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Manufacturing method of sealing ring used for fuel-tank caps

A manufacturing process and sealing ring technology, which is applied in the field of manufacturing process of sealing rings for fuel caps, can solve the problems such as failure of the rubber ring to reach predetermined technical indicators, cracks and the like

Active Publication Date: 2018-06-01
重庆江华橡塑制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are a large number of sealing rings in the market that can meet the above standards, but in extreme weather, such as in some parts of northern my country, it can reach minus 30 degrees in winter. In this environment, most of the rubber rings in the market cannot meet the predetermined technical indicators. Cracking phenomenon

Method used

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  • Manufacturing method of sealing ring used for fuel-tank caps

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 of the present invention: a kind of manufacturing process of oil filler cap seal ring, comprises the following steps:

[0033] First, weigh the formula raw materials according to the following parts by weight, acrylate rubber 90, fluorine rubber 10, high wear-resistant carbon black 25-35, fast extruded carbon black 15-25, plasticizer 8-11, anti-scorch agent 0.1-25 0.5, paraffin 0.8-1.5, anti-aging agent 4.5-5.5, sulfur 0.3-1, potassium stearate 0.5-0.7, sodium stearate 3.5-4. The type of the anti-aging agent is MC445 and grade 1 RD, and the weight part of the MC445 type antioxidant is 2.4-3.6. The weight part of the first-grade RD type antioxidant is 0.9-1.1.

[0034] The model of acrylate rubber in the present embodiment is AR-100, the model of fluorine rubber is DS2602, the model of high wear-resistant carbon black is N330, the model of fast extrusion carbon black is N550, and the model of plasticizer is THIOKOL TP- 95. The model of the anti-scorch agent...

Embodiment 2

[0040] Embodiment 2: a kind of manufacturing process of oil filler cap sealing ring, comprises the following steps:

[0041] First, weigh the formula raw materials according to the following parts by weight, acrylate rubber 89.8, fluorine rubber 9.8, high wear-resistant carbon black 24.8, fast extruded carbon black 14.8, plasticizer 7.8, anti-scorch agent 0.2, paraffin wax 0.7, anti-aging agent 4.4 , sulfur 0.2, potassium stearate 0.4, sodium stearate 3.4. The type of the anti-aging agent is MC445 and grade 1 RD, and the weight part of the MC445 type antioxidant is 2.4-3.6. The weight part of the first-grade RD type antioxidant is 0.9-1.1.

[0042] The model of acrylate rubber in the present embodiment is AR-100, the model of fluorine rubber is DS2602, the model of high wear-resistant carbon black is N330, the model of fast extrusion carbon black is N550, and the model of plasticizer is THIOKOL TP- 95. The model of the anti-scorch agent is CTP, the model of paraffin is OK1900...

Embodiment 3

[0048] Embodiment 3: a kind of manufacturing process of sealing ring for refueling cap, comprises the following steps:

[0049] First, weigh the formula raw materials according to the following parts by weight, acrylate rubber 90.2, fluororubber 10.2, high wear-resistant carbon black 35.2, fast extruded carbon black 25.2, plasticizer 11.2, anti-scorch agent 0.6, paraffin wax 1.6, anti-aging agent 5.6 , sulfur 0.9, potassium stearate 0.6, sodium stearate 4.1. The type of the anti-aging agent is MC445 and grade 1 RD, and the weight part of the MC445 type antioxidant is 2.4-3.6. The weight part of the first-grade RD type antioxidant is 0.9-1.1.

[0050] The model of acrylate rubber in the present embodiment is AR-100, the model of fluorine rubber is DS2602, the model of high wear-resistant carbon black is N330, the model of fast extrusion carbon black is N550, and the model of plasticizer is THIOKOL TP- 95. The model of the anti-scorch agent is CTP, the model of paraffin is OK19...

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Abstract

The invention discloses a manufacturing method of a sealing ring used for fuel-tank caps. The manufacturing method comprises following steps: S100, internal mixing, wherein formula raw materials are subjected to internal mixing using an internal mixer; S200, open milling, wherein a product obtained in step S100 is subjected to open milling; S300, sulfuration; and S400, product finalized production. Compared with the prior art, the manufacturing method possesses following advantages: the obtained sealing ring is capable of satisfying related standers disclosed in SAE J200-2005<rubber material classification system>, and HG / T2196-2004< standard classification system for rubber products in automotive application>, the volume change rate in 150 DEG C*70h oil resistance test is 5% or lower, andcomprehensive technological indexes such as hot air aging and compression permanent deformation are achieved.

Description

technical field [0001] The invention relates to a manufacturing process of a sealing ring for a fuel cap, and belongs to the technical field of rubber manufacturing processes. Background technique [0002] The vehicle fuel cap plays a role of sealing to prevent the oil in the fuel tank from flowing out. The sealing effect of the fuel cap mainly depends on the sealing ring, which is located in the limit groove of the fuel cap, and the deformation of the sealing ring improves its fit with the fuel cap and the fuel tank, thereby ensuring the sealing effect. Relevant standards have been formulated for the sealing ring in the fuel cap, such as: SAE J200-2005 "Rubber Material Classification System", HG / T2196-2004 "Standard Materials of the Chemical Industry of the People's Republic of China (Automobile Rubber Material Classification System)". S A E J 200 (automotive rubber technical specification committee has separate jurisdiction) is jointly developed by the Society of Automoti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08L27/12C08L91/06C08K13/02C08K3/04C08K5/098C08K3/06B29C35/02B29B7/00
CPCB29B7/002B29C35/02C08K2201/014C08L33/08C08L2205/03C08L27/12C08L91/06C08K13/02C08K3/04C08K5/098C08K3/06
Inventor 黄太金
Owner 重庆江华橡塑制造有限公司
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