HG/T 2148-1991 Test method for closed rubber and plastic mixing mills HG/T2148-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2148-91
Test Methods for Closed Rubber Mixing Machines
Published on August 19, 1991
Ministry of Chemical Industry of the People's Republic of China
Standard Exchange Network a.bseoao.cum Various Standards Industry Flow Free Download 1992-01-01 Implementation
Chemical Industry Standard of the People's Republic of China
Test Methods for Closed Rubber Mixing Machines
Subject Content and Scope of Application
This standard specifies the test conditions, means and methods for closed rubber mixing machines with elliptical rotors. This standard is applicable to closed rubber mixing machines with elliptical rotors. This standard should be used in conjunction with GB9707 and GB9708. 2 Reference standards GB9707 Technical conditions for closed rubber mixing mills GB9708 Basic parameters of closed rubber mixing mills and plastic mixing mills HG/T2108 Determination of noise level of rubber machinery 3 Testing of basic parameters 3.1 Testing of total volume of mixing chamber 3.1.1 Testing conditions: Use a barrel that can contain the volume of the working part of the rotor (see Figure 1): a. b. "Normal temperature water, 3.1.2 Testing instrument: scale. 3.1.3 Testing method: IIG/T2148-91 After filling with water, immerse the rotor end by end in water until the other end of the working part of the rotor is flush with the horizontal plane, and use The water overflowing from the bucket is collected in the sink, and the weight is weighed on the scale to convert the volume. Then the volume of the non-working part immersed in the water is subtracted. This is the volume of the working part of the rotor;
Use method a to measure the volume of the working part of the other rotor; b.
According to the sample size of the mixing chamber, calculate the volume of the mixing space, subtract the volume of the working parts of the two rotors, and the total volume of the mixing chamber is obtained.
Ministry of Chemical Industry of the People's Republic of China,
Approved on August 19, 1991
Standard of the Ministry of Machinery and Electronics Industry of the People's Republic of China
Jheaoan
Implementation on January 1, 1992
3.2 Detection of unit pressure of the material by the thallium indenter 3.2.1 Detection conditions:
HG/T2148--91||tt ||a. Material: raw rubber (density 0.9), PVC granules (density 1.4); b. Under load operation conditions, the pressure roller moves to the upper working position 3.2.2 Testing instrument: pressure gauge
horizontal plane
3.2.3 Testing method: After 30 minutes of load operation, the pressure roller moves to the working position, and the K force value of the cylinder (or oil roller) is measured by the force gauge: According to the force value on the gauge, the unit force on the material is calculated using formula (1): p
In the formula: p is the unit force of the pressure roller on the material, MPa; Fo.
is the compressed air (or liquid) pressure, MPa; F is the projected cross-sectional area of ​​the pressure roller working surface, mm2; Fo.Www.bzxZ.net
is the inner diameter cross-sectional area of ​​the cylinder (or oil roller), mm3.3 Testing of the main motor power
3.3.1 Testing conditions: At rated voltage and rated speed 3.3.2 Testing instrument: power meter.
3.3.3, Testing method: Under rated voltage and rated speed, use a power meter to measure the power value of the main motor during load operation, measure three times, and take the maximum value as the power value of the main motor 2
Standards
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4 Technical requirements for testing
4.1 Idling main motor power and bearing temperature rise HG/T214891
Testing conditions: Under rated voltage and rated speed, after idling for 1.5h, 4.1.1
Testing instrument:
Power meter;
Semiconductor spot thermometer (hereinafter referred to as spot thermometer) Testing method:
Use a power meter to measure the power value of the ten motors. Measure three times, and take the maximum value as the power value of the main motor running without load: Use a point thermometer to measure 3 points along the 4 rotor bearing end faces, take the maximum value minus the room temperature, which is the temperature rise of the rotor bearing: Use a point thermometer to measure 3 points along the outer surface of the reducer high-speed bearing and take the maximum value: minus the room temperature is the temperature rise of the reducer bearing. 4.2 Detection of bearing temperature rise and maximum overflow during load operation Detection conditions: Under rated voltage and rated speed conditions, after 1.5 hours of load operation. 4.2.1
Detection instrument: point thermometer.
Detection method:
The maximum value measured by the detection method in Article 4.1.3b is the maximum temperature of the rotor bearing during load operation, and this value minus the room temperature is the temperature rise of the rotor bearing during load operation; b. The maximum value measured by the detection method in Article 4.1.3c is the maximum overflow of the reducer bearing during load operation, and this value minus the room temperature is the temperature rise of the reducer bearing during load operation. 4.3 Test of the hardness of the rotor ridge
4.3.1 Test method 1
4.3.1.1 Test conditions:
Make a sample block with alternate materials and process conditions (see Figure 2); b. While surfacing the hard alloy layer of the rotor ridge, surfacing a layer of hard alloy with the same thickness as the hard alloy layer of the rotor ridge on the surface of the sample block.
4.3.1.2 Test instrument: Hardness tester.
4.3.1.3 Test method: After polishing the hard alloy layer surfacing on the sample block, divide the sample block into 5 equal points along the length direction (see Figure 2), measure its hardness with a hardness tester, and take the arithmetic average as the hardness value of the rotor ridge. 120
4.3.2 Test method 2
After the rotor ridge is built-up with a hard alloy layer, take more than 3 points in the length direction of the rotor and 2 points in the length direction of the rotor short edge. Use a hardness tester to measure the hardness and take the arithmetic mean as the hardness value of the rotor ridge. 4.4 Test of the inner surface hardness of the mixing chamber
4.4.1 Test method 1
4.4.1.1 Test conditions:
a. Same as item a in 4.3.1.1;
While building up the hard alloy layer on the inner surface of the mixing chamber, build up a layer of hard alloy with the same thickness as the hard alloy layer on the inner surface of the mixing chamber on the surface of the sample.
Testing instrument: hardness tester
4.4.1.3 Testing method: Same as 4.3.1.3, 4.4.2 Testing method 2
After the hard alloy layer is welded on the inner surface of the mixing chamber, take more than 5 points on the inner surface of both ends of the mixing chamber, measure the hardness value with a hardness tester, and take the arithmetic average as the hardness value of the inner surface of the mixing chamber. 5 Detection of whole machine noise
Testing conditions: Under rated voltage and rated speed conditions, during idling. Testing instrument: sound level meter (type II)
5.3 Testing method: According to the provisions of HG/T2108. Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the National Technical Committee for Rubber and Plastic Machinery Standardization. This standard was drafted by Dalian Rubber and Plastic Machinery Factory. The main drafters of this standard are Cai Suzhen and Yan Jintao. Standard exchange mbz6080.00p People's Republic of China
Chemical Industry Standard
Closed Rubber Mixing Machine Test Method
HG/T2148-91
Editor Chemical Industry Standard Editorial Department
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright is exclusive and may not be reproduced
Format 880×12301/16 Printing Sheet Number of Words 8000 First Printing in July 1992
First Edition in July 1992
Print Number 1-500
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