CN102922741B - Manufacturing method of wheel-shaped part - Google Patents
Manufacturing method of wheel-shaped part Download PDFInfo
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- CN102922741B CN102922741B CN201210437547.9A CN201210437547A CN102922741B CN 102922741 B CN102922741 B CN 102922741B CN 201210437547 A CN201210437547 A CN 201210437547A CN 102922741 B CN102922741 B CN 102922741B
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Abstract
The invention discloses a manufacturing method of a wheel-shaped part. The method is characterized in that rubber compound and plastic particles serve as raw materials, the plastic particles are pressed into a plastic wheel disk, the rubber compound is extruded into rubber strips, the rubber strips are sleeved on the periphery of the plastic wheel disk in a head-tail lap joint mode, the plastic wheel disk on which the rubber strips are sleeved is placed in a high-temperature mold, a semi-finished product is formed, at the same time, pressure is exerted, after the semi-finished product is taken out from the mold, constant-temperature shaping is conducted immediately, and finally finish machining is performed. During production, rubber and plastic are not only in physical connection, but also in chemical connection during high-temperature shaping, so that after total shaping, the joint area between the rubber and the plastic is increased and the joint strength between the rubber and the plastic are enhanced, and the service life of the part is prolonged greatly.
Description
Technical field
The present invention relates to colyliform parts, relate in particular to a kind of manufacture method of small-sized colyliform parts.
Background technology
On skibob, horticultural machine and some instruments, usually need to use small wheels, this type of small wheels requires own wt light, so that the original power in use needing is little.The main body of original this type of small wheels mostly is light-weight metal, and frictional property and the power transmission to ensure that it is necessary at light-weight metal surface attachment rubber, but small wheels production cost taking light-weight metal as main body is high and complex manufacturing, little by little, plastics have replaced light-weight metal and have been widely used in this type of small wheels, but having there is again new problem after substituting light-weight metal in plastics, because rubber is different from the polarity of plastics, engages thereby affected between rubber and plastics.Existing technique is to say the first moulding of plastics, then again with rubber jointing-and-forming, after moulding, the composition surface between rubber and plastics can only produce slight engaging force in this way, even if plastics are carried out after the technique of the complexity such as modification, its bonding area still can only reach 10% ~ 20%, bond strength is far smaller than the intensity of the rubber engaging, thereby causes the service life of product extremely short and relatively harsh to the environment (as rotating speed, temperature, time etc.) using.
So, how to overcome above-mentioned deficiency, just become research topic of the present invention.
Summary of the invention
The object of the invention is to provide a kind of manufacture method of colyliform parts, and its object is to solve in prior art that the bonding area of rubber and plastics is little and bond strength is little, the problem that service life is short.
For achieving the above object, the technical solution used in the present invention is: a kind of manufacture method of colyliform parts, and described colyliform parts comprise a plastics wheel disc, the girth of this plastics wheel disc is D
1, it is circumferentially provided with a circle rubber strip plastic wheel rim, manufactures described colyliform parts and is made up of following steps:
The first step: prepare material
By mixing elastomeric compound general on market be rubber, described elastomeric compound is that compounding ingredient is mixed in to the non cross-linked state in bulk, granular and Powdered rubber, and there is the sizing material of mobility, it is the blank of manufacturing rubber, be semi-finished product, in the time using elastomeric compound mixing of rubber, do not add temperature, make its incomplete moulding, the rubber after moulding is substantially similar to the shape of rubber strip after colyliform parts-moulding;
The plastic grain that becomes diameter to be less than 0.1 millimeter plastic particle processing general on market;
Second step: preformed
Rubber strip preformed
Be rubber strip by the rubber mixing by extrusion molding, the length of this rubber strip is D
2, D
1: D
2=1:N, 1<N<1.5, and by rubber strip head and the tail overlap joint, be about to head and the tail two ends and touch together, the tangent plane complementation at described rubber strip two ends can be good at coordinating in the time that head and the tail overlap;
