CN102653138A - Manufacturing method of carbon fibre hub - Google Patents

Manufacturing method of carbon fibre hub Download PDF

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Publication number
CN102653138A
CN102653138A CN2012101362744A CN201210136274A CN102653138A CN 102653138 A CN102653138 A CN 102653138A CN 2012101362744 A CN2012101362744 A CN 2012101362744A CN 201210136274 A CN201210136274 A CN 201210136274A CN 102653138 A CN102653138 A CN 102653138A
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China
Prior art keywords
wheel hub
wind pipe
carbon fiber
straight type
layer
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CN2012101362744A
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Chinese (zh)
Inventor
李炜
郭珊珊
张珊
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Donghua University
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Donghua University
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Priority to CN2012101362744A priority Critical patent/CN102653138A/en
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Abstract

The invention discloses a manufacturing method of a carbon fibre hub. The manufacturing method is characterized in that the manufacturing method comprises the following steps of preparing a special mould, wherein the special mould comprises an upper mould as well as a lower model and at least three side moulds; selecting a straight-form nylon air pipe the diameter of which is greater than that of a cavity of the carbon fibre hub to be manufactured, sealing the two ends of the straight-form nylon air pipe through a sealing joint strip, and ensuring a plastic guide pipe to be fixed at one end of the straight-form nylon air pipe, wherein the plastic guide pipe passes through a nylon air pipe port to ensure the straight-form nylon air pipe to be communicated with atmosphere, and the two sealing ends of the straight-form nylon air pipe are connected through same standard nylon sleeves; and paving layers and assembling dies, thus finishing the manufacture of the carbon fibre hub through a vacuum infusion method after. According to the invention, the pressure required by the nylon air pipe can not be considered, and due to the layer paving design, the problems that resin rather than fiber only exists at the hub part caused by shortage of the shape of the nylon air pipe, defects caused by fast flowing of the resin due to a gap between the fiber cloth and the mould, and the like, can be obviously improved..

