CN107571527A - A kind of production technology of automobile rare earth oil-containing modified MC nylon casting bushing and its application - Google Patents
A kind of production technology of automobile rare earth oil-containing modified MC nylon casting bushing and its application Download PDFInfo
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- CN107571527A CN107571527A CN201710756703.0A CN201710756703A CN107571527A CN 107571527 A CN107571527 A CN 107571527A CN 201710756703 A CN201710756703 A CN 201710756703A CN 107571527 A CN107571527 A CN 107571527A
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Abstract
The invention discloses a kind of production technology of automobile rare earth oil-containing modified MC nylon casting bushing and its application, including processing step is produced by below：Touch tool layout design；Touch tool manufacture；Nylon monomer-cast nylon material is processed：According to the performance of bushing, from raw material of the corresponding modification of nylon as casting, it is then heated into smelter under 260 DEG C of 280 DEG C of temperature conditionss；Casting and cooling procedure：Bushing is touched into tool and is preheated to 150 DEG C 200 DEG C, then in inert gas environment, bushing after the nylon monomer-cast nylon material injection preheating of molten condition is touched in tool, and it is pressed in using pressing plate and carries out touching tool upper end pressurize, avoid cast(ing) surface coarse, be finally slowly cooled to room temperature casting under field conditions (factors)；Machining；Heat treatment：Nylon monomer-cast nylon bushing standard is put into progress thermalization processing in the atoleine pond of 100 DEG C of 150 DEG C of temperature conditionss；Finished product cools down.Present invention also offers the performance of the nylon monomer-cast nylon bushing and application process.
Description
Technical field
The present invention relates to bushing processing technique field, more particularly to a kind of automobile rare earth oil-containing modified MC nylon casting bushing
Production technology and its application.
Background technology
In automotive field, the bimetal liner as parts plays vital effect.For proof strength and wear-resisting
Property, high is required to manufacture material, to the trade mark of steel, the trade mark of copper and the thickness of copper clearly require, and processing technology
Complexity, the feature of environmental protection is poor, and manufacturing cost is high.The wearability of bimetal liner, damping property are also not ideal in performance, especially
It is in the state of oil starvation, service life is even more that place significantly is short.Therefore need to develop a kind of nylon monomer-cast nylon bushing come more than solving
Deficiency.
The content of the invention
The present invention proposes production technology and its application of a kind of automobile rare earth oil-containing modified MC nylon casting bushing, with solution
The problem of being proposed in certainly above-mentioned background technology.
The present invention proposes a kind of production technology of automobile nylon monomer-cast nylon bushing, comprises the following steps：
S1：Touch tool layout design：According to bushing drawing requirement, design overall bushing and touch tool；
S2：Touch tool manufacture：According to tool drawing requirement is touched in S1, the actual processing process that bushing touches tool is carried out；
S3：Nylon monomer-cast nylon material is processed：According to the performance of bushing, from original of the corresponding modification of nylon as casting
Material, it is then heated into smelter under 260 DEG C of -280 DEG C of temperature conditionss；
S4：Casting and cooling procedure：Gained bushing in S2 is touched into tool and is preheated to 150 DEG C -200 DEG C, then in inert gas
In environment, the bushing after the nylon monomer-cast nylon material injection preheating of gained molten condition in S3 is touched in tool, and is pressed in using pressing plate
Carry out touching tool upper end pressurize, avoid cast(ing) surface coarse, be finally slowly cooled to room temperature casting under field conditions (factors)；
S5：Machining：Required according to design drawing in S1, obtained nylon monomer-cast nylon bushing blank in S4 is subjected to essence
Processing, obtains nylon monomer-cast nylon bushing standard；
S6：Heat treatment：In order to prevent and eliminate the residual stress in product or the change in size caused by hygroscopic effect,
Gained nylon monomer-cast nylon bushing standard in S5 is put into the atoleine pond of 100 DEG C of -150 DEG C of temperature conditionss and carried out at thermalization
Reason, thermalization processing time are controlled in 15min-30min；
S7：Finished product cools down：By in nylon monomer-cast nylon bushing standard of the thermalization in S6 after treated again inert gas environment from
Room temperature so is cooled to, obtains final nylon monomer-cast nylon bushing finished product.
