QC/T 1011-2023 English PDF

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QC/T 1011-2023: (Automobile Clutch Master Cylinder)
Status: Valid

QC/T 1011: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
QC/T 1011-2023	449	Add to Cart	4 days	(Automobile Clutch Master Cylinder)	Valid
QC/T 1011-2015	110	Add to Cart	Auto, < 3 mins	Technical requirements and bench test methods for hydraulic air-assistant system master cylinder of clutch	Obsolete

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Basic data

Standard ID: QC/T 1011-2023 (QC/T1011-2023)
Description (Translated English): (Automobile Clutch Master Cylinder)
Sector / Industry: Automobile & Vehicle Industry Standard (Recommended)
Classification of Chinese Standard: T21
Classification of International Standard: 43.040.50
Word Count Estimation: 22,293
Date of Issue: 2023-04-21
Date of Implementation: 2023-11-01
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the terms and definitions of automobile clutch master cylinder, and specifies the technical requirements and test methods of the master cylinder. This standard applies to automobile clutch master cylinder.

QC/T 1011-2015: Technical requirements and bench test methods for hydraulic air-assistant system master cylinder of clutch

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical requirements and bench test methods for hydraulic air-assistant system master cylinder of clutch ICS 43.040.50 T 21 QC People 's Republic of China Automotive Industry Standard Clutch hydraulic gas booster system master cylinder Technical requirements and bench test methods Technical requirements and bench test methods for Hydraulic air-assistant system master cylinder of clutch 201 5-07-14 released 2016-01-01 Implementation Issued by the Ministry of Industry and Information Technology of the People 's Republic of China Ministry of Industry and Information Technology of the People 's Republic of China announcement Ministry of Industry and Information Technology approved 543 industry standards such as "calcium carbide furnace" (standard number, name, main content and start Implementation date see Annex 1), of which 48 mechanical industry standards, the automotive industry standard 16, the aviation industry standard 15, Pharmaceutical equipment industry standard 13, light industry standard 58, the textile industry standard 86, the chemical industry standard 68, Metallurgical industry standard 16, building materials industry standard 50, petrochemical industry standard 21, nonferrous metals industry standard 2, Nuclear industry standard 3, the communications industry standard 147, is to be announced. Annex. 16 automotive industry standard number, standard name and start date of implementation Ministry of Industry and Information Technology of the People 's Republic of China July 14, annex. 16 automotive industry standard number, standard name and start date of implementation Serial number Standard number Standard name was replaced by standard number Start date Durability test for motorcycles and mopeds Test method 2016-01-01 Catalyst for Metal Carrier Catalytic Converter Determination of content 2016-01-01 Performance requirements and bench test of automotive electric vacuum pump 51 QC/T 1004_2015 Test method 2016-01-01 Gas cylinders for pneumatic and brake devices for automobiles and trailers Performance requirements and test methods QC/T .200-1 995.2016-01-01 Technical requirements for pneumatic control devices for automobiles and trailers GB/T And bench test methods QC/T 35-1992, QC/T 36-1992 2016-01-01 Technical Specification for Air Pressure Protection and Protection Device for Automobile and Trailer Requirements and bench test methods QC/T 37-1992, QC/T 38-1992 2016-01-01 Technical requirements and gantry of hydraulic brake wheel cylinder for automobile experiment method QC/T 77-1993.2016-01-01 Hydraulic Actuator for Automotive Anti - lock Braking System Technical requirements and bench test methods 2016-01-01 Automotive anti - lock braking system Pneumatic electromagnetic regulator Technical requirements and bench test methods 2016-01-01 Evaluation of Filtration Performance of Fuel Filter for Automobile Particle counting method 2016-01-01 Standard for Filters for Fuel Tank Ventilation.2016-01-01 Technical specification for filter for automatic transmission of passenger cars 60 QC/T 1009_2015 2016-01-01 Control technology of clutch hydraulic gas booster system Requirements and bench test methods 2016-01-01 Seeking bench test method 2016-01-01 Cleanliness technology for automotive hydraulic power steering system Requirements and methods of measurement 2016-01-01 Rotary shaft lip seals for steering gears Technical requirements and test methods 2016-01-01 Directory

Foreword

1 Scope

2 normative reference documents

3 terms and definitions

4 technical requirements

5 test method

Foreword

This standard is in accordance with GB/T 1.1-2009 "Standardization of the work of the first part. the standard structure and the preparation of" given Rules drafted. This standard is proposed by the National Automotive Standardization Technical Committee (SAC/TC 114). The main drafting unit of this standard. China Heavy Vehicle Group Co., Ltd., Jiaxing New Zhongnan Auto Parts Co., Ltd., Jiangsu University. This standard participates in the drafting unit. Jinan Automobile Testing Center, Shandong Heavy Industry Group Co., Ltd., Weiboke Automobile Control Department (China) Co., Ltd., Kenuo Kafu commercial vehicle system (Chongqing) Co., Ltd., Zhejiang Institute of Science and Technology, FAW Technology Center, Dongfeng Liuzhou Automobile Co., Ltd., Shaanxi Heavy Vehicle Co., Ltd., Baotou North Benz Heavy Vehicle Co., Ltd., Zhejiang Ji Lee Automobile Research Institute Limited. The main drafters of this standard. Cui Huiping, Xu Jiacheng, Liu Jinhui, Gao Xiang, Wu Hongwei, Zhang Ziqiang, Li Hui. Technical requirements and gantry test method for master cylinder of clutch hydraulic gas assisted system

1 Scope

This standard specifies the clutch hydraulic gas booster system master cylinder (hereinafter referred to as the master pump) technical requirements, test methods. This standard applies to the automotive clutch hydraulic gas booster system master cylinder.

