KR100280039B1 - Surface treatment method of rolling mill roll in tire production - Google Patents

Surface treatment method of rolling mill roll in tire production Download PDF

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KR100280039B1
KR100280039B1 KR1019970063566A KR19970063566A KR100280039B1 KR 100280039 B1 KR100280039 B1 KR 100280039B1 KR 1019970063566 A KR1019970063566 A KR 1019970063566A KR 19970063566 A KR19970063566 A KR 19970063566A KR 100280039 B1 KR100280039 B1 KR 100280039B1
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roll
rubber
surface treatment
rolling mill
rolling
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KR1019970063566A
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Korean (ko)
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KR19990042676A (en
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임원우
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신형인
금호산업주식회사
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타이어 제조시 압연공정에서 타이어코드에 고무를 톱핑함에 있어서 압연기롤에 배합고무가 부착되는 현상이 발생하여 작업을 일시 중단하고 이를 제거하므로 인하여 작업시간이 지연되고 압연이 어려운 문제점이 있다. 이를 방지하기 위하여 종래에는 배합고무의 조성을 변경하거나 롤의 온도 및 속도를 조절하는 방법을 채택했으나 근본적인 문제점을 해결할 수 없었다.When the tire is manufactured in the rolling process, the rubber is mixed with the rolling mill in the top of the tire cord in the rolling process, so that the work is suspended and removed. Therefore, the working time is delayed and the rolling is difficult. In order to prevent this, conventionally, a method of changing the composition of the rubber compound or adjusting the temperature and speed of the roll was adopted, but the fundamental problem could not be solved.

본 발명은 롤의 표면에 테프롤을 0.05 - 10.mm 로 5Kg/㎠의 압력으로 코팅하여 압연공정을 실시했던 바, 롤의 표면에 배합고무가 부착되는 현상을 획기적으로 제거한 타이어 제조시 압연기롤의 표면처리 방법에 관한 발명이다.According to the present invention, a rolling process was carried out by coating a tefrol at a pressure of 5 Kg / cm 2 at a pressure of 0.05-10.mm on the surface of the roll. The invention relates to a surface treatment method.

Description

타이어 제조시 압연기롤의 표면처리방법Surface treatment method of rolling mill roll in tire production

타이어는 여러 단계의 제조공정을 거쳐 완제품이 생산된다. 주요 제조공정으로서 압연공정, 재단공정, 성형공정, 가류공정이 있다. 이중에서 압연공정은 원재료인 코드에 고무(8)를 톱핑하는 공정으로 고무를 압연기에서 2 번롤(3)과 3번 롤(4) 사이로 코드가 지나가고 1번 롤(2), 2번 롤(3) 및 3번 롤(4), 4번 롤(5) 사이로 투입된 고무(8)에 의해서 코드는 톱핑된다. 이때의 롤의 온도는 약 70° 정도이고 롤과 롤사이로 고무가 투입될 때 롤 표면에 고무가 부착되는 현상은 압연작업에 위한 방안으로 롤의 온도 및 속도를 조정하거나 고무물성이나 배합조성을 변화시켜 해결하곤 한다. 그러나, 사용되는 고무종류가 많은 경우 각 고무마다 이와 같은 조정작업은 많은 경험이 필요로 하고 시간적 손실이 많다. 또한 작업중 고무가 롤에 부착되어 2번 롤(3)과 3번 롤(4)으로 균일하게 투입되지 않으면 압연물의 균일한 품질을 얻을 수 없다.Tires go through several stages of manufacturing to produce finished products. Main manufacturing processes include rolling process, cutting process, forming process and vulcanization process. Among them, the rolling process is a process in which the rubber (8) is topped on the cord, which is a raw material, and the rubber passes through the rolling mill between the 2nd roll (3) and the 3rd roll (4). ) And the cord is topped by the rubber 8 introduced between the third roll 4 and the fourth roll 5. At this time, the temperature of the roll is about 70 °, and the rubber sticks to the surface of the roll when the rubber is inserted between the rolls. This is a method for rolling work, by adjusting the temperature and speed of the rolls or by changing the rubber properties or composition. Used to solve. However, if there are many kinds of rubbers used, such adjustment work for each rubber requires a lot of experience and time loss. In addition, if the rubber adheres to the roll during operation and is not uniformly introduced into the second roll 3 and the third roll 4, a uniform quality of the rolled product cannot be obtained.

