Some standard content:
UDC 678. 4. 07
National Standard of the People's Republic of China
G 9899- 88
Revised as: HG30&0-188
Rubber materials for vibration isolators1988-09-20 Issued
National Technical Supervision Week
Implementation on 1989-05-01
National Standard of the People's Republic of China
Rubber materials for vibration isolatrsSubject content and scope of application
This standard specifies the types, codes, properties and test methods of rubber materials for vibration isolators. UIC 678.4.07
GR $89988
3 HGh3680--1988
This standard applies to rubber materials of vulcanized rubber products (hereinafter referred to as anti-vibration rubber products) generally used for doors to prevent or buffer the transmission of vibration and impact. This standard is not applicable to hard rubber, rubber fabric or rubber reinforced with other yarns. Reference standards
CR.527 General requirements for test methods for hardened rubber GB528: Determination of tensile properties of hardened rubber GB531 Test method for type A hardness of rubber GB 1681
GB1683
Determination of rebound resilience of vulcanized rubber
Determination of permanent deformation of hardened rubber by constant deformation compression force method G3 1690
Test method for resistance of fluidized rubber to liquids
G133512
Test method for hot air aging of rubber
G137762 Test method for ozone aging of vulcanized rubber Static tensile test
3 Types
The rubber materials of shockproof rubber products are divided into five types according to their use purposes, see table! ：Table 1
- Requirements for vulcanized rubber (excluding BC, D, and above) in the impact resistance performance of vegetable rubber
Vulcanized rubber with weather resistance (with mild weather resistance) is required to have vibration attenuation performance Vulcanized rubber with heat resistance is required to have vegetable rubber
The rubber material codes of shockproof rubber products are shown in Table 2 to Table 6. The type of rubber material and the integer of 10 times the static tensile and impact elastic modulus (unit MPa) are listed in parallel to form the code
The rubber material properties of shock-limiting rubber products should be tested according to the test methods of Sections 6 and 7. They must meet the general standard requirements of Table 2 and Table 6
Approved by the Ministry of Chemical Industry of the People's Republic of China on April 19, 1988 and implemented on May 1, 1989
GB 9899—88
Special temperature standard is only applicable to special requirements. When the special standard and general standard of the same non-energy are inconsistent, the special standard shall be adopted. 2
Aging test 0x70h)
Static tensile value Time
H Shrinkage time
Water deformation rate
Original modulus
% God length unique change (0)
(70rx22h)
Simplified rate
Minimum road
A05 0. 19+n. 1 5ng
A06 0. 59 + 0.11
A07 0. 69±0. 10
A08 0. 78+0. 14
au9[i! .1
410 0, 9810. 10
A12 .1. 18-0. 12
A13 J.27-0. 13
.37—0.18
7-0. 15 25b
1, 96 -- !, 20
-10 +30
10-1 30
-10-30
-n---Rt
- 1u 3t
- —
10~- 3
:0-130
Continental Test
(N. 31::al: *)
: 78t 91 0. 11)
1. 08±0. 11
.1. 18+ . 12
1 27± 0. 13
1.37±0.14
1. 57±0. 16
1. 96± 0 . 20
most people
smallest road
book test
++00c ×r0h)
learning rush length
change rate
most people
113 --—100
1(--- +100
.- 10-- 100
10~-+-100
-10-- 100
10-- 1to
10-. -- 10m
10.-.+100
clock length rate
teaching small fake
maximum road
n Hushan elasticity
long small Bai
shrinkage long building shape
(100 rx 221
ap presbyopia test
(ne h)
hard change section
(Shore A type)
(0 -- 1 7)
(0-- 1 7)
(0~+7)
(B—7)
(G-.—7)
long change rate
(iuu (*22h)
Note: 1) The numbers in brackets are special standards; when the static tensile modulus is not specified, only the following provisions apply. 2
a Aging test
(70.XTOL)
Other rate change
Minimum value
a Education test
10n2 >:7ih
Elastic change normalization station
(Handelsheng）
(0.~ 1 13)
(0~+1)
(0. - 15)
(0-- —15)
(0-~ : :5)
(0--:-15)
(0~ +15)
(0+la)
0~-+[3)
(0~ F13)
(-~ 115)
(u~ [5)
Stationary tensile elongation
Set small goods
Scratch test
(N3 standard
100 c x70h3
Volume change rate
Maximum road
：120
GB9899
Aging test
(100 0. X7h)
28Additional length
Apply for construction rate
19~-100
Competition strength
Responsibility rate
Minimum value+5ip15h
10 100
-- E0~- 100
- 10~--+ 100
10~! 100!
