200184B CN102200184B CN201010128982.4A CN201010128982A CN102200184B CN 102200184 B CN102200184 B CN 102200184B CN 201010128982 A CN201010128982 A CN 201010128982A CN 102200184 B CN102200184 B CN 102200184B
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Abstract
The invention discloses a multi-layer composite modified nylon gear/wheel and a manufacture method thereof, which belong to the field of transmission. The multi-layer composite modified nylon gear/wheel comprises a bearing layer, a main layer is arranged outside the bearing layer, and a wear-resistant layer is arranged outside the main layer. In the invention, the multi-layer composite modified nylon gear/wheel sufficiently utilizes the physical properties of various modified nylons, contains three modified nylons having different physical properties and comprises three layers which are respectively: 1, an outermost layer, namely, the wear-resistant layer which is made of crystal whisker enhanced nylons; 2, a middle layer, namely the main layer which is made of glass fiber enhanced nylons; and 3, an innermost layer, namely the bearing layer which is made of heat resistant and thermostable enhanced nylons. The three layers are respectively cast from the inner side to the outer side, and the gear/wheel which is needed to be molded is finally obtained through machining. The obtained gear/wheel can bear high load and high rotating speed and does not require heat processing.
Description
Technical field
The invention belongs to Hoisting Machinery field, be specifically related to a kind of nylon gear/wheel that can carry high load and high rotating speed requirement, also relate to the preparation method of this nylon gear/wheel.
Background technique
Wheel is one of parts important in Hoisting Machinery industry.In traditional industry, adopt the metallic material such as steel and cast iron as the raw material of processing wheel, but the deadweight of metal is heavier always, poor insulativity, poor lubricity wears no resistance when high load and high rotating speed, easily skid, the shortcomings such as heat treatment process complexity are also fairly obvious.
Gear is one of parts the most frequently used in machinery industry.In traditional industry, adopt the metallic material such as steel and cast iron as the raw material of machining gears, but the deadweight of metal is heavier always, poor insulativity, poor lubricity, metal gear wears no resistance when high load and high rotating speed, and the shortcomings such as heat treatment process complexity are also fairly obvious.Development along with nonmetallic material, in recent years, more existing industries adopt MC nylon gear alternative metals gear, but because monomer monomer cast nylon gear cannot carry out surperficial cure process as metal gear, as very undesirable in Hoisting Machinery industry using effect in the field of much gear property being had relatively high expectations.
Technological scheme
The technical problem to be solved in the present invention is that existing wheel and gear wear no resistance when high load and high rotating speed, heat treatment process is complicated, provide a kind of when high load and high rotating speed wear resistance better, need not carry out complicated heat treated Multi-layer composite improved nylon gear/wheel and preparation method thereof.
Technological scheme of the present invention realizes in the following manner: a kind of Multi-layer composite improved nylon gear/wheel, comprise bearing layer, and bearing layer is provided with body layer outward, and body layer is provided with wearing layer outward.
Above-mentioned bearing layer comprises the raw material of following weight parts:
Nylon 6:55～65 part, modifier: 20～30 parts, polyethylene: 2～7 parts, ethylene-acrylic acid copolymer: 1～3 part, connect skill ethylene-propylene diene copolymer: 1～3 part, connect skill polyolefin: 1～4 part, teflon: 2～7 parts, ultra-high molecular weight polyethylene: 1～4 part, processing aid I:1～8 part, processing aid II:0.2～1 part, heat stabilizer: 0.1～0.5 part.
Above-mentioned modifier is polyphenylene oxide resin or fluorinated ethylene propylene or PPO＝ polyphenylene oxide or polyimide.
Above-mentioned processing aid I is fatty acid compound or graphite or silicone oil or alcohol or alkaline nano Montmorilionite.
Above-mentioned processing aid II be triethylene glycol two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile or phosphite.
Aforementioned body layer comprises the raw material of following weight parts:
Nylon 6:45～55 part, polyethylene: 2～7 parts, ethylene-acrylic acid copolymer: 1～3 part, connect skill ethylene-propylene diene copolymer: 1～3 part, connect skill polyolefin: 1～4 part, glass fibre: 15～35 parts, teflon: 2～7 parts, ultra-high molecular weight polyethylene: 1～4 part, processing aid I:1～8 part, processing aid II:0.2～1 part, heat stabilizer: 0.1～0.5 part.
Above-mentioned wearing layer comprises the raw material of following weight parts:
Nylon 6:45～55 part, polyethylene: 2～7 parts, ethylene-acrylic acid copolymer: 1～3 part, connect skill ethylene-propylene diene copolymer: 1～3 part, connect skill polyolefin: 1～4 part, alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker: 15～35 parts, teflon: 2～7 parts, ultra-high molecular weight polyethylene: 1～4 part, processing aid I:1～8 part, processing aid II:0.2～1 part, heat stabilizer: 0.1～0.5 part.