Description

A kind of preparation method of carbon fiber wheel hub
Technical field
The present invention relates to a kind of preparation method of carbon fiber wheel hub.
Background technology
At present, the agent structure of standard bicycle comprises that it is material that vehicle frame, front and rear fork and wheel rim etc. mostly adopt irony or stainless steel.In bicycle race,, replace iron or stainless steel material with aluminum alloy materials gradually for alleviating the bicycle overall weight.Recently; Occurred again with the trend of carbon fibre material as the bicycle main body; The scope of only using for this material mostly with vehicle frame or front and rear fork; But in being particular about the bicycle racing market compete for speed, full car weight amount is a significant effects factor very as far as speed, so full car should utilize the slim and graceful carbon fiber of quality to make vehicle body as much as possible.Even thereby wheel rim, can also be to be raw material with the carbon fiber.Carbon fiber is the excellent new material of a kind of mechanical property, and its proportion is less than 1/4 of steel, carbon fiber resin composite material tensile strength generally all more than 3500Mpa, be steel 7-9 doubly, tensile modulus of elasticity is that 230-430Gpa also is higher than steel.
Because the wheel hub shape is special, usually like Fig. 1 and shown in Figure 2, and high to the mould requirement, it is extremely important that Mould design seems.In order to reduce the weight of wheel hub; Need wheel rim be made hollow shape; Carry out inside typing so added nylon wind pipe or rubber, how to control the air-tightness of nylon wind pipe or rubber and in manufacturing process the change in shape of control nylon wind pipe or rubber all be to need the problem that solves.
Summary of the invention
The method that the purpose of this invention is to provide the making carbon fiber wheel hub of a kind of air-tightness that can effectively control nylon wind pipe or rubber and change in shape.
In order to achieve the above object, technical scheme of the present invention has provided a kind of preparation method of carbon fiber wheel hub, it is characterized in that, step is:
Step 1, preparation particular manufacturing craft; This mould comprises patrix and counterdie; In the bottom of patrix and the top of counterdie form respectively one with wait to make the convexity that hollow part, carbon fiber wheel hub middle part adapts, between patrix and counterdie, be provided with at least three side forms, all side forms surround the back and form full circle; On the inwall of every side form, be provided with one section with wait to make the circular arc raised section that carbon fiber wheel hub outer rim U-lag adapts; Circular arc raised section on all side forms is surrounded the back and is formed full circle, is respectively equipped with into the resin mouth on any two in all side forms and goes out the resin mouth, on the circular arc raised section of the side form that is provided with out the resin mouth, is provided with the nylon wind pipe mouth;
Step 2, select the straight type nylon wind pipe of diameter greater than the cavity diameter of waiting to make the carbon fiber wheel hub; The two ends of this straight type nylon wind pipe are sealed through sealing joint strip; Plastic catheter is fixed therein on the end; Plastic catheter is passed the nylon wind pipe mouth makes straight type nylon wind pipe be communicated with atmospheric pressure, and two sealed ends of straight type nylon wind pipe connect through the nylon sleeve of same specification;
Step 3, spread layer: the shop layer of whole wheel hub is divided into two parts: i.e. inboard U-shaped part of wheel hub and part beyond the U-shaped, in the shop during layer, earlier along the counterdie ground floor carbon cloth that tiles; And redundance vertically erected, with same method shop second layer carbon cloth, after the end; Above second layer carbon cloth, use the same method and spread the water conservancy diversion layer, subsequently, continue to use the same method and on the water conservancy diversion layer, lay two-layer carbon cloth; After the completion straight type nylon wind pipe is enclosed within on the carbon cloth, the carbon cloth of vertical component is turned down with straight type nylon wind pipe fitted, make carbon cloth integral body present U-shaped; Close behind the patrix, according to wheel hub width cutting carbon cloth, the straight type nylon wind pipe in edge is spread two-layer and is cut an aperture plastic catheter at straight type nylon wind pipe one end place is drawn; Side form subsequently closes; With plastic catheter dies cavity is linked to each other with the external world, the air in the dies cavity is pumped, utilize atmospheric pressure to make straight type nylon wind pipe typing with vavuum pump;
Behind step 4, the side form that closes, the method through priming by vacuum is through advancing perfusion resin in the resin mouth phase mould, and unnecessary resin flows out from going out the resin mouth, treat resin solidification after, accomplish the making of carbon fiber wheel hub.
Preferably, the shirt rim of said patrix and said counterdie is respectively derivative type and reaches derivative type down.
Preferably, the said position that goes out the resin mouth is higher than the said position of advancing the resin mouth.
Preferably, in step 3, said carbon cloth needs before laying along 45 ° of cutting certain widths and length, and width and length are decided based on the wheel hub size that is designed.
The present invention is divided into mould and three side forms up and down with mould; The shirt rim of upper and lower mould is designed to derivative type up and down; Mainly be for matched moulds when making the carbon fiber wheel hub more convenient; And stickiness is stronger between each mould, no matter be for hand pasting forming, hot-forming or priming by vacuum, air-tightness control is better.Side form is divided into three, not only is beneficial to the demoulding but also make things convenient for Mold Making.
The present invention can not consider that to the required pressure size issue of nylon wind pipe inflation layer design can obviously improvement hub portion zone that causes because of nylon wind pipe shape deficiency, shop does not have fiber to have only has the space to cause the very fast problems such as fault that produce of resin flows between resin and cloth and mould.
Description of drawings
Fig. 1 is the front view that needs the carbon fiber wheel hub of making;
