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Ethylene propylene diene rubber composition for air outlet pipe of intercooler and preparation method thereof

A technology of EPDM rubber and composition, applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of rising automobile manufacturing costs and excess performance, and achieve suitable performance, low price, and good heat aging resistance. Effect

Inactive Publication Date: 2012-08-08
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the normal working temperature of the intercooler outlet pipeline of general commercial vehicles is below 100°C, and the silicone rubber that can withstand the working temperature above 200°C is used to make the intercooler outlet hose, which obviously has excess performance, and the price of silicone rubber is obvious. Higher than ordinary rubber, causing the cost of automobile manufacturing to rise

Method used

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  • Ethylene propylene diene rubber composition for air outlet pipe of intercooler and preparation method thereof
  • Ethylene propylene diene rubber composition for air outlet pipe of intercooler and preparation method thereof
  • Ethylene propylene diene rubber composition for air outlet pipe of intercooler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] To produce an intercooler outlet hose with a size of 41±0.5mm×51±0.5mm×630±3mm, the steps are as follows:

[0029] 1. Tube embryo manufacturing process

[0030] A pin-barrel cold-feed extruder with an aspect ratio of 11 was selected.

[0031] Extrusion inner rubber: head temperature: 60°C, extrusion section temperature: 50°C, plasticizing section temperature: 50°C, feeding section temperature: 50°C.

[0032] The reinforcement layer is made of aramid thread and has a knitted structure.

[0033] Extrusion cover: head temperature: 60°C, extrusion section temperature: 50°C, plasticizing section temperature: 50°C, feeding section temperature: 50°C. And choose a 41mm needle and a 48mm mouth shape to ensure the size of the hose.

[0034] 2. Cooling

[0035] After the rubber is extruded from the machine head, the temperature is high, and it is cooled. The temperature of the circulating water is controlled at 15±5°C, cooled and shaped, the cutting length is 230mm, and...

Embodiment 2

[0045] To produce an intercooler outlet hose with a size of 50±0.5mm×60±0.5mm×520±3mm, the steps are as follows:

[0046] 1. Tube embryo manufacturing process

[0047] A pin-barrel cold-feed extruder with a length-to-diameter ratio of 12 was selected.

[0048] Extrusion inner rubber: head temperature: 80°C, extrusion section temperature: 70°C, plasticizing section temperature: 70°C, feeding section temperature: 60°C.

[0049] The reinforcement layer is made of aramid thread and has a knitted structure.

[0050] Extrusion cover: head temperature: 80°C, extrusion section temperature: 70°C, plasticizing section temperature: 70°C, feeding section temperature: 60°C. And choose a 51mm needle and a 57mm mouth shape to ensure the size of the hose.

[0051] 2. Cooling

[0052] After the rubber is extruded from the machine head, the temperature is high, and it is cooled. The temperature of the circulating water is controlled at 15±5°C, cooled and shaped, the cutting length is...

Embodiment 3

0

[0064] To produce an intercooler outlet hose with a size of 48±0.5mm×57±0.5mm×745±3mm, the steps are as follows:

[0065] 1. Tube embryo manufacturing process

[0066] A pin-barrel cold-feed extruder with an aspect ratio of 15 was selected.

[0067] Extrusion inner rubber: head temperature: 70°C, extrusion section temperature: 60°C, plasticizing section temperature: 60°C, feeding section temperature: 55°C.

[0068] The reinforcement layer is made of aramid thread and has a knitted structure.

[0069]Extrusion cover: head temperature: 70°C, extrusion section temperature: 60°C, plasticizing section temperature: 60°C, feeding section temperature: 55°C. And choose a 49mm needle and a 55mm mouth shape to ensure the size of the hose.

[0070] 2. Cooling

[0071] After the rubber is extruded from the machine head, the temperature is high, and it is cooled. The temperature of the circulating water is controlled at 15±5°C, cooled and shaped, the cutting length is 745...

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Abstract

The invention relates to an ethylene propylene diene rubber for an air outlet pipe of an intercooler. The rubber composition consists of ethylene propylene diene rubber, zinc oxide, polyethylene glycol, an anti-ageing agent RD, coumarone, carbon black, paraffin oil, an accelerating agent and sulfur. A preparation method of the rubber composition comprises the following steps of: selecting a rubber extruder, controlling the length-diameter ratio of a screw rod at 11-15, and controlling the temperature at each stage of the extruder, wherein the temperature of a handpiece is 60-80 DEG C, the temperature of an extruding section is 50-70 DEG C, the temperature of a plasticizing section is 50-70 DEG C, and the temperature of a feeding section is 50-60 DEG C; controlling the temperature of circulating water at 15+ / -5 DEG C, cooling and sizing a rubber pipe, cutting length, and standing for later use; and sleeving a semi-finished product on a mandrel of a fixed specification, and entering a steam vulcanizing tank for vulcanizing at the vulcanizing temperature of 150-170 DEG C for 15-40 minutes. An air outlet rubber pipe of the intercooler processed by using gross rubber produced with the method has the advantages of low price, appropriate performance, simple production process, high efficiency, excellent ageing resistance and high ozone resistance, and better meets the current use requirements.

Description

technical field [0001] The invention relates to the technical field of rubber hoses, in particular to an ethylene-propylene-diene monomer rubber composition used for an air outlet pipe of an intercooler and a preparation method thereof. Background technique [0002] The air intake and air intake intercooling system (air-to-air cooling) of an automobile diesel engine is generally composed of air filters, intercoolers and connecting pipes and other components. The gas pipeline must be connected with a rubber tube and a metal tube. With the good flexibility of the rubber, the layout and assembly of the pipeline can be facilitated, and the ability of the gas pipeline system to buffer vibration can be improved. After the fresh air is filtered by the air filter and pressurized by the supercharger, the gas temperature can be as high as 200°C, even above 230°C, and after being cooled by the intercooler, it will drop below 100°C, thereby increasing the density of the fresh air. The ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K3/04C08K3/06B29C47/92B29C35/02F16L11/04B29C48/92
CPCB29C48/625B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 张洪起张桂林
Owner TIANJIN PENGYI GRP CO LTD
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