-E0-~ F100
-10.~ +-100
10~ + 5 30
-10.--+-1c0
0 100
Positive long-term change
1.00t>7m)
The most people along
Special standard
Permanent change
Ci00t:x7ar?
The most people
Note:) The value in the new number is the special standard: it does not specify the single model of the state, only applicable when the specified breaking degree is below. A standard test
tinec.?m+
李A)
0- 115)
(0~ 1153
(0+1)
40~-1 15)| |tt||(0 -1 152
(0- --15)
(0--+-16)
(0---15)||tt| |(0 -~ F15)
static pull
sieve mode
0. 49±0. 10)
: 0.a9+0..0
0. 69+ 0. 10
. 78 + 0. 10
0. a8- 0. 10
0. 98±0. 11
1. 08 + 0. 11
1. 15+0. 12
1. 27 ± 0. 13| |tt||1. 37+ 0. 14
1. 57±,u. *
1.77- 0. 18
1. 96±0.20
minimum滇
Elongation
Static tensile strength
Strength modulus
0. 49+ 0. 10
0. 59—0. 11
j0. 8910. 10
GB 989988
Aging test (cxo)
25 long response
Force change cableWww.bzxZ.net
- 113 ~ - 30
10~---30|| tt|| 10--- 1- 34
10~- 1 30
-10~. +30
-10~- 1 30
=[6 .- +30
— 10—30
1n→ 1 30
—10- + 30
-- 10-~ + 30
— 10~-1 30
10~-+30
Aging test
(125×70h)
Length change
Minimum push
Use shrink bearing Long
Change rate
Length rate (0 ()
Square change
0. 78±0. 10
E:0910.85:t : 0. 10
0. 98 4 0. :0
1.0810.11
1. 18: 0. 12
1. 27= 0. 13| |tt||1.37 +0.14
-- 10---+ 61
—16:~+60
10~- ! 60
10~+60
10~+·60
Suan Dazhen| |tt||Bottom shrinkage permanent shaping section
(70C:X22b)
Maximum value
Permanent deformation rate
(125(X22h)
Special Standard elegance
Pure percussion
Drum value
Minimum absolute
a!! Aging test
aAging test
(hcX7oh)
Hardness change
(Shore A)
(0·~+7)
( 1 7)
(0~---7)
(0~+7)
(0--17)
( 0~- +7)
(0~ +7)
(0- -7)
(0-- 7)
<0~+7)
(0~+7)
[0-+7)
a:Aging test
(135 c ×700)
(:25C×70h)
Hardness change
(A open!）
1(-~+)
( 0--1 10)
(0-.-+ 10)
(0- +1(0)
(0~ — 10)
(0 ~-+10)
(0~ F1)
(u--- +10)
Note: 1) The values in brackets are special standards and are not specified. When tensile elastic filling is used, it is applicable only to the specified hardness ratio. 6. General conditions for the test: The general conditions for the test are in accordance with the provisions of GB527. However, the specimens are made of specific models by sparse The vulcanization conditions should be recorded. Test methods for general standards
GB 9899 88
Static tensile elastic modulus: Static tensile elastic modulus is measured according to Appendix A with 25% long stress 2 and press Calculate the static tensile elastic modulus using the formula 7.1
, and keep the value to one decimal place. Gx-1.639 r2
In the formula: G,-
-static tensile elastic modulus Modulus, MPa;
-25% secondary stress.MPa
7.2 Secondary elongation: Elongation is carried out according to GB528! 7.3 Aging test: The aging test is carried out according to GB3512. The 25% elongation stress before and after the aging test is measured and its change rate is calculated. 7.4 Total oxygen growth test: Ozone aging test is carried out according to GB7762. 7.5 Shrinkage permanent deformation test: Compression permanent deformation test is carried out according to CB1683 is underway. 7.6 Oil resistance test: The oil resistance test is carried out according to (B1690. And calculate the volume change rate of H. Special standard test method
Hardness test: The hardness test is carried out according to GB531. If the static elastic modulus resistance is determined according to 7.1. The hardness can be omitted. Similarly, the static tensile modulus test can be omitted when measuring hardness. 8.2 Aging test: The aging test is carried out according to <13512. Calculate the hardness change before and after the aging test. Length change rate, in this case, the determination of 25% elongation stress is omitted.