Fig. 2 is the side view that needs the carbon fiber wheel hub of making;
Fig. 3 is employed mould sketch map among the present invention.
The specific embodiment
For making the present invention more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
Like Fig. 1 and shown in Figure 2, be the carbon fiber wheel hub 3 that need are made, the middle part of this carbon fiber wheel hub 3 forms hollow part 4, and its outer rim is a U-lag 6.
For making above-mentioned carbon fiber wheel hub 3, the preparation method of the disclosed a kind of carbon fiber wheel hub of present embodiment the steps include:
Step 1, preparation particular manufacturing craft; As shown in Figure 3, this mould comprises patrix 1 and counterdie 2, and the shirt rim of patrix 1 and counterdie 2 is designed to derivative type up and down; Mainly be for matched moulds when making the carbon fiber wheel hub more convenient; And stickiness is stronger between each mould, no matter be for hand pasting forming, hot-forming or priming by vacuum, air-tightness control is better.In the bottom of patrix 1 and the top of counterdie 2 form respectively one with wait to make the convexity 5 that hollow part, carbon fiber wheel hub 3 middle part 4 adapts; Between patrix 1 and counterdie 2, be provided with three side forms; Be first side form 11, second side form 12 and the 3rd side form 13, all side forms surround the back and form full circle, on the inwall of every side form, be provided with one section with wait to make the circular arc raised section 7 that carbon fiber wheel hub 3 outer rim U-lags 6 adapt; Circular arc raised section 7 on all side forms is surrounded the back and is formed full circle; On first side form 11 and second side form 12, be respectively equipped with into resin mouth 8 and go out resin mouth 9, the position that goes out resin mouth 9 is higher than the into position of resin mouth 8, because resin gravity effect meeting flows downward; If resin advances from the lower hole to mean when the eminence hole goes out that resin has permeated each zone of wheel hub basically; While can be with going out the relative bed hedgehopping of resin end in order to increase its gravitational effect, and the infiltration of resin is more abundant like this.On the circular arc raised section 7 of first side form 11, be provided with nylon wind pipe mouth 10.
The manufacturing process of above-mentioned mould is following:
Make earlier upper and lower mould, go out to make the shirt rim with PVC plastic plate hollow in the middle of the wheel hub model, model is divided into two parts are on model up and down, the fixing hemisphere in the optional position, shirt rim is used for locating.Other gets the square PVC plate of a block length, and length equals wheel hub model outer perimeter, bends to circle and is enclosed within on the model, as the shirt rim of side.On model and shirt rim, stamp demoulding wax, at least 4 times.Spray the mould gel coat after having beaten, treat that the mould gel coat solidifies fully after, utilize hand pasting forming, earlier shop 30g/m 2Surperficial felt, stick with paste resin again, in the process of resinizing, must note removing bubble.The surface felt is completed continued shop weak point and is cut felt, repeats to spread short process of cutting felt, reaches the mould required thickness until glass fibre.Profit uses the same method and step is made counterdie.After upper and lower mould is accomplished, remove the side shirt rim, the wheel hub periphery is divided into trisection, make corresponding shirt rim (also available PVC plastic plate) at boundary.After the shirt rim completed, method identical with upper and lower mould and step were made side form, and side form needs to make one by one, and what a is whenever done, and removes one.Mould need be beaten several screw holes after all accomplishing in the relevant position, be used for the connection of mould.
Step 2, select the straight type nylon wind pipe of diameter greater than the cavity diameter of waiting to make carbon fiber wheel hub 3.In the present embodiment, the diameter of straight type nylon wind pipe is elected about 10cm as.The two ends of this straight type nylon wind pipe are sealed through sealing joint strip; Plastic catheter is fixed therein on the end; Plastic catheter is passed nylon wind pipe mouth 10 makes straight type nylon wind pipe be communicated with atmospheric pressure; Two sealed ends of straight type nylon wind pipe connect through the nylon sleeve of same specification, i.e. the about 10cm of the diameter of nylon sleeve.
Step 3, spread layer: the shop layer of whole wheel hub is divided into two parts: i.e. inboard U-shaped part of wheel hub and part beyond the U-shaped, in the shop during layer, earlier along the counterdie 2 ground floor carbon cloths that tile; And redundance vertically erected, with same method shop second layer carbon cloth, after the end; Above second layer carbon cloth, use the same method and spread the water conservancy diversion layer, subsequently, continue to use the same method and on the water conservancy diversion layer, lay two-layer carbon cloth; After the completion straight type nylon wind pipe is enclosed within on the carbon cloth; The carbon cloth of vertical component is turned down and straight type nylon wind pipe applying, made carbon cloth integral body present U-shaped, behind the patrix 1 that closes; According to wheel hub width cutting carbon cloth; Two-layer and cut an aperture plastic catheter at nylon wind pipe one end place is drawn along nylon wind pipe shop, the zone that side form and side form and side form are contacted with upper and lower mould all seals with sealing joint strip, then matched moulds.With plastic catheter dies cavity is linked to each other with the external world, and conduit and mould contact position are sealed with plasticine, the guarantee period air-tightness comprises that nylon divides the mouth of pipe.With vavuum pump the air in the dies cavity is pumped, utilize atmospheric pressure to make straight type nylon wind pipe typing.
Step 4, with epoxy resin and curing agent with 100: 2 mixing match, mould is put into 40 ° of baking ovens, carry out priming by vacuum from advancing resin mouth 8; There is resin to flow out until going out resin mouth 9; Treat that resin becomes gel, stop to bleed that continuation is placed on mould and makes resin solidification in the baking oven.Treat that resin solidifies back (about 2 hours) fully, can carry out the demoulding, accomplish the making of carbon fiber wheel hub.