2 normative reference documents

The following documents are indispensable for the application of this standard. Note the date of the reference file, only the date of the date of the note Applicable to this standard. For undated references, the latest edition (including all amendments) applies to this standard. Brake fluid for motor vehicles GB 12981 GB/T 10125 Artificial atmosphere corrosion test Salt spray test

3 terms and definitions

The following terms and definitions apply to this standard. 3.1 Maximum travel maximal travel The distance from the initial position of the piston to the limit position. 3.2 Initial pressure-building travel The piston moves from the initial position to the hydraulic chamber to produce a distance between 0.1 MPa pressure. 3.3 Test temperature Normal temperature. (20 ± 3) ℃; high temperature. (80 ± 3) ℃; low temperature. (- 40 ± 3) ℃.

4 technical requirements

4.1 Basic requirements 4.1.1 The master cylinder shall comply with the requirements of the drawings and technical documents approved by the prescribed procedure. 4.1.2 working medium. brake fluid, should be consistent with the provisions of GB 12981. 4.1.3 Operating temperature. -40 ℃ ~ 80 ℃. 4.2 Performance requirements 4.2.1 return speed. According to the provisions of 5.1 test, the piston must be fully returned to the initial position within 1 s, the piston movement is smooth, no abnormal noise. 4.2.2 Initial pressure stroke. According to the provisions of 5.2 test, the initial pressure stroke maximum of not more than 4 mm. 1 - cylinder; 2 - hydraulic chamber; 3 - compensation hole; 4 - inlet; 5 - dust cover; 6-putter; 7-seal ring; 8-piston; 9-bowl; 10-outlet Figure 1 Example of a master cylinder 4.2.3 Sealability. According to the provisions of 5.3 test, the allowable pressure drop of 30 s should not be greater than the provisions of Table 1. Table 1 Permissible 30 s pressure drop Unit. MPa Test pressure test temperature At room temperature and low temperature 1 0.1 0.4 2 0.2 0.8 4.2.4 Durability of work. According to the provisions of 5.4 test, the total loss of brake fluid during the test less than 0.1 L. After the completion of the test by 5.1,5.2 re-examination, Should meet the requirements of 4.2.1, 4.2.2. At the same time according to the method of 5.3 test, room temperature sealing test results should be consistent with the low in Table 1 The provisions of the temperature. 4.2.5 salt spray corrosion resistance. According to the provisions of 5.5 test, the outer surface of the pump every 100cm. Within the scope of no more than 2mm diameter corrosive, Corrosion area should not exceed 5 cm2.

5 test method

5.1 return speed test The main pump connected to the storage tank, plus brake fluid, exhaust air, push the master plunger so that the piston from the limit position 0 mm ~ 3 mm, The outlet is closed, let the piston free return, record the piston back to the initial position time, observe the piston movement flexibility. 5.2 Initial pressure stroke test The master pump connected to the tank, plus brake fluid, exhaust air. The outlet is closed and the pressure gauge is connected at the outlet. Slow to push Piston, record the hydraulic chamber when the hydraulic pressure of 0.1 MPa when the piston stroke. 5.3 Sealability test The sealing test was carried out in three kinds of temperature conditions at room temperature, high temperature and low temperature respectively. The principle of the test device is shown in Fig. 1-pressure gauge; 2-tank; 3-specimen; 4-putter; 5-lock device; 6-action generating device Figure 2 Principle of the test device The master cylinder fills the brake fluid and drains the air. After the piston pump has been pressed from the initial position for 5 mm, close the outlet and lift it As the generating device 6, the hydraulic pressure reaches 1 MPa or 9 MPa, respectively, after locking the locking device 5, the recording pressure gauge 1 hydraulic pressure from Steady time to 30 s pressure drop. 5.4 Work durability test 5.4.1 The work durability test includes a room temperature durability test, a high temperature durability test and a low temperature durability test. 5.4.2 test in accordance with the normal temperature - high temperature - low temperature cycle, the specimen in the specified temperature environment for more than 2 h, then Start experimenting. The trial was conducted in three cycles. Test frequency, the number of single cycle test and the total number of times in Table 2. 5.4.3 The maximum angle between the putter and the piston when tested is 3. The 5.4.4 Adjust the action generating device to meet the piston stroke is greater than 80% of the maximum stroke of the master cylinder. 5.4.5 adjust the load device to ensure that the total piston piston movement to no more than 40% of the action stroke, the hydraulic chamber to establish (1.5 ± 0.3) MPa hydraulic. Hydraulic pressure is no longer increased, when the pressure 0.3 s ~ 0.5 s, holding time not less than 0.6 s. Table 2 test frequency, the number of single cycle test and the total number of times At room temperature and low temperature Test frequency/(times/min) 15 ~ 30 4 ~ 8 Number of single cycle tests/times 225 000 225 000 3 000 Total number of times per state/time 675 000 75 000 9 000 5.5 Salt spray corrosion test The total cylinder brake fluid drained, the inlet, the liquid outlet blocked, with dust cover, put put together with salt spray test chamber Inside. According to GB/T 10125 3.2.1,8.1 in the provisions of the neutral salt spray test method, the master spray for 48 h, check Corrosion of the outer surface of the master cylinder. ......

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