8.3 Impact elasticity test, the impact elasticity test is carried out in accordance with GB1681. 9
Special standard symbols
When specifying hardness See the table for the symbols:
Allowance of the degree of crushing
(Shaw A type)
The aging test record is shown in Table 8:
Omit the static tensile elastic raw model test, and use the standardized test certificate number. Omit the static tensile elastic raw model test Determination, using aging test to make Table 8 || tt || I 2 ~ Table B special standards. Determination of hardness change a2 || tt || Table 2-~ Clothing 6 special standards, tide fixed elongation change rate shrinkage permanent deformation rate See Table 9 for the symbols:
Table 2 Ai 4 Table 6 Special standard tour
See Table 10 for the symbols of the new elastic test:
Determination of the 25% secondary long sense force omitted| |tt||! 、Table 6 Special Standards
Table 5 Special Groups
9.5 Other Symbols See Table 11:
Special Symbols Other than the above
Indicates Method
GB 9899
Rubber materials for shockproof rubber. Express the minimum value of impact resistance and the maximum value of impact elasticity in the following way. Record the test method and test results. 10.1 In principle, the designated values of rubber materials shall be stated. If special standards are adopted, the symbols of the special standards adopted shall be listed after the continuous symbol. When listing the symbols of special standards, they shall be recorded in the order of Chapter 8. Example: AIti,AI0 bit,D12-r:
10.2 If the static tensile modulus is not measured, the estimated value shall be recorded in brackets. When recording the estimated value of the static tensile modulus, the static tensile modulus shall be recorded in brackets. 10.3 If, when specifying hardness, the specified value uses a standard other than that in Tables 2 to 6 (for example, when specifying the product displacement constant), the key point of the standard must be noted in parentheses. .
Example 1: A (10) Ja: (m (Shore A) = 55) Example 2 (16) z [Compression spring constant: 0 (2900kgf) - <1000kgf) 2.40 ± 0.36mn) AI sample
GB9899 -8.8
Appendix A
Test method for low elongation stress of vulcanized rubber
(Supplement)
Shape and size of the specimen The shape of the specimen is a long force shape, The standard push dimensions are shown in Table 1. A1.1
The green line of the key part of the test piece
in principle, type 1 specimens are used, and type 2 specimens are used in cases where the stress is low or type 1 specimens are difficult to prepare. A1.2 Preparation of the test piece: The test piece is prepared according to the method in Article 4.2 of GB528, or the model can be directly vulcanized into a specimen that meets the size. A1.3 Determination of the thickness and width of the test piece: The thickness and width of the test piece are determined by the following methods: A1.3, 1 The thickness measurement should be carried out near the marking line (including the marking line), and the center of the pressure surface of the thickness gauge is not allowed to be read outside the edge of the test piece: The arithmetic mean of the measurement is the test piece's sequence number. The original test rules are as follows: 5 points are measured for the upper type specimen and 3 points for the second type specimen. A13.2 When only the value of the low elongation stress is to be measured, the width of the cutter (the mark on the inner edge) is the width of the specimen. If the absolute value of the low elongation is to be measured, the arithmetic mean of the actual widths of the upper and lower surfaces is the width of the specimen. The same applies to the specimens not cut by a cutting machine. In principle, the width is measured using a microscope with a 1.01mm scale between the test piece markings. A7.3.3 The cross-sectional area of the specimen is calculated according to formula (A1): (A1)
Where: cross-sectional area quotient. mm\
-thickness m
width a
A1.4· The marking line for measuring the length of the specimen can be determined according to the following method: A1.4. 1 The distance between marking lines shall be as shown in Table A1.