The preparation method of above-mentioned composite modified nylon gear/wheel, prepares according to following step:
(1) material preparation
A, by nylon 6, modifier, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene and heat stabilizer in proportion stirrer for mixing 5～7 minutes, afterwards the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add modifier, in temperature, be that 230～250 ℃, screw speed are to extrude bearing layer material requested under the condition of 250～400 revs/min;
B, by nylon 6, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer mix 5～7 minutes in proportion in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add glass fibre, in temperature, be that 230～250 ℃, screw speed are to extrude body layer material requested under the condition of 250～400 revs/min;
C, by nylon, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer proportionally carry out evenly mixing 5～7 minutes in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker, in temperature, be that 230～250 ℃, screw speed are to extrude wearing layer material requested under the condition of 250～400 revs/min.
(2) brushing releasing agent on the working surface of prepared bearing layer material in step (1) A, by mould and die preheating to 170～190 ℃;
(3) material in step (2) is added in smelting furnace, continue 7～10 seconds under 130～160 ℃, the pressure of 0.11MPa after, add curing agent, after mixing, pour into mould, after the standing demoulding, obtain the blank of bearing layer, blank is put into 100 ℃ of above water and soak 50～70 minutes, take out and be cooled to normal temperature;
(4) at the body layer working surface brushing releasing agent of mould, by obtaining blank in step (3), put into mould, afterwards grinding tool and blank are preheated to 170～190 ℃;
(5) the body layer material obtaining in step (1) B is added in smelting furnace, at 130～160 ℃, under 0.11Mpa pressure, continue to add curing agent after 7～10 seconds, after mixing, pour in the mould of step (4), after the standing demoulding, obtain the compound blank of bearing layer and body layer;
(6) the compound blank obtaining in step (5) is put into 100 ℃ of above water, soaked after 50～70 minutes, take out and be cooled to normal temperature;
(7) at the wearing layer materials processing face brushing releasing agent of mould, and the compound blank that step (6) was processed puts into mould, afterwards mould and compound blank is preheated to 170～190 ℃;
(8) the wearing layer material obtaining in step (1) C is added in smelting furnace, at 130～160 ℃, under 0.11Mpa pressure, continue to add curing agent evenly to mix after 7～10 seconds, after the standing demoulding, obtain the compound blank of bearing layer, body layer and wearing layer;
(9) compound blank step (8) being obtained is put into 100 ℃ of above water and the mixture of alcohol, soaks after 120-200 minute, takes out and slowly cools to normal temperature;
(10) carry out machining, make required nylon gear/wheel.
In the present invention, Multi-layer composite improved nylon gear or wheel make full use of the physical property of multiple modification of nylon, comprise three kinds of modification of nylon that have different physical propertys, are divided into three layers.Be respectively 1, outermost surface: i.e. wearing layer, adopt whisher reinforced nylon, this kind of material has wear-resisting wiping, low noise, low vibration, tensile strength, Young's modulus and impact strength are high, selflubricating is high temperature resistant, the feature little to rail abrasion; 2, mesosphere: i.e. body layer, adopt glass fibre reinforced nylon, it is high that this kind of material has rigidity, corrosion resistant feature; 3, innermost layer: i.e. bearing layer, adopt heat-resisting, thermally-stabilised enhancing nylon, it is heat-resisting, corrosion-resistant that this kind of material has, thermostability by force, not yielding, good damping effect, the feature of low noise.By order from inside to outside, cast respectively, finally by machining, make required forming gear or wheel for three layers.Resulting gear or wheel can carry high load and high rotating speed, and do not need heat treatment.In addition, the present invention also has the following advantages:
1. the bearing layer of innermost layer of the present invention, overcome MC nylon because of self-characteristic be the rising of Yin Wendu or expansion or the contraction that reduction causes, the harmful effect that bearing and integrated model are produced: as loosening or move about aloft in bearing.
2, can cast on a large scale, be easy to carry out machining, reduce the wearing and tearing to process equipment, greatly save processing cost.
3, cost of material is lower, and only the comparable metal gear of cost of material is saved more than 50%.
4, weight reduces greatly, thereby alleviates the deadweight of equipment, saves cost of transportation.
5, compare metal gear, without heat-treating, low-carbon environment-friendly.
6, vibrate little, low noise.
7, there is good self lubricity.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of nylon gear of the present invention;
Fig. 2 is the schematic perspective view of nylon wheel of the present invention;
Fig. 3 is the cross-sectional schematic of nylon wheel of the present invention.
Embodiment
As shown in Figure 1, Multi-layer composite improved nylon gear of the present invention, comprises bearing layer 1, the outer body layer 2 that is provided with of bearing layer 1, the outer wearing layer 3 that is provided with of body layer 2.