본 발명은 압연기 롤에 표면처리를 함으로써 사용하는 고무의 배합물 조성이나 롤의 온도 및 속도를 변화시키지 않고 고무(9)가 롤에 부착되지 않으면서 2번 롤(3), 3번 롤(4)에 균일하게 투입될 수 있도록 하는 것이다. 롤의 표면처리는 표면마찰 계수가 낮고 극성이 아주 낮은 테프론(TEFLON)(7)으로 한다.The present invention provides the roll 2, roll 3 and roll 4 without the rubber 9 being attached to the roll without changing the composition of the rubber used or the temperature and speed of the roll by applying the surface treatment to the rolling mill roll. It is to be able to uniformly input to. The surface treatment of the roll is made of TEFLON 7 having a low surface friction coefficient and a very low polarity.

이 또한 이 테프론은 내열성이 우수하여 압연작업의 온도범위에서는 물성변화에 크게 문제가 되지 않는 장점을 갖고 있다. 테프론은 표면마찰계수도 낮고 화학적 극성이 극히 낮기 때문에 상대적으로 택(TACK)이 높은 고무를 투입하더라도 고무가 코드에 균일하게 톱핑되게하여 압연물의 품질안정 및 향상에 기여하고 배합고무가 롤에 달라붙음으로 말미암아 작업을 일시 정지해야 하는 공정상의 손실을 줄일 수 있어 생산성 안정에도 기여를 한다.In addition, this Teflon has excellent heat resistance and has the advantage of not significantly affecting the change of physical properties in the temperature range of the rolling operation. Since Teflon has a low surface friction coefficient and extremely low chemical polarity, even if a rubber with a relatively high tack is added, the rubber is uniformly topped on the cord, contributing to the stability and improvement of the quality of the rolled material, and the compound rubber sticks to the roll. This reduces the process losses of having to pause work, which contributes to productivity stability.

제1도는 압연기롤의 측면구성도.1 is a side configuration diagram of the rolling mill roll.

제2도는 180°박피시편의 측단면도.2 is a side cross-sectional view of a 180 ° thin specimen.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 코드지 2 : 1번 롤1: code paper 2: roll 1

3 : 2번 롤 4 : 3번 롤3: 2nd roll 4: 3rd roll

5 : 4번 롤 6 : 압연지5: 4 rolls 6: rolled paper

7 : 테프론 8 : 고무7: teflon 8: rubber

9 : 금속판9: metal plate

타이어 제조공정의 압연공정에 있어서 코드에 고무를 톱핑할 때 롤 표면에 고무가 부착되는 현상을 방지하기 위하여 롤의 표면에 테프론으로 코팅하여 롤에 배합고무가 부착되는 현상을 방지한다.In the rolling process of the tire manufacturing process, when the rubber is topped to the cord, the surface of the roll is coated with Teflon to prevent the rubber from adhering to the roll surface to prevent the compound rubber from adhering to the roll.

테프론 처리 전,후의 고무부착성을 평가하기 위하여 180°박리시험과 택(Tack) 시험을 실시하였다. 180°박리시험은 길이 15cm, 폭 1인치의 무처리 금속판, 테프론 처리 금속판에 고무 A를 압력 5kgf/㎠으로 압착하여 시편을 제조하였다.In order to evaluate the adhesion of rubber before and after Teflon treatment, 180 ° peeling test and tack test were conducted. In the 180 ° peeling test, rubber A was pressed at a pressure of 5 kgf / cm 2 to a 15 cm long, 1 inch wide untreated metal plate and a Teflon treated metal plate to prepare a specimen.

박리시험 결과, 무처리 금속판의 경우보다 테프론처리 금속판의 경우가 박리강도가 약 70%정도 낮아 고무가 금속판으로부터 쉽게 박리되고 있음을 실험적으로 증명되었다.As a result of the peel test, the Teflon-treated metal plate was about 70% lower than the untreated metal plate, and it was experimentally proved that the rubber was easily peeled off from the metal plate.