The preformed of plastics wheel disc
Plastic grain is placed in to preforming tool and is pre-formed as plastics powder agglomates by compressing mode, the thickness of plastics powder agglomates is greater than finished product thickness, and pressure is only provided in preformed process, does not heat the F that exerts pressure in compressing process, 80kgf/cm
2<F<120 kgf/cm
2;
The 3rd step: high-temperature molding
Described plastics powder agglomates is placed in high-temperature molding mould, and the rubber strip of head and the tail overlap joint is set on the outer peripheral face of plastics powder agglomates, the F that exerts pressure, 120kgf/cm
2<F<200 kgf/cm
2, simultaneously with temperature T heating, 200 DEG C of <T<240 DEG C, the duration is 600 seconds ~ 800 seconds, forms the semi-finished product of described colyliform parts with this;
The 4th step: normal temperature sizing
Described semi-finished product are taken out in the die cavity of high-temperature molding mould, put it into immediately in normal temperature shaper, so that semi-finished product are carried out to normal temperature sizing;
The 5th step: fine finishining
According to the specific requirement of product, the semi-finished product after normal temperature sizing are carried out to fine finishining, as burr removing, visual examination after being shaped, adhere to optional feature, groove size processing etc.
Related content in technique scheme is explained as follows:
1, in such scheme, described " head and the tail overlap joint " is about to head and the tail two ends and touches together, the tangent plane complementation at described rubber strip two ends can be good at coordinating in the time that head and the tail overlap, if head and the tail two ends are that the mode such as inclined-plane cooperation, zigzag interlock parallel to each other all can make closely overlap joint of head and the tail.
2, in such scheme, " elastomeric compound " described in the first step refers to compounding ingredient is mixed in to the non cross-linked state in bulk, granular and Powdered rubber, and there is the sizing material of mobility, it is the blank of manufacturing rubber, be semi-finished product, in the time using elastomeric compound mixing of rubber, do not add temperature, make its incomplete moulding, the rubber after moulding is substantially similar to the shape of rubber strip after colyliform parts-moulding.
3, in such scheme, described in second step, the thickness of " plastics powder agglomates " is greater than finished product thickness, and pressure is only provided in preformed process, does not heat.
4,, in such scheme, owing to having met the high-temperature molding of plastics, cause product after depanning to be difficult for sizing, therefore need to carry out the step of normal temperature sizing.
5,, in such scheme, " fine finishining " described in the 5th step comprises the semi-finished product burr removing after normal temperature sizing, adheres to optional feature, dimensioned, decoration etc.
6, in such scheme, what in manufacture process, between rubber and plastics, occur is not only connection physically, and connection chemically has also occurred in the time of high-temperature molding, improves the bond strength between rubber and plastics after complete moulding with this.
7,, in such scheme, described " temperature ", " pressure " and between " time ", do not have linear or nonlinear relation, all can independently choose.
Operation principle of the present invention and advantage:
It is rubber that the present invention uses elastomeric compound mixing in manufacture process, it is the plastic grain of minor diameter more by plastic particle processing general on market simultaneously, then be rubber strip by the rubber extruding mixing, plastic grain is suppressed into plastics powder agglomates, again rubber strip is set on the outer peripheral face of plastics powder agglomates, the pressurization of heating, in this process, what between rubber and plastics, occur is not only connection physically, in high-temperature molding process, between rubber and plastics, also there is connection chemically, due to the reaction of high temperature, destroy rubber and plastic component molecular structure separately, rubber curing forming, composition surface moulding between plastically welding moulding and rubber and plastics all occurs at one time, there is overlap joint physically in the molecular structure that has produced rubber and plastics, make bond strength between the two obtain maximum improvement.And only there is the composition surface moulding between rubber and plastics in prior art in manufacture process.The present invention has improved the bond strength between rubber and plastics after complete moulding with this, bonding area of the present invention has reached more than 80%, greatly increased the bonding area between colyliform parts rubber and plastics, improved bond strength, and large leap ahead its service life.