Above-mentioned bearing layer comprises the raw material of following weight parts:
Nylon 6:55 part, modifier polyphenylene oxide resin: 30 parts, polyethylene: 2 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 1 part, teflon: 2 parts, ultra-high molecular weight polyethylene: 1 part, fatty acid (processing aid I): 1 part, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile (processing aid II): and 0.2 part, phenols heat stabilizer: 0.1 part.
Aforementioned body layer comprises the raw material of following weight parts:
Nylon 6:45 part, glass fibre: 35 parts, polyethylene: 2 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 1 part, teflon: 2 parts, ultra-high molecular weight polyethylene: 1 part, fatty acid (processing aid I): 1 part, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile (processing aid II): and 0.2 part, phenols heat stabilizer: 0.1 part.
Above-mentioned wearing layer comprises the raw material of following weight parts:
Nylon 6:45 part, alkali magnesium sulfate crystal whisker: 35 parts, polyethylene: 2 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 1 part, teflon: 2 parts, ultra-high molecular weight polyethylene: 1 part, fatty acid (processing aid I): 1 part, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile (processing aid II): and 0.2 part, phenols heat stabilizer: 0.1 part.
Described composite modified nylon gear preparation method is prepared according to following step:
(1) material preparation
A, by nylon 6, modifier, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene and heat stabilizer in proportion stirrer for mixing 5～7 minutes, afterwards the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add modifier, in temperature, be that 230～250 ℃, screw speed are to extrude bearing layer material requested under the condition of 250～400 revs/min;
B, by nylon 6, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer mix 5～7 minutes in proportion in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add glass fibre, in temperature, be that 230～250 ℃, screw speed are to extrude body layer material requested under the condition of 250～400 revs/min;
C, by nylon, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer proportionally carry out evenly mixing 5～7 minutes in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add alkali magnesium sulfate crystal whisker, in temperature, be that 230～250 ℃, screw speed are to extrude wearing layer material requested under the condition of 250～400 revs/min.
(2) brushing releasing agent on the bearing layer working surface of mould, by mould and die preheating to 170～190 ℃;
(3) material obtaining in step (1) A is added in smelting furnace, continue 7～10 seconds under 130～160 ℃, the pressure of 0.11MPa after, add curing agent, after mixing, pour into mould, after the standing demoulding, obtain the blank of bearing layer, blank is put into 100 ℃ of above water and soak 50～70 minutes, take out and be cooled to normal temperature;
(4) at the body layer working surface brushing releasing agent of mould, by obtaining blank in step (3), put into mould, afterwards grinding tool and blank are preheated to 170～190 ℃;
(5) the body layer material obtaining in step (1) B is added in smelting furnace, at 130～160 ℃, under 0.11Mpa pressure, continue to add curing agent after 7～10 seconds, after mixing, pour in the mould of step (4), after the standing demoulding, obtain the compound blank of bearing layer and body layer;
(6) the compound blank obtaining in step (5) is put into 100 ℃ of above water, soaked after 50～70 minutes, take out and be cooled to normal temperature;
(7) at the wearing layer materials processing face brushing releasing agent of mould, and the compound blank that step (6) was processed puts into mould, afterwards mould and compound blank is preheated to 170～190 ℃;
(8) the wearing layer material obtaining in step (1) C is added in smelting furnace, at 130～160 ℃, under 0.11Mpa pressure, continue to add curing agent evenly to mix after 7～10 seconds, after the standing demoulding, obtain the compound blank of bearing layer, body layer and wearing layer;
(9) compound blank step (8) being obtained is put into 100 ℃ of above water and the mixture of alcohol, soaks after 120-200 minute, takes out and slowly cools to normal temperature;
(10) carry out machining, make required nylon gear.
In resulting gear, the thickness of wearing layer 3 is 2.5～3.5 times of gear tooth depth.
When gear compound graduation circular diameter is greater than 350mm, bearing layer 1 thickness is 0.15～0.3 times of gear compound graduation circular diameter, such as, when standard pitch diameter is 400mm, the thickness of bearing layer is between 60～120mm.
When gear compound graduation circular diameter is less than or equal to 350mm, bearing layer 1 thickness is 5～10mm, as 5,6,7,8,9 or 10mm.
In preparation method's step (10) of the present embodiment, carry out different machining, can be worth required nylon wheel (as shown in Figures 2 and 3) or other nylon wheel.For resulting nylon wheel: the thickness of wearing layer 3 is 2.5～3.5 times of the high d of wheel rim, such as 2,3 or 3.5 times.When wheel diameter D is greater than 350mm, bearing layer 1 thickness is 0.15～0.3 times of wheel diameter D, such as wheel diameter D is when being 600mm, and the thickness of bearing layer is between 90～180mm.When wheel diameter D is less than or equal to 350mm, bearing layer 1 thickness is 5～10mm, such as 5,6,7,8,9 or 10mm.
