CN107553949B - Method and equipment for manufacturing air chamber rubber diaphragm - Google Patents
Method and equipment for manufacturing air chamber rubber diaphragm Download PDFInfo
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- CN107553949B CN107553949B CN201710933510.8A CN201710933510A CN107553949B CN 107553949 B CN107553949 B CN 107553949B CN 201710933510 A CN201710933510 A CN 201710933510A CN 107553949 B CN107553949 B CN 107553949B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010409 ironing Methods 0.000 claims abstract description 52
- 238000004073 vulcanization Methods 0.000 claims abstract description 34
- 238000004080 punching Methods 0.000 claims abstract description 21
- 238000007493 shaping process Methods 0.000 claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 15
- 239000000047 product Substances 0.000 claims description 13
- 238000004513 sizing Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Diaphragms And Bellows (AREA)
Abstract
A manufacturing method and equipment of an air chamber rubber diaphragm belong to the technical field of manufacturing methods and equipment of air chamber rubber diaphragms, and the manufacturing method of the air chamber rubber diaphragm comprises the following steps: the method for performing the first vulcanization preforming and performing the second vulcanization shaping, wherein in the second vulcanization shaping, canvas is placed above the lower half part of the air chamber rubber diaphragm and the middle hole cut by the ironing head comprises the following specific steps: (1) placing a middle hole ironing tool on the lower die cavity; (2) placing the canvas which is not cut by the middle hole above the lower half part of the air chamber rubber diaphragm which is preformed for the first time; (3) before the second vulcanization shaping, the ironing head is positioned, a punching auxiliary plate is placed in the inner cavity of the middle sleeve, and the ironing head is inserted into the round hole; (4) and rapidly cutting canvas at the middle hole position by using an ironing head; the ironing hole tool comprises a support column, a panel, two side fixing plates, a connecting rod and an ironing head. The beneficial effects of the invention are as follows: the defect that the high requirements of the edges of the middle holes on the canvas distance cannot be met is overcome, and the service life of the air chamber diaphragm is prolonged.
Description
Technical Field
The invention relates to a manufacturing method of an air chamber rubber diaphragm, in particular to a manufacturing method of an air chamber rubber diaphragm capable of meeting the high requirement of a middle hole edge on a canvas distance and equipment thereof, and belongs to the technical field of manufacturing methods and equipment of air chamber rubber diaphragms.
Background
The air chamber rubber diaphragm is a product with canvas clamped in the middle, and is widely applied to an automobile braking system, the air chamber rubber diaphragm is a core part in various heavy automobile braking parts with the loading capacity of more than 3 tons, the automobile is safe to run, the automobile has high air pressure of about 0.8Mpa during braking, the air pressure pushes the air chamber rubber diaphragm to displace, the air chamber pressure is increased, the push rod is pushed forward, and finally the pushing force is transmitted to a brake patch in a hub, the brake patch is opened, the wheel is held tightly, the braking effect is achieved, and the purpose of braking is achieved, so the air chamber rubber diaphragm is an essential key part in the automobile.
As such, the requirements for the finished product of the dome rubber diaphragm are stringent, both at home and abroad, and in the American society of automotive Engineers AEJ 1450-1995. For example: bench life test, high and low products, leakage measurement at normal temperature, low-temperature rebound test, high and low-temperature durability test (high temperature 70-80 ℃ C., low temperature-45-55 ℃ C.), finished product burst strength and the like, and the quality index of the finished product of the rubber diaphragm of the steam chamber is closely related to the preparation process of the finished product. According to the current domestic and foreign practice, one-step molding vulcanization and secondary vulcanization processes are adopted, but the problems are numerous. For example, the high requirements of the canvas distance from the edges of the mesopores cannot be met.
Disclosure of Invention
The invention aims at overcoming the defect that the prior art of the method and the equipment for manufacturing the air chamber rubber diaphragm cannot meet the high requirement of the edge of a middle hole on the distance of canvas.
