HG/T 3121-1998 Technical Specifications for Rubber Disc Oscillating Rheometer HG/T3121-1998 Standard download decompression password: www.bzxz.net

ICS71.12083.200
Registration No. 1980-1998
Chemical Industry Standard of the People's Republic of China
HG/T 3121-- 1998
Technical Conditions of Oscillating Disc Curemeter for Rubber
Specifications of Oscillating Disc Curemeter for Rubber1998-03-17 Issued
1998—10—01 Implementation
Issued by the Ministry of Chemical Industry of the People's Republic of China HG/T 3121-1998
1 Specification
Citation
3 Structure
Test method
Inspection rules
Marking, packaging, transportation and storage
8 Random documents
.HG/I3121-1998
This standard adopts the international standard IS03417--91 (confirmed in 1991) Method for determination of chemical properties of rubber (round disc vulcanizer is a revision of ZN72022-89. This standard adopts the reference standard, modifies the size of the mold and rotor, and makes changes to the quality and technical indicators, inspection and maintenance of the round disc vulcanizer. The necessary amendments and supplements shall be made to the relevant chapters and articles. This standard shall replace ZBN72022-89 from the date of implementation. 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 units of this standard are: Beijing Rubber Industry Research and Design Institute of the Ministry of Chemical Industry, Sichuan Jiangling Instrument Factory, Beijing Huanfeng Chemical Machinery Experimental Factory, and Changrong Second Testing Machine Factory.
The main drafters of this standard are: Zhang Shubo, Zhang Xin, Yang Aimin, Xu Zeming, and Sun Wenming. .1 Model Figure
Chemical Industry Standard of the People's Republic of China
Technical Conditions for Rubber Disc Oscillating Vulcanizer
Specifications of ascillating dise curemeter for rubberIIG/T 3121—1998
Replaces ZBN72022-89
This standard specifies the structure, requirements, test methods, inspection rules, markings and packaging and transportation of rubber disc oscillating vulcanizers. This standard is applicable to rotor disc oscillating vulcanizers (hereinafter referred to as vulcanizers) for determining the vulcanization characteristics of mixed rubber. 2 Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. The parties using this standard should discuss the possibility of using the latest versions of the following standards. HG/T2382--92 General technical conditions for rubber testing instruments and equipment 3 Structure
3.1 Main structure of vulcanizer
Main structure of vulcanizer:
8) Model (see Figure 1):
b) Rotor;
) A device for controlling and maintaining a constant temperature of the mold body; d) A device for controlling and maintaining a specified closing force of the mold cavity e) A transmission device for driving the rotor to swing at a constant speed 1f) A torque display device.
3.2 Mold body and rotor
3,2.1 Mold bodyWww.bzxZ.net
The mold is a mold for placing the rubber sample and the rotor, and is composed of an upper and a lower part. The structure and main dimensions of the upper and lower mold bodies are shown in Figures 2 and 3. 3.2.1.1 The upper and lower mold bodies are made of steel with small thermal deformation and a hardness of more than HRC50 after treatment. The surface of the mold body is engraved with radial grooves with rectangular sections every 20°. The upper mold body must be designed by appropriate means, or during the test, pressure must be applied to the sample to minimize the movement between the mesh disk and the rubber sample. 3.2.1.2 Drill holes on the sides of the upper and lower mold bodies according to the positions in Figures 2 and 3 to insert temperature sensors. 3.2.1.3 The center of the lower die should be provided with a hole for inserting the rotor shaft. This hole should be equipped with an appropriate low constant friction seal to prevent cavity chips from falling from the die face.
3.2.2 Rotor
The rotor is composed of a double-cone disc and a shaft, see Figure 4. The double-chain mesh disc is made of steel with small thermal deformation and a hardness of HRC50 or above after treatment. The rotor size is shown in Table 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
W.2
Diameter 35.55
Radius 0.80
Groove width 0.80
Groove depth 0.80
Groove length 7.50Minimum
12.50Small quantity
Note: The grooves on the upper and lower surfaces should be staggered by 5°Heater
Upper mold
Lower mold
Seal ring
Heater
HG/ T3121-1998
Rotor size
Groove width 0.80
Groove depth 0.80
Groove length 7.5min
9.5min
Diameter 9.51
Disc shaft medical part length 20.0
Disc shaft square part length 35.0
Figure 1 Rheometer components
Upper plate
Humidity sensing element
Lower plate
9
HG/T3121-1998
24. 1±0. 1
341.9±0.1
054.6=0.2
Figure 2 Upper mold body
R2, 4±G. 4
Groove detail
HG/T3121-1998
@55.9±0.2
g1.003±0.03
18.3±0.2
Figure 3 Lower mold body
Sea increase detail
.HG/T 3121--1998
Figure 4 Rotor
6. 28± 0. cao
W.4 Requirements
4.1 Normal working conditions
HG/T 3121—1998
The positive belt working conditions of the vulcanizer shall comply with the provisions of HG/T2382. 4.2 Recording device, the time for a full stroke shall not be greater than 1s. 4.3 Torque measurement
4.3.1 The torque measurement error is less than 0.5% of the full range. 4.3.2 The torque curve should be smooth, without burrs and fluctuations. 4.4 Test temperature
4.4.1 Temperature control range 100~200℃, temperature resolution 0 Note: Other temperatures can also be customized according to user requirements4.4.2 When the upper and lower molds are preheated, their temperatures should reach stability within 60min4.4.3 Test temperature Under the temperature stable state, the temperature fluctuation range of the upper and lower molds shall not exceed ±0.3℃. 4.4.4 The mold body should have strong temperature recovery ability. 4.5 Rotor swing frequency
The rotor swing frequency should generally be 1.7±0.1Hz or 0.050±0.002Hz. 4.6 Rotor swing angle
When the mold cavity is unloaded, the swing angle of the rotor relative to the center position of the shaft is 1°3°, 5 or 1°, 3°. The swing angle accuracy is 1.00°±0.02°, 3.00°±0.035.00±0.05%. 4.7 Closing force
The total closing force when the mold cavity is closed is 11.00.5KN. This closed state is maintained during the entire test process. 4.8 Basic requirements
Basic requirements for vulcanizers The appearance quality and electrical properties should comply with the requirements of HG/T2382. 4.9 Transportation bump performance
Transportation bumps should comply with the provisions of HG/T2382. 5 Test method
5.1 Test conditions and instruments, tools, and tools used 5.1.1 Test conditions
The test shall be carried out under the conditions specified in 4.1 of this standard 5.1.2 Test instruments, tools and measuring tools: a) One dial indicator (0.01mm);
b) One three-level 50N magnetic code (±0.001N); e) One stopwatch (0.1s);
d) One magnetic table stand;
e) One set of swing angle measuring device (or one torque calibrator); f) One special temperature measuring device (system accuracy is 0.1C); 8) One pressure measuring device.
