Preparation method of inner-fluorine outer-silicon car rubber tube

A technology of outer silicon and rubber tube, applied in the direction of tubular articles, other household appliances, household appliances, etc., can solve the problems of lack of oil and gas penetration resistance, low cost, etc., to achieve excellent high temperature resistance to oil and gas penetration performance, prevent aging damage, The effect of excellent high and low temperature resistance

Active Publication Date: 2017-06-20
北京腾龙天元橡塑有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Since there are still a lot of oil and gas remaining, the oil and gas must be closed in the system to reduce the volatilization of oil and gas. However, the rubber hose of the original automobile air intake system does not have the performance of oil and gas penetration resistance at high temperatures. It is necessary to find a new type of high performance but lower cost. The material replaces the original AEM rubber hose as the rubber part of the air intake system

Method used

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  • Preparation method of inner-fluorine outer-silicon car rubber tube
  • Preparation method of inner-fluorine outer-silicon car rubber tube
  • Preparation method of inner-fluorine outer-silicon car rubber tube

Examples

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Effect test

Embodiment 1

[0036] Embodiment 1: as figure 1 Shown, a kind of preparation method of inner fluorine outer silicon car rubber hose comprises the following steps;

[0037] Step 1. Select raw material steps:

[0038] 1. Raw materials for silica gel mixing:

[0039] Silicone rubber (brand: G869), defrosting agent (F-10), special adhesive (oligomer of amino-containing alkoxysilane and vinyl-containing alkoxysilane), iron red (as a physical Endothermic agent), vulcanizing agent (DBPH), a small amount of meteorological silica;

[0040] 2. Raw materials for polyacrylate rubber VAMAC mixing:

[0041] Polyacrylate rubber VAMAC (HT), carbon black (N550), light MgO, release agent, titanium dioxide, Ca(OH) 2 , polyethylene wax, stearic acid, sodium stearate, potassium stearate, cytidine triphosphate CTP;

[0042] 3. Raw materials for fluororubber FKM mixing:

[0043] Fluorine rubber FKM (9002), carbon black (N990), light MgO, stearic acid, vulcanizing agent (DBPH);

[0044] 4. Materials for the bl...

Embodiment 2

[0070] A preparation method for a car rubber hose with inner fluorine and outer silicon, a turbocharger-intercooler air inlet and outlet hose, the lining material is made of AEM-fluororubber FKM blended modified material instead of pure fluororubber FKM material, to achieve improved Performance, while reducing the dual requirements of cost.

[0071] The invention adopts the method of blending modification to carry out blending modification of AEM rubber and fluorine rubber FKM rubber to obtain a new material with high performance and low cost.

[0072] The invention realizes co-vulcanization of AEM and fluororubber FKM, and achieves certain mechanical strength, weather resistance and good process performance, thereby making up for the shortcomings of simply using AEM and fluororubber FKM.

[0073] The invention solves the bonding problem of the inner liner layer of the mixed rubber and the silicone rubber layer. Due to the different properties of the interface, the bonding of ...

Embodiment 3

[0084] Embodiment 3: as figure 1 as shown,

[0085] A method for preparing a car rubber hose with inner fluorine and outer silicon, comprising the following steps;

[0086] The silica gel mixing process steps are as follows:

[0087] The speed ratio of the rollers of the double-roll mill is 1.2 to 1.4, and the fast roller is behind. The higher speed ratio leads to faster mixing, and the lower speed ratio can make the film smooth.

[0088] The roller must have cooling water, and the mixing temperature should be below 40°C to prevent scorching or volatilization loss of vulcanizing agent.

[0089] When mixing, the roller distance is small (1-5mm) at the beginning, and then gradually enlarged.

[0090] Step 1. Add the materials weighed according to the formula ratio at one time, the feeding and operation sequence: raw rubber (covering roll) → defrosting agent → heat-resistant additive (colorant) → thin pass 5 times → blanking, re-milling → vulcanizing agent → thin pass → park ...

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Abstract

The invention provides a preparation method of an inner-fluorine outer-silicon car rubber tube and belongs to the technical field of automobile accessory fabrication. Various types of materials required by various silicone rubber formulas are weighed in proportion of the formulas, silicone rubber and various accessories except a vulcanizing agent are fed into equipment for mixed smelting, the silicone rubber obtained after mixed smelting stands still for 24 hours, then the vulcanizing agent is added for mixed smelting again, and a piece of the rubber tube is obtained through rolling after mixed smelting is performed again; various types of raw materials required by various fluorine rubber formulas are weighed in proportion of the formulas and subjected to uniform mixed smelting on a rubber mixing mill for standby us; two types of mixed smelting glue stand still for 24 hours and then are fed into the rubber mixing mill for mixed smelting, and after the mixture is uniform, the piece of rubber tube is rolled; a die of a relative product is taken and used; and a formed product is placed into a vulcanization tank for one-segment vulcanization, demoulding is performed to detach an outer-layer film for second-segment vulcanization after the above step is completed, after whole forming is completed, a cutting head is cleaned, and the rubber tube can be packaged and put in storage after being inspected to be qualified.

Description

technical field [0001] The invention relates to a method for preparing a car rubber hose with inner fluorine and outer silicon, and belongs to the technical field of automobile supplies production. Background technique [0002] With the progress of society and the development of mankind, people have higher and higher requirements on energy demand and environmental protection. In the automobile industry, in order to improve energy efficiency and automobile emission standards, people are constantly pursuing new technologies, among which the application of turbocharger technology is the mainstream trend of automobile development. [0003] Turbocharger technology is to use the exhaust gas to drive the turbocharger to compress the air, increase the intake air volume of the engine, increase the oxygen content, and make the fuel burn more fully. The turbocharger makes the air temperature rise rapidly, and the maximum temperature can reach about 230°C. At the same time, in order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D23/00
CPCB29D23/001
Inventor 李警矫滨田矫水田韩婷李丹杨凯于晓国高忠军文基林李敏
Owner 北京腾龙天元橡塑有限公司
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