The technical scheme adopted by the invention for realizing the purpose is as follows: a manufacturing method of an air chamber rubber diaphragm comprises the following steps:
step one, preparing a one-step shaping mold of an air chamber rubber diaphragm: the mold comprises an upper mold, a middle sleeve, a lower mold and a ferrule, wherein the middle sleeve is divided into an upper part and a lower part, the upper part is an upper cavity, and the lower part is a lower cavity; the ferrule can be arranged at the outer edge of the upper part of the lower die and can play a role in pre-tightening canvas;
step two, first vulcanization: metering the sizing material required by the lower half part of the rubber diaphragm of the air chamber and placing the sizing material into a lower cavity; the upper die is pressed downwards to perform primary vulcanization preforming;
thirdly, canvas is put and a middle hole is cut: the upper die is opened upwards, canvas is put in, the canvas is moved into the ferrule, and a middle hole is cut;
step four, secondary vulcanization: the upper die mould is opened upwards, a middle sleeve is put in, the sizing material needed by the upper half part of the air chamber rubber diaphragm is metered, and the sizing material is put in an upper cavity, the upper die mould is pressed downwards again to carry out secondary shaping vulcanization, heating and pressurizing are carried out, so that the upper half part of the air chamber rubber diaphragm, canvas and the lower half part of the air chamber rubber diaphragm are pressed and vulcanized to form an air chamber rubber diaphragm final product;
in the third step, the concrete method for placing canvas above the lower half part of the air chamber rubber diaphragm and cutting the middle hole by the ironing head is as follows:
(1) placing a middle hole ironing tool on the lower die cavity, wherein the middle hole ironing tool comprises an ironing head;
(2) placing the canvas which is not cut by the middle hole above the lower half part of the air chamber rubber diaphragm which is preformed for the first time;
(3) the punching auxiliary plate is round, and the diameter of the punching auxiliary plate corresponds to the size of the inner cavity of the lower die; a round hole is arranged in the center of the punching auxiliary plate, and the diameter of the round hole corresponds to the diameter of the ironing head; before the second vulcanization shaping, the ironing head is positioned, a punching auxiliary plate is put into the inner cavity of the middle sleeve, and the punching auxiliary plate is tightly matched with the inner cavity of the lower die; inserting the head of the ironing head into the round hole, wherein the head of the ironing head is tightly matched with the round hole; tightening the fixing screw, and removing the punching auxiliary plate;
(4) and the canvas at the corresponding position of the ironing head is cut by the ironing head to form a middle hole.
The air chamber rubber diaphragm product treated by the steps can meet the high requirement of the middle hole edge on the canvas distance, the middle hole edge smaller than 4.5mm can allow no canvas, and canvas is needed to be arranged at the position exceeding 4.5 mm; the canvas is centered or biased downward, i.e. to the non-pressure side.
The shape of the upper cavity and the lower cavity corresponds to the shape of the rubber diaphragm of the air chamber.
In step three, the first preforming: forming temperature: the lower die 165+/-5 ℃ and the upper die 170+/-5 ℃ are used for preforming the sizing material for 60-80 seconds, and the preforming pressure is 16-18MPa.
In the fourth step, secondary shaping and vulcanization are carried out, the vulcanization temperature is 170-180 ℃, the vulcanization time is 300-360 seconds, and the secondary shaping and vulcanization pressure is as follows: 15+/-2 MPa.
The diameter of the central hole of the canvas is 30.5mm.
The rubber material is NR rubber compound, and the hardness is Shore A60-70.
The equipment used in the manufacturing method of the air chamber rubber diaphragm comprises:
the middle hole ironing tool also comprises a support column, a panel, two side fixing plates and a connecting rod; the two side fixing plates are fixedly connected with the two ends of the panel respectively, the support posts are arranged below the panel, and the upper ends of the support posts are fixedly connected with the panel; one end of the connecting rod is fixedly connected with the side edge of the fixing plate, and the lower part of the other end of the connecting rod is fixedly connected with the upper part of the scalding head side.
The side of the fixed plate is provided with a fixed slot, the connecting rod comprises a connecting rod front part and a connecting rod rear part, a connecting plate is arranged below the connecting rod rear part and the side of the fixed plate, the inner end of the connecting plate is connected with the fixed slot through a fixed screw, and the outer end of the connecting plate is connected with the connecting rod rear part through a nut screw; the front part of the connecting rod is connected with the rear part of the connecting rod through an adjusting screw, and the angle between the front part of the connecting rod and the rear part of the connecting rod is adjustable; the fixed plate is provided with a guide post;
the ironing head is internally provided with a heating resistance wire, and the temperature of the ironing head is 250-260 ℃ when the ironing head is in a working state.
