JB/T 10155-1999 Test method for grinding performance of coated abrasives, emery cloth and sandpaper

JB/T 10155-1999 This standard specifies the content of the test method for the grinding performance of abrasive cloth and sandpaper: test equipment, test conditions, sample preparation, test procedures and processing of test results. This standard is applicable to abrasive cloth, sandpaper and water-resistant sandpaper. This standard is published for the first time. JB/T 10155-1999 Test method for the grinding performance of coated abrasives, abrasive cloth and sandpaper JB/T10155-1999 Standard download decompression password: www.bzxz.net

JB/T10155—1999
The grinding performance test method specified in the original GB4979-85 "Sheet-shaped Abrasive Paper" is an important test method for abrasive paper. Since most of the content in this standard has been included in the three industry standards JB/T3889—1994 "Abrasive Cloth", JB/T7498--1994 "Abrasive Paper" and JB/T7499--1994 "Water-resistant Sandpaper" promulgated in 1994, and this standard has also been abolished, the grinding performance test method of abrasive paper needs to be specified in the corresponding standard. This standard is based on the original GB4979--85, combined with the current domestic production and use conditions, and the grinding performance test method of abrasive paper is formulated. This standard is proposed and managed by the National Technical Committee for Standardization of Abrasives and Grinding Tools. Drafting unit of this standard: Jinan Abrasive Cloth Factory
Participating drafting units of this standard: Zhengzhou Abrasives and Grinding Research Institute, Baige (Group) Co., Ltd. The main drafter of this standard is Xu Hengqin.
1 Scope
Machinery Industry Standard of the People's Republic of China
Coated Abrasives
Test method of the grinding properties of abrasive cloth and abrasive paper
Coated abrasives--Test method of the grinding properties of abrasive cloth and abrasive paperJB/T10155—1999
This standard specifies the content of the test method of the grinding properties of abrasive cloth and abrasive paper: test equipment, test conditions, sample preparation, test procedures and processing of test results.
This standard is applicable to abrasive cloth, sandpaper and water-resistant sandpaper. 2 Test equipment
2.1 Grinding performance tester for emery cloth and sandpaper
a) The end face runout of the grinding disc of the grinding performance tester is not greater than 0.05mm; b) The grinding disc speed of the grinding performance tester is (320±5)r/min; c) Grinding track: The inner diameter of the track ring is (87±0.2)mm; the ring width is (16.5±0.4)mm. 2.2 Balance
The graduation value of the balance is 0.01g.
2.3 Constant temperature water bathbZxz.net
The water temperature fluctuation is ±2℃.
3 Test conditions
The grinding performance test conditions of emery cloth and sandpaper shall comply with the provisions of Table 1. Table 1 Grinding performance of abrasive cloth and sandpaper Test conditions Sand
Diameter, mm
Hardness, HRB
Grinding pressure, N
Grinding time, min
Grinding path, mm
Test atmosphere conditions
Animal glue abrasive cloth
Phenolic semi-resin abrasive cloth
Full resin abrasive cloth
Phenolic semi-resin abrasive cloth
Ring width 16.5±0.4|| tt||Ring inner diameter 87±0.2
Temperature: 20C±2C
Approved by the State Machinery Industry Bureau on 1999-10-08 326
Animal glue sandpaper
LY12CZ
12+g15
Relative humidity: 60%~70%
Resin sandpaper
Water-resistant sandpaper
LY12CZ
2000-03-01 Implementation
4 Preparation of test specimens
JB/T10155—1999
The product to be inspected is made into a disc-shaped test specimen with an outer diameter of 165mm±2mm and an inner diameter of 10~20mm. 5 Test procedure
5. 1 Grinding test
a) Take a sample and place it under atmospheric conditions for 24 hours. Weigh its mass as W, place it on the grinding disc of the pre-grinding performance tester and clamp it with the grinding disc cover:
b) Take a test rod and weigh its mass as G1, clamp it on the grinding performance tester; c) Start the motor, then add a code of specified mass to make the test rod and the sample fully contact, and start timing at the same time; d) Keep running at a constant speed, stop after the specified time, remove the test rod and sample respectively, and weigh their masses as G2 and W2. 5.2 Wet grinding test
8) Take a sample and soak it in water at a temperature of 40°C for 4 h) Take it out and place it on the grinding disc of the grinding performance tester, and clamp it with the grinding disc cover ring:
b) Take a test rod, weigh its mass as Gi, and clamp it on the grinding performance tester; c) Open the water spray pipe valve to allow water to rush to the contact point between the test rod and the sample; d) Start the motor, then add a code of specified mass to make the test rod and the sample fully contact, and start timing at the same time, adjust the contact point between water and the sample;
e) Keep running at a high speed, stop after the specified time, take out the test rod and the sample respectively, drain the water on the test rod, and weigh its mass as G2. 6 Processing of test results
a) The amount of metal removed is calculated according to formula (1):
G=G-Gz
Where: G——amount of metal removed, g,
Gi---mass of the test rod before grinding, g;
--mass of the test rod before and after grinding, g.
b) The sample sand removal amount is calculated according to formula (2):
W-WI--W?
W-sample sand removal amount·g;
--sample mass before grinding, g;
W2-sample mass after grinding, g.
c) The calculation result is rounded to one decimal place according to the digital rounding rules. 327
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.