Weight portion described in the present embodiment can be g, kg, ton etc.
Described phenols heat stabilizer can be: 2,6-tert-butyl-4-methyl-Phenol (antioxidant-264) or four (4-hydroxyl-3,5-di-tert-butyl-phenyl propionic acid) pentaerythritol ester (antioxidant-1010) or 3,5-di-t-butyl-4-hydroxy phenylpropionic acid octadecyl ester (antioxidant-1076).
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:56 part, modifier fluorinated ethylene propylene: 29 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 2 parts, graphite (processing aid I): 2 parts, phosphite: 0.3 part, phenols heat stabilizer: 0.2 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:46 part, glass fibre: 33 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 2 parts, graphite (processing aid I): 2 parts, phosphite: 0.3 part, phenols heat stabilizer: 0.2 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:46 part, potassium titanate crystal whisker: 33 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 2 parts, graphite (processing aid I): 2 parts, phosphite (processing aid II): 0.3 part, phenols heat stabilizer: 0.2 part.
Other are with embodiment 1.
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:57 part, modifier PPO＝ polyphenylene oxide: 28 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 3 parts, silicone oil (processing aid I): 3 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.4 part, phenols heat stabilizer: 0.3 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:47 part, glass fibre: 31 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 3 parts, silicone oil (processing aid I): 3 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.4 part, phenols heat stabilizer: 0.3 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:47 part, alkali magnesium sulfate is brilliant: 31 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 3 parts, silicone oil (processing aid I): 3 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.4 part, phenols heat stabilizer: 0.3 part.
Other are with embodiment 1.
Embodiment 4
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:58 part, modifier polyimide: 27 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, alcohol (processing aid I): 4 parts, phosphite: 0.5 part, phenols heat stabilizer: 0.4 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:48 part, glass fibre: 29 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, alcohol (processing aid I): 4 parts, phosphite: 0.5 part, phenols heat stabilizer: 0.4 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:48 part, potassium titanate crystal whisker: 29 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, alcohol (processing aid I): 4 parts, phosphite: 0.5 part, phenols heat stabilizer: 0.4 part.
Other are with embodiment 1.
Embodiment 5
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:59 part, modifier polyimide: 26 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer: 0.5 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:49 part, glass fibre: 27 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer: 0.5 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:49 part, alkali magnesium sulfate crystal whisker: 27 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer: 0.5 part.
Other are with embodiment 1.
Embodiment 6
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:60 part, modifier polyphenylene oxide resin: 25 parts, polyethylene: 7 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 2 parts, teflon: 7 parts, ultra-high molecular weight polyethylene: 2 parts, fatty acid (processing aid I): 6 parts, phosphite: 0.7 part, phenols heat stabilizer: 0.4 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:50 part, glass fibre: 25 parts, polyethylene: 7 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 2 parts, teflon: 7 parts, ultra-high molecular weight polyethylene: 2 parts, fatty acid (processing aid I): 6 parts, phosphite: 0.7 part, phenols heat stabilizer: 0.4 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:50 part, potassium titanate crystal whisker: 25 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer: 0.5 part.
Other are with embodiment 1.
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:61 part, modifier fluorinated ethylene propylene: 24 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 1 part, teflon: 6 parts, ultra-high molecular weight polyethylene: 1 part, fatty acid (processing aid I): 7 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.8 part, phenols heat stabilizer: 0.3 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:51 part, glass fibre: 23 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 1 part, teflon: 6 parts, ultra-high molecular weight polyethylene: 1 part, fatty acid (processing aid I): 7 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.8 part, phenols heat stabilizer: 0.3 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:51 part, alkali magnesium sulfate crystal whisker: 23 parts, polyethylene: 6 parts, ethylene-acrylic acid copolymer: 1 part, connect skill ethylene-propylene diene copolymer: 1 part, connect skill polyolefin: 1 part, teflon: 6 parts, ultra-high molecular weight polyethylene: 1 part, fatty acid (processing aid I): 7 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.8 part, phenols heat stabilizer: 0.3 part.
Other are with embodiment 1.
Embodiment 8
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:62 part, modifier polyphenylene oxide resin: 23 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, graphite (processing aid I): 8 parts, phosphite: 0.9 part, phenols heat stabilizer: 0.2 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:52 part, glass fibre: 21 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, graphite (processing aid I): 8 parts, phosphite: 0.9 part, phenols heat stabilizer: 0.2 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:52 part, potassium titanate crystal whisker: 21 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, graphite (processing aid I): 8 parts, phosphite: 0.9 part, phenols heat stabilizer: 0.2 part.
Other are with embodiment 1.