Compared with the prior art, the invention has the beneficial effects that:
the canvas is firstly cut on the canvas and then vulcanized, after the first preforming, the canvas at the middle hole position is quickly cut off by a tool and then is secondarily shaped and vulcanized, so that the distance between the edges of the middle holes of the product and the canvas meets high requirements, the canvas around the middle holes of the air chamber diaphragm is uniformly distributed within a range of 4.5mm away from the center, no canvas can be allowed at the edges of the middle holes, and the canvas must be arranged at the position exceeding 4.5 mm. The use strength of the air chamber diaphragm is increased, the air chamber diaphragm is more uniformly stressed during working, and the defect that the high requirement of the middle hole edge on the canvas distance cannot be met is overcome; meanwhile, the service life of the air chamber diaphragm is prolonged, the service life of the air chamber diaphragm is detected through fatigue test, and the original air chamber diaphragm is between 50 and 80 ten thousand times, and is easy to fatigue and easy to wear. The service life of the automobile can be prolonged by 3-4 times up to 150-200 ten thousand times, and the running reliability and safety are greatly improved.
Drawings
Fig. 1 is: step three, vulcanizing a preformed structure front view for the first time;
fig. 2 is: an enlarged view of a portion a of fig. 1;
fig. 3 is: the punching auxiliary plate is assembled with the lower die to carry out a front view of ironing head positioning;
fig. 4 is: in the fourth step, a structure front view of the second vulcanization shaping is carried out;
fig. 5 is: a front view of the middle hole ironing tool;
fig. 6 is: a top view of the middle hole ironing tool;
fig. 7 is: fig. 6 is an enlarged view of the portion B;
fig. 8 is: a main view enlarged diagram of the air chamber rubber diaphragm;
fig. 9 is: an enlarged view of the air chamber rubber diaphragm from bottom;
fig. 10 is: fig. 8 is an enlarged view of the portion C;
fig. 11 is: fig. 8 is an enlarged view of the portion D.
Reference numerals illustrate: the upper die 1, the middle sleeve 2, the lower die 3, the ferrule 4, the upper die cavity 5, the lower die cavity 6, the canvas 7, the ironing head 8, the punching auxiliary plate 9, the air chamber rubber diaphragm 10, the pillar 11, the panel 12, the fixing plate 13, the connecting rod 14, the connecting rod front 1401, the connecting rod rear 1402, the fixing groove 15, the connecting plate 16, the fixing screw 17, the nut screw 18, the upper half 19, the guide pillar 20, the adjusting screw 21 and the lower half 22.
Detailed Description
The invention will now be further described with reference to the drawings and specific examples, which are not intended to limit the invention.
As shown in fig. 1 to 11, a method for manufacturing a rubber diaphragm of an air chamber includes:
step one, preparing a one-step shaping mold of an air chamber rubber diaphragm: the mold comprises an upper mold 1, a middle sleeve 2, a lower mold 3 and a ferrule 4, wherein the middle sleeve 2 is divided into an upper part and a lower part, the upper part is an upper cavity 5, and the lower part is a lower cavity 6; the ferrule 4 can be arranged at the outer edge of the upper part of the lower die 3 and can play a role in pre-tightening the canvas 7;
step two, first vulcanization: the sizing material needed by the lower half 22 of the air chamber rubber diaphragm 10 is metered and put into the lower cavity 6; the upper die 1 is pressed downwards to perform primary vulcanization preforming;
step three, canvas 7 is put, and a middle hole is cut: the upper die 1 is opened upwards, canvas 7 is put in, the canvas is moved into the ferrule 4, and a middle hole is cut;
step four, secondary vulcanization: the upper die 1 is opened upwards, the middle sleeve 2 is put in, the sizing material needed by the upper half 19 of the air chamber rubber diaphragm 10 is metered and put in the upper cavity 5, the upper die 1 is pressed downwards again to carry out secondary shaping vulcanization, heating and pressurizing are carried out, so that the upper half 19 of the air chamber rubber diaphragm 10, the canvas 7 and the lower half 22 of the air chamber rubber diaphragm 10 are pressed and vulcanized to form the final product of the air chamber rubber diaphragm 10;
in the third step, the concrete method for placing the canvas 7 above the lower half 22 of the air chamber rubber diaphragm 10 and cutting the middle hole by the ironing head 8 is as follows:
(1) placing a middle hole ironing tool on a cavity of the lower die 3, wherein the middle hole ironing tool comprises an ironing head 8;
(2) the canvas 7 without the middle hole cut is put over the lower half 22 of the air chamber rubber diaphragm which has been preformed for the first time;
(3) the punching auxiliary plate 9 is round, and the diameter of the punching auxiliary plate 9 corresponds to the size of the inner cavity of the lower die 3; a round hole is arranged in the center of the punching auxiliary plate 9, and the diameter of the round hole corresponds to the diameter of the ironing head 8; before the second vulcanization shaping, the ironing head 8 is positioned, a punching auxiliary plate 9 is put into the inner cavity of the middle sleeve 2, and the punching auxiliary plate 9 and the inner cavity of the lower die 3 are tightly matched; the head of the ironing head 8 is inserted into the round hole and is tightly matched with each other; the fixing screw 17 is screwed down again, and the punching auxiliary plate 9 is removed;
(4) and the canvas 7 at the corresponding position of the ironing head 8 is cut by the ironing head 8 to form a middle hole.
