HG/T 3123-1998 Technical Specifications for Tire Strength, Bead Unseating and Static Load Testers HG/T3123-1998 Standard download decompression password: www.bzxz.net

ICs 71. 120; 83. 200
Mailing number 1982-1998
Chemical Industry Standard of the People's Republic of China
HG/T 3123-1998
Technical condition ot the tyre strengthtubness unseating , dead load tester1998-03-17 Issued
Implementation on 1998-10-01
Issued by the Ministry of Chemical Industry of the People's Republic of China GB/T 3123-1998
This standard adopts IS010191:1993(E) Passenger car tyre performance test - Indoor test method and IS010454:1993 Truck and container tyre performance test - Indoor test method. The strength, breakaway and static load test items of tires are the basic items of tire inspection. At present, dozens of such test machines have been produced in China. In order to ensure the consistency of the technical requirements of the test machines with the international and national method standards, and to ensure the comparability and accuracy of the test results, this standard is to be formulated.
The technical parameters of this standard are consistent with the requirements for test equipment parameters in IS010191 and IS010454, and are formulated in combination with the actual situation of the production technology level of test machines in my country.
This standard is proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the Rubber Testing Instruments and Equipment Standardization Technical Committee of the Ministry of Chemical Industry. The drafting unit of this standard: Beijing Rubber Industry Research and Design Institute of the Ministry of Chemical Industry. The main drafters of this standard are Hao Ninghe, Zhang Xin and Li Guanjun. WW.bzsoso. cOmScope
Chemical Industry Standard of the People's Republic of China
Technical condition of the tyre strengthtubness unseating dead Ioad testerHG/T3123—1998
This standard specifies the structure, requirements, test methods, inspection rules, markings, packaging, transportation, storage, etc. of tire strength, unseating dead Ioad tester. It is applicable to truck tires, passenger car tires, passenger car tubeless tires and motorcycle tire strength, unseating dead Ioad tester (hereinafter referred to as tester).
2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is difficult to publish, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. GB 4504--84
HG/T 2382-92
HG/I 2443--93
IS0101911993(E)
3Structure
Test method for unbending resistance of tubeless passenger car tires Technical conditions for rubber testing equipment and equipment General technical conditions for determination of static load performance of tires
Performance inspection of passenger car tires - Indoor test method The testing machine consists of a main machine, a hydraulic device, a unbending frame, an automatic control system, etc. 3.1 The main machine is equipped with a tire support device, a cylinder, a pressure head and a static load pressure plate that meet the requirements of relevant standards. 3.2 The driving cylinder used in the hydraulic device to provide controllable and adjustable oil pressure and flow should provide sufficient load force and stable speed for the test.
3.3 The structure of the unscrewing frame is in accordance with the provisions of GB4504 standard. Its structure is shown in Figure 1. Approved by the Ministry of Chemical Industry of the People's Republic of China on March 17, 1998 and implemented on October 1, 1998.
MW.3.4
The automatic control system should include a microcomputer device, measurement data processing, printing and control devices, and be capable of collecting the force value and pressure depth displacement value in the test and performing digital or pressure plate control.
a) Ambient temperature: host 5~40℃; microcomputer device 16~28℃; b) Relative humidity is less than 85%;
c) The power supply voltage of the host is 380±38V,
d) The host is placed on a solid foundation.
4.2 The movement of the pressure head must be ensured when the host is manufactured.
4.3 The pressure head is a circular steel body with a sufficiently long
single unit cargo
≥135
shaped end, the true
head diameter
is less than 2°
as shown in Table 1,
pressure diameter ±0.5
de-rounding block material: AI-Si2MgTi or AI-Si7Mg0.3; its shape should comply with the specifications for pressure blocks in ISO10191:1993 (E). 4.4
The flatness of the working surface of the tire static load test plate shall not exceed 0.1mm. 4.6 Basic parameters
a) Rim diameter for strength and static load test: 200mm~510mml
b) Section width of tire for strength and static load test: less than 380mm
c) External diameter of tire for strength and static load test: d) Rim diameter for bead unseating test:
e) Section width of tire for bead unseating test:
) External diameter of tire for bead unseating test:
less than 1400mm,
250mm~410mmg
less than 108mm
less than 800mm.
4.7 Control parameters
a) Loading force range:
0.5KN~98KN
b) Loading force accuracy: 1% (full scale): c) Displacement range:
d) Displacement accuracy:
0~400mm,
±1% (full scale):
e) Tire pressing speed:
50±2.5mm/min.