Preferably, in S1 overall bushing touch tool profile be designed according to actual bush structure, that is, be designed as carrying endoporus
Cylindrical structural, and oil groove of different shapes is distributed with endoporus.
Preferably, the preparation process of modification of nylon casting raw material is as follows in S3：
A1, caprolactam monomer heated melted, then add 0.2% catalyst n aOH, by both it is well mixed after,
Heat up and vacuumize, 15-20min is kept at 110 DEG C, its moisture is down to below 300ppm；
0.3% auxiliary agent TDI is added in A2, mixed liquor obtained by into A1, is stirred, then rapid casting to mould
In, and mold temperature is maintained at 160 DEG C -170 DEG C, time control is completed in 15min-20min, polymerisation；
A3, after the demoulding, the high polymer finished product of formulation is naturally cooled into room temperature, obtain final modification of nylon casting former material
Material.
Preferably, in order to improve thermal treatment quality, prevent from making nylon bush standard hardness be present not because of uneven heating
Uniform hidden danger, atoleine bottom of pond face chock block, nylon bush standard is placed on wooden unit and is heat-treated in S6.
Preferably, it is bad in order to prevent from being vented at mold cavity corner, rising head should be set with profit made from S2 on mould
In exhaust.
A kind of production technology of automobile rare earth oil-containing modified MC nylon casting bushing proposed by the present invention and its application are beneficial
Effect is：Using rare earth oil-containing MC dragon bushings, i.e. nylon monomer-cast nylon bushing made from this technique, not only manufacturing process is simple, into
This is low, in light weight, and the feature of environmental protection, usability are better than bimetal liner, can be obtained extensively in the auto parts and components field
Promote and apply.
Embodiment
With reference to specific embodiment, the present invention will be further described.
Embodiment 1
The present invention proposes a kind of production technology of automobile nylon monomer-cast nylon bushing, comprises the following steps：
S1：Touch tool layout design：According to bushing drawing requirement, design overall bushing and touch tool, and overall bushing touches tool profile
Be designed according to actual bush structure, that is, be designed as the cylindrical structural with endoporus, and endoporus be distributed with it is of different shapes
Oil groove；
S2：Touch tool manufacture：According to tool drawing requirement is touched in S1, the actual processing process that bushing touches tool is carried out, in order to prevent
Exhaust is bad at mold cavity corner, should set rising head made from S2 on mould in favor of exhaust；
S3：Nylon monomer-cast nylon material is processed：According to the performance of bushing, from original of the corresponding modification of nylon as casting
Material, it is then heated into smelter under 260 DEG C of temperature conditionss；
S4：Casting and cooling procedure：Gained bushing in S2 is touched into tool and is preheated to 150 DEG C, then in inert gas environment,
Bushing after the nylon monomer-cast nylon material injection preheating of gained molten condition in S3 is touched in tool, and is pressed in using pressing plate and carries out touching tool
Upper end pressurize, avoid cast(ing) surface coarse, be finally slowly cooled to room temperature casting under field conditions (factors)；
S5：Machining：Required according to design drawing in S1, obtained nylon monomer-cast nylon bushing blank in S4 is subjected to essence
Processing, obtains nylon monomer-cast nylon bushing standard；
S6：Heat treatment：In order to prevent and eliminate the residual stress in product or the change in size caused by hygroscopic effect,
Gained nylon monomer-cast nylon bushing standard in S5 is put into progress thermalization processing, thermalization in the atoleine pond of 100 DEG C of temperature conditionss
Processing time is controlled in 15min, in order to improve thermal treatment quality, prevents from making nylon bush standard exist firmly because of uneven heating
Uneven hidden danger is spent, the atoleine bottom of pond face chock block in S6, set standard, which is placed on wooden unit, to be heat-treated；
S7：Finished product cools down：By in nylon monomer-cast nylon bushing standard of the thermalization in S6 after treated again inert gas environment from
Room temperature so is cooled to, obtains final nylon monomer-cast nylon bushing finished product.