Embodiment 9
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:63 part, modifier polyimide: 22 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 2 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 2 parts, silicone oil (processing aid I): 6 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.1 part, phenols heat stabilizer: 0.1 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:53 part, glass fibre: 19 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 2 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 2 parts, silicone oil (processing aid I): 6 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.1 part, phenols heat stabilizer: 0.1 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:53 part, alkali magnesium sulfate crystal whisker: 19 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 2 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 2 parts, silicone oil (processing aid I): 6 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.1 part, phenols heat stabilizer: 0.1 part.
One other with embodiment 1.
Embodiment 10
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:64 part, modifier polyimide: 21 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 3 parts, alcohol (processing aid I): 4 parts, phosphite: 0.5 part, phenols heat stabilizer: 0.5 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:54 part, glass fibre: 17 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 3 parts, alcohol (processing aid I): 4 parts, phosphite: 0.5 part, phenols heat stabilizer: 0.5 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:54 part, potassium titanate crystal whisker: 17 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 3 parts, alcohol (processing aid I): 4 parts, phosphite: 0.5 part, phenols heat stabilizer: 0.5 part.
Other are with embodiment 1.
Embodiment 11
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:65 part, modifier polyphenylene oxide resin: 20 parts, polyethylene: 2 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 1 part, teflon: 2 parts, ultra-high molecular weight polyethylene: 1 part, alkaline nano Montmorilionite (processing aid I): 1 part, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.2 part, phenols heat stabilizer: 0.3 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:55 part, glass fibre: 15 parts, polyethylene: 2 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 1 part, teflon: 2 parts, ultra-high molecular weight polyethylene: 1 part, alkaline nano Montmorilionite (processing aid I): 1 part, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.2 part, phenols heat stabilizer: 0.3 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:55 part, alkali magnesium sulfate crystal whisker: 15 parts, polyethylene: 2 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 1 part, teflon: 2 parts, ultra-high molecular weight polyethylene: 1 part, alkaline nano Montmorilionite (processing aid I): 1 part, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.2 part, phenols heat stabilizer: 0.3 part.
Other are with embodiment 1.
Embodiment 12
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:56 part, modifier polyphenylene oxide resin: 29 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 2 parts, silicone oil (processing aid I): 2 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.3 part, phenols heat stabilizer: 0.2 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:48 part, glass fibre: 35 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 2 parts, silicone oil (processing aid I): 2 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.3 part, phenols heat stabilizer: 0.2 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:46 part, alkali magnesium sulfate crystal whisker: 32 parts, polyethylene: 3 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 3 parts, ultra-high molecular weight polyethylene: 2 parts, silicone oil (processing aid I): 2 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.3 part, phenols heat stabilizer: 0.2 part.
Other are with embodiment 1.
Embodiment 13
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:59 part, modifier PPO＝ polyphenylene oxide: 26 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 3 parts, alcohol (processing aid I): 3 parts, phosphite: 0.4 part, phenols heat stabilizer: 0.3 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:50 part, glass fibre: 29 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 3 parts, alcohol (processing aid I): 3 parts, phosphite: 0.4 part, phenols heat stabilizer: 0.3 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:50 part, potassium titanate crystal whisker: 29 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 3 parts, connect skill polyolefin: 3 parts, teflon: 4 parts, ultra-high molecular weight polyethylene: 3 parts, alcohol (processing aid I): 3 parts, phosphite: 0.4 part, phenols heat stabilizer: 0.3 part.
Other are with embodiment 1.
Embodiment 14
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:58 part, modifier PPO＝ polyphenylene oxide: 27 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, graphite (processing aid I): 4 parts, phosphite: 0.3 part, phenols heat stabilizer: 0.4 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:48 part, glass fibre: 28 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, graphite (processing aid I): 4 parts, phosphite: 0.3 part, phenols heat stabilizer: 0.4 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:48 part, alkali magnesium sulfate crystal whisker: 29 parts of polyethylene: 5 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 4 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 4 parts, graphite (processing aid I): 4 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: 0.3 part, phenols heat stabilizer: 0.4 part.
Other are with embodiment 1.
Embodiment 15
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:62 part, modifier fluorinated ethylene propylene: 22 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer: 0.5 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:51 part, glass fibre: 27 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer (: 0.5 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:51 part, potassium titanate crystal whisker: 27 parts, polyethylene: 4 parts, ethylene-acrylic acid copolymer: 2 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 3 parts, teflon: 6 parts, ultra-high molecular weight polyethylene: 3 parts, alkaline nano Montmorilionite (processing aid I): 5 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.6 part, phenols heat stabilizer: 0.5 part.
Other are with embodiment 1.
Embodiment 16
The layer of bearing described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:60 part, modifier PPO＝ polyphenylene oxide: 24 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 2 parts, graphite (processing aid I): 6 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.7 part, phenols heat stabilizer: 0.4 part.
Body layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:50 part, glass fibre: 26 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 2 parts, graphite (processing aid I): 6 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.7 part, phenols heat stabilizer: 0.4 part.
