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Rotary rubber core rubber formula, production mold and production method thereof

A formula and rubber core technology, which is applied in the field of rubber products, can solve the problems that safety and rubber compactness cannot be satisfied at the same time, and achieve the effects of ensuring process safety, reducing material costs, and avoiding the process of adding rubber

Pending Publication Date: 2019-08-16
四川新为橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a rubber formula for rotating rubber cores to produce rubber compounds with excellent wear resistance and fluidity in order to solve the technical defects that the prior art process safety and rubber compactness cannot be satisfied at the same time. The rubber material is used to apply to the actual working conditions of the sealing end and the supporting end respectively;

Method used

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  • Rotary rubber core rubber formula, production mold and production method thereof
  • Rotary rubber core rubber formula, production mold and production method thereof
  • Rotary rubber core rubber formula, production mold and production method thereof

Examples

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Effect test

Embodiment 1

[0047] A rubber formula for a rotating rubber core provided by a preferred embodiment of the present invention includes a formula of rubber material A for the supporting end 8 and a formula of rubber material B for the sealing end 7, and the parts by weight of each component are as follows:

[0048] Compound A formula: 100 parts of raw rubber; 50 parts of carbon black; 10 parts of white carbon black; 2 parts of coupling agent; 1 part of dispersant; 13 parts of auxiliary additives; 3 parts of accelerator

[0049] Compound B formula: 100 parts of raw rubber; 60 parts of carbon black; 20 parts of white carbon black; 4 parts of coupling agent; 2 parts of dispersant; 13 parts of auxiliary additives; 3 parts of accelerator.

[0050] The auxiliary additives include: 5 parts of zinc oxide; 1 part of stearic acid; 2 parts of anti-aging agent; 2 parts of paraffin; 3 parts of accelerator.

[0051] The accelerator comprises: 1 part of accelerator sulfur; 1 part of accelerator TMTD; 1 part...

Embodiment 2

[0080] A rubber formula for a rotating rubber core provided by a preferred embodiment of the present invention includes a formula of rubber material A for the supporting end 8 and a formula of rubber material B for the sealing end 7, and the parts by weight of each component are as follows:

[0081] Compound A formula: 95 parts of raw rubber; 45 parts of carbon black; 5 parts of white carbon black; 1 part of coupling agent; 0.5 parts of dispersant; 10 parts of auxiliary additives; 6 parts of accelerator

[0082] Compound B formula: 95 parts of raw rubber; 55 parts of carbon black; 15 parts of white carbon black; 3 parts of coupling agent; 1.5 parts of dispersant; 10 parts of auxiliary additives; 6 parts of accelerator.

[0083] The auxiliary additives include: 2 parts of zinc oxide; 1 part of stearic acid; 2 parts of anti-aging agent; 2 parts of paraffin wax.

[0084] The accelerator comprises: 2 parts of accelerator sulfur; 2 parts of accelerator TMTD; 2 parts of accelerator ...

Embodiment 3

[0102] A rubber formula for a rotating rubber core provided by a preferred embodiment of the present invention includes a formula of rubber material A for the supporting end 8 and a formula of rubber material B for the sealing end 7, and the parts by weight of each component are as follows:

[0103] Sizing material A formula: 105 parts of raw rubber; 55 parts of carbon black; 15 parts of white carbon black; 3 parts of coupling agent; 1.5 parts of dispersant; 16 parts of auxiliary additives; 9 parts of accelerator;

[0104] Compound B formula: 105 parts of raw rubber; 65 parts of carbon black; 25 parts of white carbon black; 5 parts of coupling agent; 2.5 parts of dispersant; 16 parts of auxiliary additives; 9 parts of accelerator.

[0105] The auxiliary additives include by weight fraction: 8 parts of zinc oxide; 1 part of stearic acid; 2 parts of anti-aging agent; 2 parts of paraffin.

[0106] The accelerator comprises: 3 parts of accelerator sulfur; 3 parts of accelerator TM...

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Abstract

The invention discloses a rotary rubber core rubber formula, a production mold and a manufacturing method thereof, and relates to the technical field of rubber products. The rotary rubber core rubberformula comprises a rubber material A formula for a supporting end and a rubber material B formula for a sealing end. Through the formula, a rubber material B with strong abrasion resistance and a rubber material A with good fluidity can be respectively produced, and are respectively used for manufacturing the supporting end and the sealing end. A mold comprises a sealing end mold and an integralforming mold which are respectively used for manufacturing the sealing end and the supporting end. The rotary rubber core rubber formula ensures the compactness of the product while ensuring the safety. At the same time, the rotary rubber core rubber formula only uses the rubber material with strong abrasion resistance at the sealing end, thus reducing the material cost of the whole rotating rubber core and having higher economic value.

Description

technical field [0001] The invention belongs to the technical field of rubber products, and in particular relates to a rubber formula of a rotary rubber core, a production mold and a manufacturing method thereof. Background technique [0002] In oil and gas well control seals, rubber products account for a large proportion. The rotary rubber core is also called self-sealing rubber core because the inner diameter is smaller than the outer diameter of the drilling tool. In actual working conditions, drilling tools up and down wear the lower part of the rotating rubber core, that is, the sealing end. Therefore, in addition to oil resistance, the rubber material of the sealing surface also needs to have strong wear resistance. [0003] In the rubber vulcanization process, there is a commonly used rubber adding process. This process is the safest. Put the glue directly into the mold cavity, and the rubber material will start to vulcanize after the mold is closed. This method is...

Claims

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Application Information

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IPC IPC(8): C08L21/00C08L91/06C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06B29B7/00B29C43/02B29C43/36B29C45/26B29C35/02
CPCC08L21/00B29B7/002B29C43/02B29C43/36B29C45/26B29C35/02C08K2003/2296C08L91/06C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06
Inventor 周永国吴向东冯旭海王东陈涛赵继刚冯世强茶拉艾斯哈尔·吐尔温梁玉磊何飞刘啸宇
Owner 四川新为橡塑有限公司
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