Claims (4)

1. the preparation method of a carbon fiber wheel hub is characterized in that, step is:
Step 1, preparation particular manufacturing craft; This mould comprises patrix (1) and counterdie (2); In the bottom of patrix (1) and the top of counterdie (2) form respectively one with wait to make the convexity (5) that carbon fiber wheel hub (3) hollow part, middle part (4) adapts; Between patrix (1) and counterdie (2), be provided with at least three side forms; All side forms surround the back and form full circle, on the inwall of every side form, be provided with one section with wait to make the circular arc raised section (7) that carbon fiber wheel hub (3) outer rim U-lag (6) adapts, back formation full circle is surrounded in the circular arc raised section (7) on all side forms; Be respectively equipped with into resin mouth (8) on any two in all side forms and go out resin mouth (9), on the circular arc raised section (7) of the side form that is provided with out resin mouth (9), be provided with nylon wind pipe mouth (10);
Step 2, select the straight type nylon wind pipe of diameter greater than the cavity diameter of waiting to make carbon fiber wheel hub (3); The two ends of this straight type nylon wind pipe are sealed through sealing joint strip; Plastic catheter is fixed therein on the end; Plastic catheter is passed nylon wind pipe mouth (10) makes straight type nylon wind pipe be communicated with atmospheric pressure, and two sealed ends of straight type nylon wind pipe connect through the nylon sleeve of same specification;
Step 3, spread layer: the shop layer of whole wheel hub is divided into two parts: i.e. inboard U-shaped part of wheel hub and part beyond the U-shaped, in the shop during layer, earlier along counterdie (2) the ground floor carbon cloth that tiles; And redundance vertically erected, with same method shop second layer carbon cloth, after the end; Above second layer carbon cloth, use the same method and spread the water conservancy diversion layer, subsequently, continue to use the same method and on the water conservancy diversion layer, lay two-layer carbon cloth; After the completion straight type nylon wind pipe is enclosed within on the carbon cloth, the carbon cloth of vertical component is turned down with straight type nylon wind pipe fitted, make carbon cloth integral body present U-shaped; Close behind the patrix (1), according to wheel hub width cutting carbon cloth, the straight type nylon wind pipe in edge is spread two-layer and is cut an aperture plastic catheter at straight type nylon wind pipe one end place is drawn; Side form subsequently closes; With plastic catheter dies cavity is linked to each other with the external world, the air in the dies cavity is pumped, utilize atmospheric pressure to make straight type nylon wind pipe typing with vavuum pump;
Behind step 4, the matched moulds, the method through priming by vacuum is through advancing perfusion resin in resin mouth (8) the phase mould, and unnecessary resin flows out from going out resin mouth (9), accomplishes the making of carbon fiber wheel hub.
2. the preparation method of a kind of carbon fiber wheel hub as claimed in claim 1 is characterized in that: the shirt rim of said patrix (1) and said counterdie (2) is respectively derivative type and reaches derivative type down.
3. the preparation method of a kind of carbon fiber wheel hub as claimed in claim 1 is characterized in that: the said position that goes out resin mouth (9) is higher than the said position of advancing resin mouth (8).
4. the preparation method of a kind of carbon fiber wheel hub as claimed in claim 1 is characterized in that: in step 3, said carbon cloth needs before laying along 45 ° of cutting certain widths and length, and width and length are decided according to the wheel hub size that is designed.
CN2012101362744A 2012-05-03 2012-05-03 Manufacturing method of carbon fibre hub Pending CN102653138A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568333A (en) * 2013-08-24 2014-02-12 厦门欧势复材科技有限公司 Carbon fiber composite material specially-shaped product forming process
CN103963194A (en) * 2014-05-05 2014-08-06 王明 Forming mould and method of carbon fiber rim
CN104369394A (en) * 2013-08-14 2015-02-25 厦门三德明复材科技有限公司 Method and tool for manufacturing wheel rim made of carbon fiber composite material
CN106994788A (en) * 2016-01-22 2017-08-01 翁庆隆 Method and device of the composite pipe into change
CN108189422A (en) * 2017-12-20 2018-06-22 苏州胜利高睿智能汽车制造有限公司 A kind of automobile carbon fibre hub manufacturing process
CN108819294A (en) * 2018-06-19 2018-11-16 大连理工大学 A kind of stepped ramp type carbon fiber cohesive body mold for forming and its application method