5.2 Use a stopwatch to check the recording device. The full travel time of the X axis shall not be greater than Is. 5.3 Test of torque measurement system
5.3.1 Torque measurement error test
Note: You can select one of the following.
5.3.1.1 Test with torque calibrator
WHG/T 31211998
Use the torque calibrator that has been calibrated to replace the rotor in the closed-mode operation and adjust the torque so that the torque system measurement error meets the requirements of this standard. 4.3.1.
5.3.1.2 Test with code
Use the 50N three-dimensional code and calibration disc of the pendulum measuring device to apply a known torque to the torque sensor, and adjust the torque measurement system so that the measurement error complies with 4.3.1 of this standard.
1 Pull the wheel,
2 Pull the calibration disc!
3 Pull the calibration disc!
Figure 5 Calibration of the torque measurement system using a magnetic code 5.3.2 Short-circuit test
Use the ear measurement method to check the torque curve, which should comply with 4.4.3 of this standard.5. 4 Temperature test
5.4.1 Check the temperature control instrument control range and temperature resolution, which shall comply with 4.4.1 of this standard.5.4.2 Use a stopwatch to check the instrument heating time, which shall comply with 4.4.2 of this standard.5.4.3 Use a special overflow measuring device with a system accuracy of ±0.1°C to measure the upper and lower mold body temperatures. The mold body leakage passively shall comply with 4.4.3 of this standard.5.4.4 Adjust the mold body temperature to 160±0.3°C, put the 23.0±0.5°C glue sample into the mold cavity, and the mold body temperature within 2m shall be restored to ±10°C.
5.5 Rotor swing frequency test
Use a stopwatch to measure the rotor swing rate, and take the arithmetic mean after three measurements. The frequency error shall comply with 4.5.1 of this standard. The frequency error is calculated according to formula (1):
f(%) =
wherein: 1—theoretical frequency value of the calibration test, H21—measured frequency value, Hzi
f—frequency error.
5.6 Rotor lifting angle test
B-× 100
A set of special swing angle measuring disc is installed (see Figure 6), and the swing angle error is calculated according to formula (2) and formula (3): 2a =
360(L, L,)
n(D + d/2)
n=-x100
wherein a
is the measured swing value,
is the maximum reading of the dial indicator, mm;
is the minimum reading of the dial indicator, mm;
is the diameter of the correction disc, mm;
is the diameter of the steel wire, mm;
is the theoretical rotation angle value:
is the swing angle error.
HG/T3121-1998
2 Brick code, · dial indicator
2. Correction diagram
Figure 6 Swing angle measurement device diagram
. Magnetic seat
The test measurement should be repeated three times, and the arithmetic mean of α is taken. The swing angle error should comply with 4.6 of this standard. 5.7 Closing force test
Use a pressure sensor and its matching instrument to measure the total closing force when the mold cavity is closed, which should comply with 4 and 7 of this standard. Before the test, a piece of soft paper with a thickness of less than 0.04mm should be thrown on the joint surface of the lower mold
body. After the mold body is closed, the indentation on the paper should be continuously and evenly distributed. If it is not continuously distributed, the upper and lower mold bodies must be readjusted or replaced. 5.8 Basic requirements inspection
The basic requirements, appearance quality and electrical performance tests of the vulcanizer shall be carried out in accordance with the relevant provisions of HG/T2382. 5.9 Transport performance test
The transport performance test of the vulcanizer shall be carried out in accordance with the relevant provisions of HG/T2382. 6 Inspection rules
Each vulcanizer shall be inspected and qualified by the quality inspection department of the manufacturer and accompanied by a product certificate before it can leave the factory. 6.1 The inspection of the vulcanizer is divided into factory inspection and type inspection. The factory inspection shall be carried out one by one according to the requirements of 4.2~4.8, and the type inspection shall be carried out according to 4.2~4.9.
6.2 The vulcanizer shall be type inspected under the relevant circumstances specified in HG/T2382. 6.3 The sampling and judgment rules of the type inspection shall be carried out in accordance with the relevant provisions of HG/T2382. 7 Marking, packaging, transportation and storage
The marking, packaging, transportation and storage of the vulcanizer shall comply with the relevant provisions of HG/T2382. 3
8 Random Documents
HG/T3121-1998
The types and storage of random documents of vegetable processor shall comply with the provisions of HG/T2382.
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