The preparation process of modification of nylon casting raw material is as follows in S3：
A1, caprolactam monomer heated melted, then add 0.2% catalyst n aOH, by both it is well mixed after,
Heat up and vacuumize, 15min is kept at 110 DEG C, its moisture is down to below 300ppm；
0.3% auxiliary agent TDI is added in A2, mixed liquor obtained by into A1, is stirred, then rapid casting to mould
In, and mold temperature is maintained at 160 DEG C, time control is completed in 15min, polymerisation；
A3, after the demoulding, the high polymer finished product of formulation is naturally cooled into room temperature, obtain final modification of nylon casting former material
Material.
Embodiment 2
The present invention proposes production technology and its application of a kind of automobile rare earth oil-containing modified MC nylon casting bushing, including
Following steps：
S1：Touch tool layout design：According to bushing drawing requirement, design overall bushing and touch tool, and overall bushing touches tool profile
Be designed according to actual bush structure, that is, be designed as the cylindrical structural with endoporus, and endoporus be distributed with it is of different shapes
Oil groove；
S2：Touch tool manufacture：According to tool drawing requirement is touched in S1, the actual processing process that bushing touches tool is carried out, in order to prevent
Exhaust is bad at mold cavity corner, should set rising head made from S2 on mould in favor of exhaust；
S3：Nylon monomer-cast nylon material is processed：According to the performance of bushing, from original of the corresponding modification of nylon as casting
Material, it is then heated into smelter under 270 DEG C of temperature conditionss；
S4：Casting and cooling procedure：Gained bushing in S2 is touched into tool and is preheated to 175 DEG C, then in inert gas environment,
Bushing after the nylon monomer-cast nylon material injection preheating of gained molten condition in S3 is touched in tool, and is pressed in using pressing plate and carries out touching tool
Upper end pressurize, avoid cast(ing) surface coarse, be finally slowly cooled to room temperature casting under field conditions (factors)；
S5：Machining：Required according to design drawing in S1, obtained nylon monomer-cast nylon bushing blank in S4 is subjected to essence
Processing, obtains nylon monomer-cast nylon bushing standard；
S6：Heat treatment：In order to prevent and eliminate the residual stress in product or the change in size caused by hygroscopic effect,
Gained nylon monomer-cast nylon bushing standard in S5 is put into progress thermalization processing, thermalization in the atoleine pond of 125 DEG C of temperature conditionss
Processing time is controlled in 23min, in order to improve thermal treatment quality, prevents from making nylon bush standard exist firmly because of uneven heating
Uneven hidden danger is spent, the atoleine bottom of pond face chock block in S6, set standard, which is placed on wooden unit, to be heat-treated；
S7：Finished product cools down：By in nylon monomer-cast nylon bushing standard of the thermalization in S6 after treated again inert gas environment from
Room temperature so is cooled to, obtains final nylon monomer-cast nylon bushing finished product.
The preparation process of modification of nylon casting raw material is as follows in S3：
A1, caprolactam monomer heated melted, then add 0.2% catalyst n aOH, by both it is well mixed after,
Heat up and vacuumize, 17min is kept at 110 DEG C, its moisture is down to below 300ppm；
0.3% auxiliary agent TDI is added in A2, mixed liquor obtained by into A1, is stirred, then rapid casting to mould
In, and mold temperature is maintained at 165 DEG C, time control is completed in 17min, polymerisation；
A3, after the demoulding, the high polymer finished product of formulation is naturally cooled into room temperature, obtain final modification of nylon casting former material
Material.