Wearing layer described in the present embodiment comprises the raw material of following weight parts:
Nylon 6:50 part, alkali magnesium sulfate crystal whisker: 26 parts, polyethylene: 5 parts, ethylene-acrylic acid copolymer: 3 parts, connect skill ethylene-propylene diene copolymer: 2 parts, connect skill polyolefin: 2 parts, teflon: 5 parts, ultra-high molecular weight polyethylene: 2 parts, graphite (processing aid I): 6 parts, triethylene glycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile: and 0.7 part, phenols heat stabilizer: 0.4 part.
Other are with embodiment 1.
Embodiment 17
Multi-layer composite improved nylon gear/wheel, comprises bearing layer 1, the outer body layer 2 that is provided with of bearing layer 1, the outer wearing layer 3 that is provided with of body layer 2.
Described bearing layer 1 comprises the raw material of following weight parts:
Nylon 6:55～65 part, modifier: 20～30 parts, polyethylene: 2～7 parts, ethylene-acrylic acid copolymer: 1～3 part, connect skill ethylene-propylene diene copolymer: 1～3 part, connect skill polyolefin: 1～4 part, teflon: 2～7 parts, ultra-high molecular weight polyethylene: 1～4 part, processing aid I:1～8 part, processing aid II:0.2～1 part, heat stabilizer: 0.1～0.5 part.
Described modifier is polyphenylene oxide resin or fluorinated ethylene propylene or PPO＝ polyphenylene oxide or polyimide.
The described processing aid I that states is fatty acid compound or graphite or silicone oil or alcohol or alkaline nano Montmorilionite.
Described processing aid II be triethylene glycol two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile or phosphite.
Described body layer 2 comprises the raw material of following weight parts:
Nylon 6:45～55 part, polyethylene: 2～7 parts, ethylene-acrylic acid copolymer: 1～3 part, connect skill ethylene-propylene diene copolymer: 1～3 part, connect skill polyolefin: 1～4 part, glass fibre: 15～35 parts, teflon: 2～7 parts, ultra-high molecular weight polyethylene: 1～4 part, processing aid I:1～8 part, processing aid II:0.2～1 part, heat stabilizer: 0.1～0.5 part.
Described wearing layer 3 comprises the raw material of following weight parts:
Nylon 6:45～55 part, polyethylene: 2～7 parts, ethylene-acrylic acid copolymer: 1～3 part, connect skill ethylene-propylene diene copolymer: 1～3 part, connect skill polyolefin: 1～4 part, alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker: 15～35 parts, teflon: 2～7 parts, ultra-high molecular weight polyethylene: 1～4 part, processing aid I:1～8 part, processing aid II:0.2～1 part, heat stabilizer: 0.1～0.5 part.
Described whisker is alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker.
The present invention is prepared according to following step:
(1) material preparation
A, by nylon 6, modifier, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene and heat stabilizer in proportion stirrer for mixing 5～7 minutes, afterwards the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add modifier, in temperature, be that 230～250 ℃, screw speed are to extrude bearing layer material requested under the condition of 250～400 revs/min;
B, by nylon 6, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer mix 5～7 minutes in proportion in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add glass fibre, in temperature, be that 230～250 ℃, screw speed are to extrude body layer material requested under the condition of 250～400 revs/min;
C, by nylon, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer proportionally carry out evenly mixing 5～7 minutes in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker, in temperature, be that 230～250 ℃, screw speed are to extrude wearing layer material requested under the condition of 250～400 revs/min.
(2) brushing releasing agent on the bearing layer working surface of mould, by mould and die preheating to 170～190 ℃;
(3) material obtaining in step (1) A is added in smelting furnace, continue 7～10 seconds under 130～160 ℃, the pressure of 0.11MPa after, add curing agent, after mixing, pour into mould, after the standing demoulding, obtain the blank of bearing layer, blank is put into 100 ℃ of above water and soak 50～70 minutes, take out and be cooled to normal temperature;
(4) at the body layer working surface brushing releasing agent of mould, by obtaining blank in step (3), put into mould, afterwards grinding tool and blank are preheated to 170～190 ℃;
(5) the body layer material obtaining in step (1) B is added in smelting furnace, at 130～160 ℃, under 0.11Mpa pressure, continue to add curing agent after 7～10 seconds, after mixing, pour in the mould of step (4), after the standing demoulding, obtain the compound blank of bearing layer and body layer;
(6) the compound blank obtaining in step (5) is put into 100 ℃ of above water, soaked after 50～70 minutes, take out and be cooled to normal temperature;
(7) at the wearing layer materials processing face brushing releasing agent of mould, and the compound blank that step (6) was processed puts into mould, afterwards mould and compound blank is preheated to 170～190 ℃;
(8) the wearing layer material obtaining in step (1) C is added in smelting furnace, at 130～160 ℃, under 0.11Mpa pressure, continue to add curing agent evenly to mix after 7～10 seconds, after the standing demoulding, obtain the compound blank of bearing layer, body layer and wearing layer;
(9) compound blank step (8) being obtained is put into 100 ℃ of above water and the mixture of alcohol, soaks after 120-200 minute, takes out and slowly cools to normal temperature;
(10) carry out machining, make required nylon gear/wheel.