The air chamber rubber diaphragm 10 product treated by the steps can meet the high requirement of the middle hole edge on the distance of the canvas 7, the middle hole edge smaller than 4.5mm can allow no canvas 7, and the canvas 7 is required to be arranged at the position exceeding 4.5 mm; the canvas 7 is centred or offset downwards, i.e. towards the non-pressure side. The canvas 7 is not allowed to shift centering or upward, i.e. to the pressure side.
The shape of the upper cavity 5 and the lower cavity 6 of the middle sleeve 2 corresponds to the shape of the air chamber rubber diaphragm 10.
In the second step, the first preforming: forming temperature: the lower die 3165+/-5 ℃ and the upper die 1170+/-5 ℃ are used for preforming the sizing material for 60-80 seconds, and the preforming pressure is 16-18MPa.
In the fourth step, secondary shaping and vulcanization are carried out, the vulcanization temperature is 170-180 ℃, the vulcanization time is 300-360 seconds, and the secondary shaping and vulcanization pressure is as follows: 15+/-2 MPa.
The diameter of the holes in the canvas 7 is 30.5mm, and the holes in the canvas 7 are exposed. That is, the canvas 7 is required to be centered, but the following deviations are allowed: the air chamber rubber diaphragm 10 product has a center hole diameter phi of 30.5mm, allowing no canvas 7 in the range of 30.5mm to 39.5 mm; the canvas 7 must be present where the centre hole diameter is greater than 39.5mm, i.e. 2 out of phase by 4.5 mm.
The rubber material is NR mixed rubber, the hardness is Shore A60-70, and the SAE J200M4AA615A13B13F17 standard is required to be met; the canvas 7 is made of nylon, the thickness is 0.55-0.8mm, the biaxial tensile strength is 750N/cm at minimum, the test sample is 10mm wide and 300mm long; the working temperature of the air chamber diaphragm product should satisfy: low temperature: -40 ℃ ± 1 °,1 hour; high temperature: 80 ℃ + -3 ℃,120 ℃ + -3 ℃ for 1 hour.
The equipment used in the manufacturing method of the air chamber rubber diaphragm comprises:
the middle hole ironing tool also comprises a support column 11, a panel 12, two side fixing plates 13 and a connecting rod 14; the two side fixing plates 13 are respectively and fixedly connected with two ends of the panel 12, the support posts 11 are arranged below the panel 12, and the upper ends of the support posts 11 are fixedly connected with the panel 12; one end of the connecting rod 14 is fixedly connected with the side edge of a fixed plate 13, and the lower part of the other end of the connecting rod 14 is fixedly connected with the upper part of the scalding head 8 side.
The side of the fixed plate 13 is provided with a fixed slot 15, the connecting rod 14 comprises a connecting rod front part 1401 and a connecting rod rear part 1402, a connecting plate 16 is arranged below the connecting rod rear part 1402 and the side of the fixed plate 13, the inner end of the connecting plate 16 is connected with the fixed slot 15 through a fixed screw 17, the outer end of the connecting plate 16 is connected with the connecting rod rear part 1402 through a nut screw 18, and the height of the ironing head 8 is adjusted through the connecting rod 14; the front link 1401 and the rear link 1402 are connected through an adjusting screw 21, and the angle alpha between the front link 1401 and the rear link 1402 is 124 degrees; the fixed plate 13 is provided with a guide post 20, and the upper die 1 moves up and down through the guide post 20.
A heating resistance wire (not shown in the figure) is arranged in the ironing head 8, and the temperature of the ironing head 8 is 250-260 ℃ in the working state.
The above embodiment is only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present invention should be included in the scope of the present invention.