Embodiment 3
The present invention proposes production technology and its application of a kind of automobile rare earth oil-containing modified MC nylon casting bushing, including
Following steps：
S1：Touch tool layout design：According to bushing drawing requirement, design overall bushing and touch tool, and overall bushing touches tool profile
Be designed according to actual bush structure, that is, be designed as the cylindrical structural with endoporus, and endoporus be distributed with it is of different shapes
Oil groove；
S2：Touch tool manufacture：According to tool drawing requirement is touched in S1, the actual processing process that bushing touches tool is carried out, in order to prevent
Exhaust is bad at mold cavity corner, should set rising head made from S2 on mould in favor of exhaust；
S3：Nylon monomer-cast nylon material is processed：According to the performance of bushing, from original of the corresponding modification of nylon as casting
Material, it is then heated into smelter under 280 DEG C of temperature conditionss；
S4：Casting and cooling procedure：Gained bushing in S2 is touched into tool and is preheated to 200 DEG C, then in inert gas environment,
Bushing after the nylon monomer-cast nylon material injection preheating of gained molten condition in S3 is touched in tool, and is pressed in using pressing plate and carries out touching tool
Upper end pressurize, avoid cast(ing) surface coarse, be finally slowly cooled to room temperature casting under field conditions (factors)；
S5：Machining：Required according to design drawing in S1, obtained nylon monomer-cast nylon bushing blank in S4 is subjected to essence
Processing, obtains nylon monomer-cast nylon bushing standard；
S6：Heat treatment：In order to prevent and eliminate the residual stress in product or the change in size caused by hygroscopic effect,
Gained nylon monomer-cast nylon bushing standard in S5 is put into progress thermalization processing, thermalization in the atoleine pond of 150 DEG C of temperature conditionss
Processing time is controlled in 30min, in order to improve thermal treatment quality, prevents from making nylon bush standard exist firmly because of uneven heating
Uneven hidden danger is spent, the atoleine bottom of pond face chock block in S6, set standard, which is placed on wooden unit, to be heat-treated；
S7：Finished product cools down：By in nylon monomer-cast nylon bushing standard of the thermalization in S6 after treated again inert gas environment from
Room temperature so is cooled to, obtains final nylon monomer-cast nylon bushing finished product.
The preparation process of modification of nylon casting raw material is as follows in S3：
A1, caprolactam monomer heated melted, then add 0.2% catalyst n aOH, by both it is well mixed after,
Heat up and vacuumize, 20min is kept at 110 DEG C, its moisture is down to below 300ppm；
0.3% auxiliary agent TDI is added in A2, mixed liquor obtained by into A1, is stirred, then rapid casting to mould
In, and mold temperature is maintained at 170 DEG C, time control is completed in 20min, polymerisation；
A3, after the demoulding, the high polymer finished product of formulation is naturally cooled into room temperature, obtain final modification of nylon casting former material
Material.
The performance of nylon monomer-cast nylon bushing and its application：
The nylon monomer-cast nylon bushing of this technique productions, there is following performance：
1. high intensity, being capable of long-time bearing load；
2. good resilience, can bend and indeformable, while can keep toughness, repeated stock is resisted；
3. wear-resistant and self-lubrication, there is provided better than service behaviour of the bronze in oil-free (or de-oiling) lubrication applications, reduce
Consumption, save the energy；
4. inhaling noise, damping, small more of nylon monomer-cast nylon modular ratio metal, the decay to vibrations is big, there is provided better than double gold
Category prevents the practical approach of noise；
5. compared with bimetallic, nylon monomer-cast nylon hardness is low, does not damage to grinding part；
6. it has good machining property etc., compared with the bimetal liner that we produce now, whether use
Property, physical or mechanical properties, all meet and exceed bimetal liner.Therefore its application field almost spreads over institute
Some engineering machinery and auto industry field.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of production technology of automobile nylon monomer-cast nylon bushing, it is characterised in that comprise the following steps：
S1：Touch tool layout design：According to bushing drawing requirement, design overall bushing and touch tool；
S2：Touch tool manufacture：According to tool drawing requirement is touched in S1, the actual processing process that bushing touches tool is carried out；
S3：Nylon monomer-cast nylon material is processed：According to the performance of bushing, from former material of the corresponding modification of nylon as casting
Material, then heats smelter by it under 260 DEG C of -280 DEG C of temperature conditionss；
S4：Casting and cooling procedure：Gained bushing in S2 is touched into tool and is preheated to 150 DEG C -200 DEG C, then in inert gas environment
In, the bushing after the nylon monomer-cast nylon material injection preheating of gained molten condition in S3 is touched in tool, and progress is pressed in using pressing plate
Tool upper end pressurize is touched, avoids cast(ing) surface coarse, is finally slowly cooled to room temperature casting under field conditions (factors)；
S5：Machining：Required according to design drawing in S1, obtained nylon monomer-cast nylon bushing blank in S4 is subjected to finishing
Work, obtain nylon monomer-cast nylon bushing standard；
S6：Heat treatment：In order to prevent and eliminate the residual stress in product or the change in size caused by hygroscopic effect, by S5
Middle gained nylon monomer-cast nylon bushing standard is put into progress thermalization processing in the atoleine pond of 100 DEG C of -150 DEG C of temperature conditionss, heat
Change processing time control in 15min-30min；
S7：Finished product cools down：Will be naturally cold in nylon monomer-cast nylon bushing standard of the thermalization in S6 after treated again inert gas environment
But to room temperature, final nylon monomer-cast nylon bushing finished product is obtained.