또한, 초기 점착성을 평가하는 택 시험에 있어서도 테프론처리 금속판의 경우가 무처리 금속판 경우보다 약 60% 정도 크게 개선됨을 보여 준다. 따라서 이와 같이 테프론을 압연기의 롤에 코팅하여 사용하면 고무가 롤에 부착되어 롤으로부터 잘 분리되지 않는 문제점을 크게 개선할 수 있다. 그렇게 함으로써 압연 작업중 고무가 롤과 롤 사이를 균일하게 투입되고 또한 코드지에 톱핑되므로 품질이 균일한 압연지를 제조할 수 있다. 이것은 압연 반제품의 품질을 안정시키고 완제품 타이어의 품질 안정에도 기여한다.In addition, the tack test for evaluating the initial tack shows that the Teflon-treated metal plate is improved by about 60% more than the untreated metal plate. Therefore, by using the Teflon coated on the roll of the rolling mill in this way it can greatly improve the problem that the rubber is attached to the roll is not separated from the roll. By doing so, during the rolling operation, the rubber is uniformly fed between the rolls and topped on the cord paper, so that the rolled paper with uniform quality can be produced. This stabilizes the quality of the rolled semifinished product and also contributes to the quality of the finished tire.

다음의 실시예 및 비교예를 통하여 본 발명을 좀더 상세히 설명한다. 그러나, 본 발명이 이들 실시예에 국한되는 것은 아니다.The present invention will be described in more detail with reference to the following examples and comparative examples. However, the present invention is not limited to these examples.

[실시예 1]Example 1

금속판 롤 위에 5kgf/㎠ 압력으로 0.05mm 두께의 테프론을 압착, 코팅하여 180°박리시험과 택(tack) 시험을 실시하고 그 결과를 표 1 에 나타내었다.A 180 ° peeling test and a tack test were carried out by pressing and coating 0.05 mm thick Teflon on a metal sheet roll at a pressure of 5 kgf / cm 2, and the results are shown in Table 1 below.

[실시예 2]Example 2

실시예 1과 같이하고 1.0mm 두께에 테이프롤을 압착, 코팅하여 180°박리시험과 택시험을 실시하고 그 결과를 표 1 에 나타내었다.In the same manner as in Example 1, the tape roll was pressed and coated to a thickness of 1.0 mm to perform a 180 ° peeling test and a tack test, and the results are shown in Table 1.

[비교예][Comparative Example]

표면처리를 하지 않고 실시예 1과 같이 시험하여 그 결과를 표 1 에 나타내었다.It tested like Example 1 without surface treatment, and the result is shown in Table 1.

Figure kpo00001
Figure kpo00001

본 발명에에 의한 처리방법에 의하면, 테프론을 금속판 롤(9)에 코팅하므로서 압연공정에서 배합고무가 롤에 부착되는 현상을 방지하여 생산과정에서 가동중지 현상을 방지할 수 있고 로스가 감소하여 획기적인 압연공정의 생산성을 증가시킬 수 있다.According to the treatment method according to the present invention, by coating the teflon on the metal sheet roll (9), it is possible to prevent the compounding rubber from adhering to the roll in the rolling process to prevent the operation stop during the production process, the loss is reduced and breakthrough The productivity of the rolling process can be increased.

Claims (1)

타이어 제조시 압연공정에서 롤에 배합고무가 부착되는 현상을 방지함에 있어서, 롤의 표면에 테프론을 0.05~1.0mm 두께로 코팅하는 것을 특징으로 하는 압연기 롤의 표면처리방법.A method of surface treatment of a rolling mill roll, characterized in that the teflon is coated to a thickness of 0.05 to 1.0 mm on the surface of the roll in preventing the compound rubber from adhering to the roll in the rolling process during tire production.
KR1019970063566A 1997-11-27 1997-11-27 Surface treatment method of rolling mill roll in tire production KR100280039B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960021174A (en) * 1994-12-05 1996-07-18 전정수 Coating layer forming method and apparatus of coating roller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960021174A (en) * 1994-12-05 1996-07-18 전정수 Coating layer forming method and apparatus of coating roller

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