QCT241-97標(biāo)準(zhǔn)（英文版）

QC/T 241-1997PrefaceThis standard stipulates the test methods of the vehicle wheels.This standard has adopted unequally 12.4 of JASO C 608-75 The light alloy spoke style wheels on vehicles), the applied scope should be extended to the auto wheels that equipped with tires without internal tires.This standard has been stipulated to provide the effective control and inspection basis for the wheel products.This standard is presented by Auto Industry Branch of the Mechanical Industry Department.This standard is under the jurisdiction of Auto Standardization Technical Committed of China.This standard is drafted by Nanjing Iveco Auto Co., Ltd.The major draftsman: Zhu XiaoAuto Industry Standards of the P.R.C. QC/T 241-1997Test Method for the Sealing Characteristics of Wheels without Internal Tires1 Scope This standard has stipulated the test methods for the wheels equipped with tires with no internal tires.This standard is applicable for the wheels equipped with tires with no internal tires.2 Samples for TestThe wheels for test should be the new wheels untested or unused, and should be without coating.3 Test EquipmentThe test equipment is a device to check the sealing characteristics of the wheels by compressed air.The schematic diagram is as follows:Sealing gasketWheelRadiatorPress plateWaterEntrance for compressed air 4 Test Methods4.1 Test aerated pressureDuring the test, the compressed air pressure should be 400kPa.4.2 Test DurationAfter aeration, the pressure should remain .4.3 Wheels testedSealing off the valve of the tire and the wheels should be uncoated.4.4 The assembly of the tested wheelsThe two sides of the wheels should be pressed tightly with pressing plates with sealing mats for sealing off the wheels, and then the wheels will be totally soaped in the water tank filled with water.Standard 1997-11-12 Approved by Mechanical Industry Department of P.R.C. Implemented July,1st 1998 QC/T 241 1997 4.5 Test After finishing 4.4, the test should be done in according to 4.1 and 4.25. Results EvaluationWithin 30s after the aeration has reached the