A kind of 2. production technology of automobile nylon monomer-cast nylon bushing according to claim 1, it is characterised in that：Integrally served as a contrast in S1
Set is touched tool profile and is designed according to actual bush structure, that is, is designed as the cylindrical structural with endoporus, and endoporus is distributed with
Oil groove of different shapes.
A kind of 3. production technology of automobile nylon monomer-cast nylon bushing according to claim 1, it is characterised in that：Modified Buddhist nun in S3
The preparation process of dragon casting raw material is as follows：
A1, caprolactam monomer heated melted, then add 0.2% catalyst n aOH, by both it is well mixed after, heating
And vacuumize, 15-20min is kept at 110 DEG C, its moisture is down to below 300ppm；
0.3% auxiliary agent TDI is added in A2, mixed liquor obtained by into A1, stirs, then casts into mould rapidly, and
Mold temperature is set to be maintained at 160 DEG C -170 DEG C, time control is completed in 15min-20min, polymerisation；
A3, after the demoulding, the high polymer finished product of formulation is naturally cooled into room temperature, obtain final modification of nylon casting raw material.
A kind of 4. production technology of automobile nylon monomer-cast nylon bushing according to claim 1, it is characterised in that：In order to improve heat
Quality is handled, prevents from making nylon bush standard the uneven hidden danger of hardness be present because of uneven heating, the atoleine in S6
Bottom of pond face chock block, nylon bush standard is placed on wooden unit and is heat-treated.
A kind of 5. production technology of automobile nylon monomer-cast nylon bushing according to claim 1, it is characterised in that：In order to prevent mould
Exhaust is bad at tool die cavity corner, should set rising head made from S2 on mould in favor of exhaust.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710756703.0A CN107571527A (en) | 2017-08-29 | 2017-08-29 | A kind of production technology of automobile rare earth oil-containing modified MC nylon casting bushing and its application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710756703.0A CN107571527A (en) | 2017-08-29 | 2017-08-29 | A kind of production technology of automobile rare earth oil-containing modified MC nylon casting bushing and its application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936918A (en) * | 2021-01-26 | 2021-06-11 | 中车青岛四方车辆研究所有限公司 | Nylon lining post-treatment process |
| CN113370433A (en) * | 2020-03-09 | 2021-09-10 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110336Y (en) * | 2007-12-04 | 2008-09-03 | 东风汽车有限公司 | Rubber-plastic composite bushing |
| CN105254871A (en) * | 2015-11-10 | 2016-01-20 | 沈阳化工大学 | Preparation method of toughened and modified steel rib cast MC nylon |
-
2017
- 2017-08-29 CN CN201710756703.0A patent/CN107571527A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110336Y (en) * | 2007-12-04 | 2008-09-03 | 东风汽车有限公司 | Rubber-plastic composite bushing |
| CN105254871A (en) * | 2015-11-10 | 2016-01-20 | 沈阳化工大学 | Preparation method of toughened and modified steel rib cast MC nylon |
Non-Patent Citations (1)
| Title |
|---|
| 鞍山矿山机修厂等: "圆锥破碎机φ720中心轴MC尼龙6衬套的制作和使用", 《金属矿山》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370433A (en) * | 2020-03-09 | 2021-09-10 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
| CN113370433B (en) * | 2020-03-09 | 2023-04-18 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
| CN112936918A (en) * | 2021-01-26 | 2021-06-11 | 中车青岛四方车辆研究所有限公司 | Nylon lining post-treatment process |
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