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CN101157258A (en) * 2007-11-28 2008-04-09 李世鹏 Rim mould and rim made of rim mould
CN101372156A (en) * 2007-08-23 2009-02-25 厦门广群复材科技有限公司 Molding technique of bicycle carbon fibre rim
CN201353885Y (en) * 2009-02-05 2009-12-02 兆胜碳纤科技股份有限公司 Carbon fiber wheel rim forming mold
CN101850694A (en) * 2010-06-03 2010-10-06 深圳市喜德盛碳纤科技有限公司 Carbon fiber rim and manufacturing method thereof
CN201632580U (en) * 2010-04-23 2010-11-17 肖立强 Mold for forging aluminium alloy motorcycle wheel hub
CN102114751A (en) * 2009-12-31 2011-07-06 林书伟 Method for manufacturing hub of bicycle and product thereof
US20120062021A1 (en) * 2009-05-30 2012-03-15 Reynolds Cycling Llc Wheel Lip

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1309003A (en) * 2000-02-16 2001-08-22 宋修民 Method for improving die casting technology of aluminium hub
CN1370693A (en) * 2001-02-13 2002-09-25 坎培诺洛有限公司 Bicycle felly manufacturing method and plant and the manufactured felly
CN2681924Y (en) * 2003-12-10 2005-03-02 林胜源 Bicycle wheel rim structure
CN101088745A (en) * 2006-06-13 2007-12-19 明安国际企业股份有限公司 Bicycle wheel rim producing process
CN101372156A (en) * 2007-08-23 2009-02-25 厦门广群复材科技有限公司 Molding technique of bicycle carbon fibre rim
CN101157258A (en) * 2007-11-28 2008-04-09 李世鹏 Rim mould and rim made of rim mould
CN201353885Y (en) * 2009-02-05 2009-12-02 兆胜碳纤科技股份有限公司 Carbon fiber wheel rim forming mold
US20120062021A1 (en) * 2009-05-30 2012-03-15 Reynolds Cycling Llc Wheel Lip
CN102114751A (en) * 2009-12-31 2011-07-06 林书伟 Method for manufacturing hub of bicycle and product thereof
CN201632580U (en) * 2010-04-23 2010-11-17 肖立强 Mold for forging aluminium alloy motorcycle wheel hub
CN101850694A (en) * 2010-06-03 2010-10-06 深圳市喜德盛碳纤科技有限公司 Carbon fiber rim and manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104369394A (en) * 2013-08-14 2015-02-25 厦门三德明复材科技有限公司 Method and tool for manufacturing wheel rim made of carbon fiber composite material
CN103568333A (en) * 2013-08-24 2014-02-12 厦门欧势复材科技有限公司 Carbon fiber composite material specially-shaped product forming process
CN103963194A (en) * 2014-05-05 2014-08-06 王明 Forming mould and method of carbon fiber rim
CN106994788A (en) * 2016-01-22 2017-08-01 翁庆隆 Method and device of the composite pipe into change
CN108189422A (en) * 2017-12-20 2018-06-22 苏州胜利高睿智能汽车制造有限公司 A kind of automobile carbon fibre hub manufacturing process
CN108819294A (en) * 2018-06-19 2018-11-16 大连理工大学 A kind of stepped ramp type carbon fiber cohesive body mold for forming and its application method
CN108819294B (en) * 2018-06-19 2019-08-09 大连理工大学 A kind of stepped ramp type carbon fiber cohesive body mold for forming and its application method

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Application publication date: 20120905