Brief description of the drawings
Accompanying drawing 1 is embodiment of the present invention colyliform block diagram;
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to cutaway view.
In above accompanying drawing: 1, plastics wheel disc; 2, rubber strip.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of manufacture method of colyliform parts
Shown in accompanying drawing 1 and accompanying drawing 2, described colyliform parts comprise a plastics wheel disc 1, and the girth of this plastics wheel disc 1 is D
1, plastics wheel disc 1 is circumferentially provided with a circle rubber strip 2 along it, manufactures described colyliform parts and is made up of following steps:
The first step: prepare material
By mixing elastomeric compound general on market be rubber, it is the plastic grain of 0.07 millimeter that plastic particle processing general on market is become to diameter.
Described elastomeric compound refers to compounding ingredient is mixed in to the non cross-linked state in bulk, granular and Powdered rubber, and there is the sizing material of mobility, it is the blank of manufacturing rubber, be semi-finished product, in the time using elastomeric compound mixing of rubber, do not add temperature, make its incomplete moulding, the rubber after moulding is substantially similar to the shape of rubber strip after colyliform parts-moulding.
Second step: preformed
Rubber strip preformed
Be rubber strip by the rubber mixing by extrusion molding, the length of this rubber strip is D
2, D
1: D
2=1:N, N=1.3, and by rubber strip head and the tail overlap joint, being about to head and the tail two ends touches together, the tangent plane complementation at described rubber strip two ends, as rubber strip head and the tail two ends be inclined-plane parallel to each other, engaged zigzag all can, in the time that head and the tail overlap, can be good at coordinating.
The preformed of plastics wheel disc
Plastic grain is placed in to preforming tool and is pre-formed as plastics powder agglomates by compressing mode, in compressing process, apply 100kgf/cm
2pressure, the thickness of described " plastics powder agglomates " is greater than finished product thickness, and pressure is only provided in preformed process, does not heat.
The 3rd step: high-temperature molding
Described plastics powder agglomates is placed in high-temperature molding mould, and the rubber strip of head and the tail overlap joint is set on the outer peripheral face of plastics powder agglomates, applies 150kgf/cm
2pressure, simultaneously with temperature T heating, T=220 DEG C, the duration is 700 seconds, forms the semi-finished product of described colyliform parts with this.
The 4th step: normal temperature sizing
Described semi-finished product are taken out in the die cavity of high-temperature molding mould, put it into immediately in normal temperature shaper, so that semi-finished product are carried out to normal temperature sizing, owing to having met the high-temperature molding of plastics, after causing depanning, product is difficult for sizing, therefore need to carry out the step of normal temperature sizing.
The 5th step: fine finishining
According to the specific requirement of product, the semi-finished product after normal temperature sizing are carried out to fine finishining, comprise the semi-finished product burr removing after normal temperature sizing, adhere to optional feature, dimensioned, decoration etc.