4.8 Control accuracy
HG/T3123-1998
a) During the static load test of tires, the error between the controlled force value F and the set force value Fs is less than 5% of the indicated value. b) During the tire strength test, the error between the measured destructive energy value W and the set destructive energy value Ws is less than 5% of the indicated value. c) In the derounding resistance test of passenger car tires, the measured dynamic value has an error of the set force value. 4.9 Basic requirements for testing machines, appearance quality and electrical performance Basic requirements for testing machines, appearance quality and electrical performance should meet the requirements of 4.10 Transport bumpy performance
The testing machine should be able to withstand
5 Test methods
5.1 Test conditions and measuring instruments for the test
5.1.1 Test conditions
The test is carried out under the provisions of 4.1 of this standard
5.1.2 Measuring instruments for the test
transport bumpy test. The specification of
882 is 2% of the indicated value.
a) Standard dynamometer: range 0~10KN, 0~50KN, 0~10KN (configured as needed) accuracy: not less than 0.5%; 6) Stopwatch
c) Qualified tire (after static load test, strength or debonding test d) Steel ruler (0.5m~1m)
e) Tape measure (2m)
5.2 Detection of basic parameters
Use a steel ruler to measure the distance from the center of the tested tire to the pressure head (pressure plate, pressure block) 5.3 Detection of control parameters
5.3.1 Loading force range and accuracy inspection
Install the standard dynamometer on the tire support
value sensor on the same straight line, one piece,
two pieces,
one,
one.
Meet the requirements of 4.6a)~f).
The
of the
type machine is slow to release the pressure transmitter and
after the process is the force range of the roll shop
. Adjust the zero point of the testing machine and meet the requirements of a) and b) in 4.7.
5.3.2 Displacement indication range and accuracy inspection
upper, and adjust the standard dynamometer to contact the force and add the load to reach the specified
and the standard dynamometer indication error should meet
Place a steel ruler under the oil cylinder and parallel to the piston rod, fix a marking pointer at the lower end of the piston rod, point to the zero position of the steel ruler, let the piston go down, record the displacement value of the steel ruler and the error and indication range of the computer display value, which should meet the requirements of c) and d) in 4.7. 5.3.3 Tire pressing speed inspection
Use a stopwatch to measure the piston rod downward speed, which should meet the requirements of 4.7). 5.4 Control accuracy detection
5.4.1Inflate the tire according to HG/T2443 standard, install the static load pressure plate, set the force value Fs and conduct the test for 15 minutes. The error between the static load force value F and the set force value Fs of the tire shall comply with the provisions of a) in 4.8 of this standard. 5.4.2Replace the tire strength pressure head, set the destruction energy value Ws and conduct the tire strength test. The test is repeated 5 times. The error between the controlled destruction energy value W and the set destruction energy value W shall comply with the provisions of b) in 4.8. WwwW.bzsosocomHG/T3123-1998
5.4.3Fix the tubeless tire of the passenger car on the unseating frame in accordance with GBt504 regulations and conduct the unseating resistance test. After presetting the maximum resistance value Fs allowed for unseating, conduct the test 5 times. The error between the controlled force value F and the set force value Fs shall comply with the provisions of c) in 4.8 of this standard. 5.5 Basic requirements for testing machines, appearance quality and electrical performance inspection Basic requirements for testing machines, appearance quality and electrical performance inspections shall be carried out in accordance with the provisions of HQ/T2382 and shall comply with the requirements of 4.9 of this standard. 5.6 Transport bump performance inspection
Transport bump inspection of testing machines shall be carried out in accordance with the provisions of HG/T2382 and shall comply with the requirements of 4.10. Inspection rules
Each testing machine must be inspected and qualified by the manufacturing unit and have a product certificate before it can leave the factory. 6.1 The inspection of testing machines is divided into factory inspection and type inspection. Factory inspection is carried out in accordance with 4.7 and 4.8 for each machine. Type inspection is carried out by sampling in accordance with 4.6, 4.7, 4.8, 4.9.4.10. 6.2 The testing machine shall be subjected to type inspection under the relevant circumstances specified in HG/T2382. 6.3 The sampling and judgment rules for type inspection shall be implemented in accordance with the relevant provisions of HG/T2382. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation, storage, etc. of the testing machine shall comply with the relevant provisions of HG/T2382. 8 Random documents
The types and storage effects of the random documents of the testing machine shall comply with the relevant provisions of HG/T2382. People's Republic of China
Chemical Industry StandardWww.bzxZ.net
Tire Strength, Bead Unseating, Static Load
Technical Conditions for Testing Machines
HG/T3123—1998
Editor China National Chemical Equipment Corporation
Postal Code 100011
Printer Beijiao Chemical University Printing Factory
All rights reserved. No reproduction allowed
Format 880×12301/16 Printing Sheet 0.75 Words 10.5 Yu Qianxue First Edition September 1998 Second Printing September 1998 Number of Prints 1—100
Cost: 8 Yuan
bzsso.com866183181/0
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