Claims (8)
1. A manufacturing method of an air chamber rubber diaphragm comprises the following steps:
step one, preparing a one-step shaping mold of an air chamber rubber diaphragm: the mold comprises an upper mold, a middle sleeve, a lower mold and a ferrule, wherein the middle sleeve is divided into an upper part and a lower part, the upper part is an upper cavity, and the lower part is a lower cavity; the ferrule can be arranged at the outer edge of the upper part of the lower die;
step two, first vulcanization: metering the sizing material required by the lower half part of the rubber diaphragm of the air chamber and placing the sizing material into a lower cavity; the upper die is pressed downwards to perform primary vulcanization preforming;
thirdly, canvas is put and a middle hole is cut: the upper die is opened upwards, canvas is put in, the canvas is moved into the ferrule, and a middle hole is cut;
step four, secondary vulcanization: the upper die is opened upwards, the sizing material needed by the upper half part of the air chamber rubber diaphragm is metered and put into an upper cavity, the upper die is pressed downwards again to carry out secondary shaping vulcanization, heating and pressurizing are carried out, so that the upper half part of the air chamber rubber diaphragm, canvas and the lower half part of the air chamber rubber diaphragm are pressed and vulcanized to form an air chamber rubber diaphragm final product;
the method is characterized in that:
in the third step, the concrete method for placing canvas above the lower half part of the air chamber rubber diaphragm and cutting the middle hole by the ironing head is as follows:
(1) placing a middle hole ironing tool on the lower die cavity, wherein the middle hole ironing tool comprises an ironing head;
(2) placing the canvas which is not cut by the middle hole above the lower half part of the air chamber rubber diaphragm which is preformed for the first time;
(3) the punching auxiliary plate is round, and the diameter of the punching auxiliary plate corresponds to the size of the inner cavity of the lower die; a round hole is arranged in the center of the punching auxiliary plate, and the diameter of the round hole corresponds to the diameter of the ironing head; before the second vulcanization shaping, the ironing head is positioned, a punching auxiliary plate is put into the inner cavity of the middle sleeve, and the punching auxiliary plate is tightly matched with the inner cavity of the lower die; inserting the head of the ironing head into the round hole, wherein the head of the ironing head is tightly matched with the round hole; tightening the fixing screw, and removing the punching auxiliary plate;
(4) the canvas at the corresponding position of the ironing head is cut off by the ironing head to form a middle hole;
the air chamber rubber diaphragm product treated by the steps can meet the high requirement of the edges of the middle holes on the canvas distance, no canvas exists at the edges of the middle holes, which are smaller than 4.5mm, and canvas exists at the positions, which are larger than 4.5 mm; the canvas is centered or offset downwards, i.e. to the non-pressure side;
the diameter of the mesopores is 30.5mm, and the mesopores are exposed; that is, canvas centering is required, but the following deviations are allowed: the air chamber rubber diaphragm product has a center hole diameter phi of 30.5mm, and no canvas is allowed in the range of the center hole diameter of 30.5mm to the center hole diameter of 39.5 mm; canvas is necessary for the center hole diameter to be greater than 39.5mm, i.e., 2 4.5mm different.
2. The method for manufacturing the air chamber rubber diaphragm according to claim 1, which is characterized in that: the shape of the upper cavity and the lower cavity corresponds to the shape of the rubber diaphragm of the air chamber.
3. The method for manufacturing the air chamber rubber diaphragm according to claim 1, which is characterized in that: in the second step, the first preforming: forming temperature: the lower die 165+/-5 ℃ and the upper die 170+/-5 ℃ are used for preforming the sizing material for 60-80 seconds, and the preforming pressure is 16-18MPa.
4. The method for manufacturing the air chamber rubber diaphragm according to claim 1, which is characterized in that: in the fourth step, secondary shaping and vulcanization are carried out, the vulcanization temperature is 170-180 ℃, the vulcanization time is 300-360 seconds, and the secondary shaping and vulcanization pressure is as follows: 15+/-2 MPa.
5. The method for manufacturing the air chamber rubber diaphragm according to claim 1, which is characterized in that: the rubber material is NR rubber compound, and the hardness is Shore A60-70.
6. The apparatus for making air chamber rubber diaphragm according to claim 1, wherein: the middle hole ironing tool also comprises a support column, a panel, two side fixing plates and a connecting rod; the two side fixing plates are fixedly connected with the two ends of the panel respectively, the support posts are arranged below the panel, and the upper ends of the support posts are fixedly connected with the panel; one end of the connecting rod is fixedly connected with the side edge of a fixed plate, and the lower part of the other end of the connecting rod is fixedly connected with the upper part of the scalding head side.