Other are with embodiment 1.
Claims (5)
1. a Multi-layer composite modified nylon wheel, is characterized in that comprising bearing layer (1), the outer body layer (2) that is provided with of bearing layer (1), the outer wearing layer (3) that is provided with of body layer (2); Described bearing layer (1) comprises the raw material of following weight parts:
Nylon 6:55 ~ 65 part, modifier: 20 ~ 30 parts, polyethylene: 2 ~ 7 parts, ethylene-acrylic acid copolymer: 1 ~ 3 part, connect skill ethylene-propylene diene copolymer: 1 ~ 3 part, connect skill polyolefin: 1 ~ 4 part, teflon: 2 ~ 7 parts, ultra-high molecular weight polyethylene: 1 ~ 4 part, processing aid I:1 ~ 8 part, processing aid II:0.2 ~ 1 part, heat stabilizer: 0.1 ~ 0.5 part;
Described body layer (2) comprises the raw material of following weight parts: nylon 6:45 ~ 55 part, polyethylene: 2 ~ 7 parts, ethylene-acrylic acid copolymer: 1 ~ 3 part, connect skill ethylene-propylene diene copolymer: 1 ~ 3 part, connect skill polyolefin: 1 ~ 4 part, glass fibre: 15 ~ 35 parts, teflon: 2 ~ 7 parts, ultra-high molecular weight polyethylene: 1 ~ 4 part, processing aid I:1 ~ 8 part, processing aid II:0.2 ~ 1 part, heat stabilizer: 0.1 ~ 0.5 part;
Described wearing layer (3) comprises the raw material of following weight parts: nylon 6:45 ~ 55 part, polyethylene: 2 ~ 7 parts, ethylene-acrylic acid copolymer: 1 ~ 3 part, connect skill ethylene-propylene diene copolymer: 1 ~ 3 part, connect skill polyolefin: 1 ~ 4 part, alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker: 15 ~ 35 parts, teflon: 2 ~ 7 parts, ultra-high molecular weight polyethylene: 1 ~ 4 part, processing aid I:1 ~ 8 part, processing aid II:0.2 ~ 1 part, heat stabilizer: 0.1 ~ 0.5 part.
2. composite modified nylon wheel according to claim 1, is characterized in that described modifier is polyphenylene oxide resin or fluorinated ethylene propylene or PPO＝ polyphenylene oxide or polyimide.
3. composite modified nylon wheel according to claim 1, is characterized in that described processing aid I is fatty acid compound or graphite or silicone oil or alcohol or alkaline nano Montmorilionite.
4. composite modified nylon wheel according to claim 1, it is characterized in that described processing aid II be triethylene glycol two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) acrylonitrile or phosphite.
5. the preparation method of the composite modified nylon wheel as described in one of claim 1 ~ 4, it is characterized in that preparing according to following step:
(1) material preparation
A, by nylon 6, modifier, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene and heat stabilizer in proportion stirrer for mixing 5 ~ 7 minutes, afterwards the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add modifier, in temperature, be that 230 ~ 250 ℃, screw speed are to extrude bearing layer material requested under the condition of 250 ~ 400 revs/min;
B, by nylon 6, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer mix 5 ~ 7 minutes in proportion in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add glass fibre, in temperature, be that 230 ~ 250 ℃, screw speed are to extrude body layer material requested under the condition of 250 ~ 400 revs/min;
C, by nylon, polyethylene, ethylene-acrylic acid copolymer, connect skill ethylene-propylene diene copolymer, connect skill polyolefin, teflon, ultra-high molecular weight polyethylene, processing aid I, processing aid II and heat stabilizer proportionally carry out evenly mixing 5 ~ 7 minutes in stirrer, the material being stirred is dropped into the material feeding mouth of double screw extruder, and in plasticizing early stage, add alkali magnesium sulfate crystal whisker or potassium titanate crystal whisker, in temperature, be that 230 ~ 250 ℃, screw speed are to extrude wearing layer material requested under the condition of 250 ~ 400 revs/min;
(2) brushing releasing agent on the bearing layer working surface of mould, by mould and die preheating to 170 ~ 190 ℃;
(3) material obtaining in step (1) A is added in smelting furnace, continue 7 ~ 10 seconds under 130 ~ 160 ℃, the pressure of 0.11MPa after, add curing agent, after mixing, pour into mould, after the standing demoulding, obtain the blank of bearing layer, blank is put into 100 ℃ of above water and soak 50 ~ 70 minutes, take out and be cooled to normal temperature;