It is rubber that the present invention uses elastomeric compound mixing in manufacture process, it is the plastic grain of minor diameter more by plastic particle processing general on market simultaneously, then be rubber strip by the rubber extruding mixing, plastic grain is suppressed into plastics powder agglomates, again rubber strip is set on the outer peripheral face of plastics powder agglomates, the pressurization of heating, in this process, what between rubber and plastics, occur is not only connection physically, in high-temperature molding process, between rubber and plastics, also there is connection chemically, due to the reaction of high temperature, destroy rubber and plastic component molecular structure separately, rubber curing forming, composition surface moulding between plastically welding moulding and rubber and plastics all occurs at one time, there is overlap joint physically in the molecular structure that has produced rubber and plastics, make bond strength between the two obtain maximum improvement.And only there is the composition surface moulding between rubber and plastics in prior art in manufacture process.The present invention has improved the bond strength between rubber and plastics after complete moulding with this, has increased the bonding area between colyliform parts rubber and plastics, has improved bond strength, and large leap ahead its service life.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (1)
1. a manufacture method for colyliform parts, is characterized in that: described colyliform parts comprise a plastics wheel disc, and the girth of this plastics wheel disc is D
1, it is circumferentially provided with a circle rubber strip plastic wheel rim, manufactures described colyliform parts and is made up of following steps:
The first step: prepare material
By mixing elastomeric compound general on market be rubber, described elastomeric compound is that compounding ingredient is mixed in to the non cross-linked state in bulk, granular and Powdered rubber, and there is the sizing material of mobility, it is the blank of manufacturing rubber, be semi-finished product, in the time using elastomeric compound mixing of rubber, do not add temperature, make its incomplete moulding, the rubber after moulding is substantially similar to the shape of rubber strip after colyliform parts-moulding;
The plastic grain that becomes diameter to be less than 0.1 millimeter plastic particle processing general on market;
Second step: preformed
Rubber strip preformed
Be rubber strip by the rubber mixing by extrusion molding, the length of this rubber strip is D
2, D
1: D
2=1:N, 1<N<1.5, and by rubber strip head and the tail overlap joint, be about to head and the tail two ends and touch together, the tangent plane complementation at described rubber strip two ends can be good at coordinating in the time that head and the tail overlap;
The preformed of plastics wheel disc
Plastic grain is placed in to preforming tool and is pre-formed as plastics powder agglomates by compressing mode, the thickness of plastics powder agglomates is greater than finished product thickness, and pressure is only provided in preformed process, does not heat the F that exerts pressure in compressing process, 80kgf/cm
2<F<120 kgf/cm
2;
The 3rd step: high-temperature molding
Described plastics powder agglomates is placed in high-temperature molding mould, and the rubber strip of head and the tail overlap joint is set on the outer peripheral face of plastics powder agglomates, the F that exerts pressure, 120kgf/cm
2<F<200 kgf/cm
2, simultaneously with temperature T heating, 200 DEG C of <T<240 DEG C, the duration is 600 seconds ~ 800 seconds, forms the semi-finished product of described colyliform parts with this;
The 4th step: normal temperature sizing
Described semi-finished product are taken out in the die cavity of high-temperature molding mould, put it into immediately in normal temperature shaper, so that semi-finished product are carried out to normal temperature sizing;
The 5th step: fine finishining
According to the specific requirement of product, the semi-finished product after normal temperature sizing are carried out to fine finishining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437547.9A CN102922741B (en) | 2012-11-06 | 2012-11-06 | Manufacturing method of wheel-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437547.9A CN102922741B (en) | 2012-11-06 | 2012-11-06 | Manufacturing method of wheel-shaped part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102922741A CN102922741A (en) | 2013-02-13 |
| CN102922741B true CN102922741B (en) | 2014-12-03 |
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ID=47637733
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210437547.9A Active CN102922741B (en) | 2012-11-06 | 2012-11-06 | Manufacturing method of wheel-shaped part |
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| CN (1) | CN102922741B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283851B (en) * | 2017-06-27 | 2020-04-28 | 河南平高电气股份有限公司 | Rubber strip connecting method, sealing ring processing technology and processing equipment |
| CN110936628A (en) * | 2019-12-18 | 2020-03-31 | 株洲时代新材料科技股份有限公司 | All-terrain crawler-type multifunctional vehicle traveling system load wheel and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01225523A (en) * | 1988-03-07 | 1989-09-08 | Hitachi Ltd | Injection molded product with insert |
| KR20020058139A (en) * | 2000-12-29 | 2002-07-12 | 이계안 | Rubber for plastic hub of damper pulley in automibile |
| CN200982342Y (en) * | 2006-11-13 | 2007-11-28 | 李耀恭 | Highly abrasive-resistant plastic composite trolley |
| CN101691056A (en) * | 2009-10-19 | 2010-04-07 | 北京国网富达科技发展有限责任公司 | Method for producing plastic pulley wheel and plastic pulley wheel |
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