A1,4.2 The marking lines must be clearly drawn with the center of the specimen as the center (the width of the marking lines should be within 0.2mm). A1.5 Inspection of the specimen; the specimen must be inspected, the difference between the maximum and minimum thickness values shall not exceed 0.1mm, the width difference of the specimen shall not exceed 1mmt, and the specimen shall not have foreign matter, bubbles and damage. A2 Testing device
A2,7 The structure of the testing machine: The testing machine must have a clamp for retaining the specimen and a measuring device that can measure the distance between marking lines to an accuracy of 0.1m. It must have a load that can reach the allowable tolerance of ±?%. A2.2 Full load of the testing machine: The testing machine used, when the specified length (%>), the load required for its extension should be within the range of 15%~85% of the full load of the testing machine.
A2.3 Tensile speed: The tensile speed of the specimen is 40± mm/mi. A3 Test method
Installation of sample: The installation position of the sample should make the distance between the two sides of the marking line equal, and the interval should be 2 times the distance between the marking lines. The test piece should be properly mounted on the fixture, and the sample should not be slightly distorted or have other adverse phenomena during the test. A3.2 Preload: When measuring the elongation stress, a secondary load should be applied before the test, that is, the load should be applied from 0% to 15% of the impact length, and the load should be kept at 0% and 1.5% of the inclination length for 30 seconds respectively. The loading and unloading speeds are both 30~-60mm/min. A3.3 "Main test": The main test (the second main test) is generally carried out under load. The loading speed is different from the expected negative speed. The same, after adding load, measure its load 30s.
A3.4% elongation stress:% elongation stress is calculated according to formula (A2): F
Where:
2% elongation stress, MPat
?% elongation load, N,
cross-sectional area of the specimen. cm.
Processing of test results: The test uses 1 specimen, and the test results are expressed as arithmetic mean. The test results must include the following:
Elongation stress, MPa;
Specific elongation, %
Specimen model:
Full-scale load of the test machine;
Test temperature;
Other items that must be remembered.
Additional instructions;
This standard was issued by the Rubber Products Standardization Technical Committee 1 of the Ministry of Rubber Industry, and this standard was drafted by the Shenyang Rubber Industry Products Research Institute of the Ministry of Chemical Industry. The main drafters of this standard are Jing Yiqi, Chen Fengshan and Chen Yulian. This standard uses the industrial standard J1SK6386-77 (85) "Rubber materials for shockproof rubber products". -(A2)
Chinese People's Machinery
National Standard
Rubber materials for anti-corrosion rubber products
GE 9899..88
Published by China International Standards Press
(Beijing Fuwai Sani)
Printed by China Standard Publishing House Beijing Printing Factory
Published by Xinhua Publishing House Beijing Distribution Office Sold by Xinhua Publishing House Copyright is exclusive and cannot be reproduced
Book 880×12301/16 Printing sheet 3/4
Number 15000
1989 B edition 1589 August Sichuan first printing Printing number 3
13:155066+1-6508
3 Wide price 0.54 yuan
Le H 120—14
8-apas ygn
-6686-9288
Published by Zhongzhou International Publishing House
(Beijing Fuwai Sani)
Printed by China Standard Publishing House Beijing Printing Factory
Distributed by Xinhua Publishing House Beijing Distribution Office Sold by Xinhua Publishing House Copyright is exclusive and cannot be reproduced
Book 880×12301/16 Printing sheet 3/4
Number 15000
First edition in August 1989 First printing in Sichuan in August 1589 Number of prints 3
13:155066+1-6508
3 Wide price 0.54 yuan
Le H 120—14
8-apas ygn
-6686-9288
Published by Zhongzhou International Publishing House
(Beijing Fuwai Sani)
Printed by Beijing Printing Factory of China Standard Publishing House
Distributed by Beijing Publishing House of Xinhua Publishing House Sold by Xinhua Publishing House Copyright is exclusive and cannot be reproduced
Book 880×12301/16 Printing sheet 3/4
Number 15000
First edition in August 1989 First printing in Sichuan in August 1589 Number of prints 3
13:155066+1-6508
3 Wide price 0.54 yuan
Le H 120—14
8-apas ygn
-6686-92
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