7. The apparatus for making air chamber rubber diaphragm according to claim 6, wherein: the side of the fixed plate is provided with a fixed slot, the connecting rod comprises a connecting rod front part and a connecting rod rear part, a connecting plate is arranged below the connecting rod rear part and the side of the fixed plate, the inner end of the connecting plate is connected with the fixed slot through a fixed screw, and the outer end of the connecting plate is connected with the connecting rod rear part through a nut screw; the front part of the connecting rod is connected with the rear part of the connecting rod through an adjusting screw, and the angle between the front part of the connecting rod and the rear part of the connecting rod is adjustable; the fixed plate is provided with a guide post.
8. The apparatus for making air chamber rubber diaphragm according to claim 6, wherein: the ironing head is internally provided with a heating resistance wire, and the temperature of the ironing head is 250-260 ℃ when the ironing head is in a working state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933510.8A CN107553949B (en) | 2017-10-10 | 2017-10-10 | Method and equipment for manufacturing air chamber rubber diaphragm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933510.8A CN107553949B (en) | 2017-10-10 | 2017-10-10 | Method and equipment for manufacturing air chamber rubber diaphragm |
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| CN107553949A CN107553949A (en) | 2018-01-09 |
| CN107553949B true CN107553949B (en) | 2023-12-08 |
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| CN201710933510.8A Active CN107553949B (en) | 2017-10-10 | 2017-10-10 | Method and equipment for manufacturing air chamber rubber diaphragm |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111070750B (en) * | 2019-11-22 | 2022-04-22 | 广州机械科学研究院有限公司 | Production method of combined sealing element |
| CN113103470A (en) * | 2021-03-31 | 2021-07-13 | 青岛博锐智远减振科技有限公司 | Preparation mold and sample preparation method for rubber vulcanization adhesion performance test sample |
| CN113085318B (en) * | 2021-05-13 | 2022-12-27 | 河南理工大学 | Physical improvement method for thermal stability of high-temperature-resistant enhanced rubber component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189800246A (en) * | 1898-01-04 | 1899-01-04 | George Franklin Butterfield | Improvements in the Manufacture of Rubber-soled Boots and Shoes and Apparatus therefor. |
| GB201058A (en) * | 1922-08-17 | 1923-07-26 | Revere Rubber Co | Improvements in or relating to the manufacture of hollow rubber articles, particularly tennis balls |
| GB208383A (en) * | 1922-12-19 | 1923-12-20 | Fisk Rubber Co | Improvements in vulcanizing apparatus |
| KR19990011663U (en) * | 1998-08-31 | 1999-03-25 | 한영욱 | Diaphragm Molding Mold with Vulcanized Rubber Core |
| JP2002264141A (en) * | 2001-03-07 | 2002-09-18 | Fujikura Rubber Ltd | Mold for molding cloth-containing diaphragm |
| CN101249702A (en) * | 2008-03-25 | 2008-08-27 | 诸先桥 | Preparation technique of automobile brake steam chamber separator |
| CN203004125U (en) * | 2012-12-26 | 2013-06-19 | 重庆中彦仪表配件有限责任公司 | Gas meter diaphragm vulcanizing mold |
-
2017
- 2017-10-10 CN CN201710933510.8A patent/CN107553949B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189800246A (en) * | 1898-01-04 | 1899-01-04 | George Franklin Butterfield | Improvements in the Manufacture of Rubber-soled Boots and Shoes and Apparatus therefor. |
| GB201058A (en) * | 1922-08-17 | 1923-07-26 | Revere Rubber Co | Improvements in or relating to the manufacture of hollow rubber articles, particularly tennis balls |
| GB208383A (en) * | 1922-12-19 | 1923-12-20 | Fisk Rubber Co | Improvements in vulcanizing apparatus |
| KR19990011663U (en) * | 1998-08-31 | 1999-03-25 | 한영욱 | Diaphragm Molding Mold with Vulcanized Rubber Core |
| JP2002264141A (en) * | 2001-03-07 | 2002-09-18 | Fujikura Rubber Ltd | Mold for molding cloth-containing diaphragm |
| CN101249702A (en) * | 2008-03-25 | 2008-08-27 | 诸先桥 | Preparation technique of automobile brake steam chamber separator |
| CN203004125U (en) * | 2012-12-26 | 2013-06-19 | 重庆中彦仪表配件有限责任公司 | Gas meter diaphragm vulcanizing mold |
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|---|---|
| CN107553949A (en) | 2018-01-09 |
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