(4) at the body layer working surface brushing releasing agent of mould, by obtaining blank in step (3), put into mould, afterwards grinding tool and blank are preheated to 170 ~ 190 ℃;
(5) the body layer material obtaining in step (1) B is added in smelting furnace, at 130 ~ 160 ℃, under 0.11Mpa pressure, continue to add curing agent after 7 ~ 10 seconds, after mixing, pour in the mould of step (4), after the standing demoulding, obtain the compound blank of bearing layer and body layer;
(6) the compound blank obtaining in step (5) is put into 100 ℃ of above water, soaked after 50 ~ 70 minutes, take out and be cooled to normal temperature;
(7) at the wearing layer materials processing face brushing releasing agent of mould, and the compound blank that step (6) was processed puts into mould, afterwards mould and compound blank is preheated to 170 ~ 190 ℃;
(8) the wearing layer material obtaining in step (1) C is added in smelting furnace, at 130 ~ 160 ℃, under 0.11Mpa pressure, continue to add curing agent evenly to mix after 7 ~ 10 seconds, after the standing demoulding, obtain the compound blank of bearing layer, body layer and wearing layer;
(9) compound blank step (8) being obtained is put into 100 ℃ of above water and the mixture of alcohol, soaks after 120-200 minute, takes out and slowly cools to normal temperature;
(10) carry out machining, make required nylon wheel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010128982.4A CN102200184B (en) | 2010-03-22 | 2010-03-22 | Multi-layer composite modified nylon gear/wheel and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010128982.4A CN102200184B (en) | 2010-03-22 | 2010-03-22 | Multi-layer composite modified nylon gear/wheel and manufacture method thereof |
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| CN102200184A CN102200184A (en) | 2011-09-28 |
| CN102200184B true CN102200184B (en) | 2014-02-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102865350B (en) * | 2012-07-12 | 2015-09-09 | 济南大学 | A kind of gear and manufacture method thereof |
| CN103062362A (en) * | 2013-01-11 | 2013-04-24 | 哈尔滨工程大学 | Quasi-Bragg phonon crystal damping gear |
| CN103665851B (en) * | 2013-12-30 | 2016-09-14 | 冀凯装备制造股份有限公司 | A kind of manufacture method of gear |
| CN105020365A (en) * | 2015-06-05 | 2015-11-04 | 安徽砥钻砂轮有限公司 | Industrial gear |
| CN106349687B (en) * | 2016-08-30 | 2018-07-17 | 长沙五犇新材料科技有限公司 | A kind of light wear-resistant metal/nylon compound noise-reducing gear and preparation method thereof |
| US10584786B2 (en) * | 2017-03-29 | 2020-03-10 | Shimano Inc. | Bicycle sprocket assembly |
| CN110030364A (en) * | 2019-04-19 | 2019-07-19 | 浙江美亚特精密机械有限公司 | A kind of multiple field metal/resin gear and its manufacturing process and purposes |
| CN111040436A (en) * | 2019-12-31 | 2020-04-21 | 苏州旭光聚合物有限公司 | Glass fiber reinforced nylon 6 composite material with ultrahigh fluidity |
| US11300190B1 (en) * | 2020-09-29 | 2022-04-12 | GM Global Technology Operations LLC | Gear assembly with optimized configuration for mesh stiffness |
| CN112815072A (en) * | 2020-12-28 | 2021-05-18 | 株洲时代工程塑料科技有限责任公司 | EPS worm gear and preparation method thereof |
| CN112959577B (en) * | 2021-01-29 | 2023-03-03 | 厦门大学 | Underwater soft pneumatic sound source, preparation method thereof and sound production device with sound source |
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| CN2476678Y (en) * | 2001-02-23 | 2002-02-13 | 江苏松芝科技电器工程尼龙有限公司 | Speed regulating reinforced gear of modified MC nylong engine |
| CN2687428Y (en) * | 2003-06-21 | 2005-03-23 | 重庆市泰伯铸型尼龙有限责任公司 | High strength modified nylon mould compound wheel |
| CN101481499A (en) * | 2008-12-30 | 2009-07-15 | 南京师范大学 | Nylon masterbatch composition for preparing gear by mould method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040209021A1 (en) * | 2003-04-18 | 2004-10-21 | Shih Keith S. | Multi-layer laminate structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476678Y (en) * | 2001-02-23 | 2002-02-13 | 江苏松芝科技电器工程尼龙有限公司 | Speed regulating reinforced gear of modified MC nylong engine |
| CN2687428Y (en) * | 2003-06-21 | 2005-03-23 | 重庆市泰伯铸型尼龙有限责任公司 | High strength modified nylon mould compound wheel |
| CN101481499A (en) * | 2008-12-30 | 2009-07-15 | 南京师范大学 | Nylon masterbatch composition for preparing gear by mould method |
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