HG/T 2149-1991 Test methods for open rubber mixing mills and plastic mixing mills

HG/T 2149-1991 Open Rubber Mixing Machine and Plastic Mixing Machine Test Method HG/T2149-1991 Standard Download Decompression Password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2149--91
Test Method for Open Rubber Mixing Machine and Plastic Mixer
Published on August 19, 1991
Ministry of Chemical Industry of the People's Republic of China
Standard Exchange Network a.bseoao.cum Various Standard Industry Flow Free Download 1992-01-01Implementation
Chemical Industry Standard of the People's Republic of China
Test Method for Open Rubber Mixing Machine and Plastic Mixer
Subject Content and Scope of Application
This standard specifies the testing conditions, instruments and methods for open rubber mixing machine and plastic mixing machine. This standard is applicable to the inspection of open rubber mixing mills and plastic mixing mills. 2. Reference standards: HG5-1613. Test method for chilled cast iron. HG/T2108. Determination of sound pressure level of noise in rubber machinery. 3. Technical requirements for inspection: 3.1. Inspection of bearing body temperature rise during idling. 3.1.1. Inspection conditions: After idling for 1.5 hours, inspection instrument: semiconductor point thermometer (hereinafter referred to as point thermometer). 3.1.2. Inspection method: HG/T2149—Use a point thermometer to measure at least 3 points on the outer shell of each bearing body on the inner side of the left and right frames, and take the maximum value of the reading; use a point thermometer to measure at least 4 points on the outer shell of the reducer where the bearing is installed, and take the maximum value of the reading. The overflow rise is calculated according to the following formula: bZxz.net
Temperature rise = measured overflow working environment temperature
3.2 Detection of bearing body temperature and reducer bearing body temperature during load operation 3.2.1 Detection conditions: after 1.5h of load operation. 3.2.2 Detection instrument: point thermometer.
Testing method:
a. Use a point thermometer to measure at least 3 points on the outer shell of each bearing body on the inner side of the left and right frames, and take the maximum reading. On the outer shell of the reducer where the bearing is installed, use a point thermometer to measure at least 4 points, and take the maximum reading. b
3.3 Detection of motor power during idling 3.3.1 Detection conditions: After idling for 1.5 hours. 3.3.2 Detection instrument: power meter
3.3.3 Detection method: Use a power meter to test at least 3 times, and take the maximum reading. 3.4 Roller detection
3.4.1 The detection of the depth of the white port layer and the working surface hardness of the roller shall be in accordance with the provisions of HG5-1613. 3.4.2 Detection of the working surface roughness of the roller: 3.4.2.1 Detection conditions: After the finishing of the roller working surface is completed. 3.4.2.2 Testing instrument: surface roughness measuring instrument or surface roughness comparison sample 3.4.2.3 Testing method: use the measuring instrument to measure the two simple working surfaces or use the sample for comparison. Ministry of Chemical Industry of the People's Republic of China
1991-08-19 Approved
Standard of Ministry of Machinery and Electronics Industry of the People's Republic of China
1992-01-01 Implementation
3.5 Testing of assembly accuracy
G/T2149-91
3.5.1 Testing of relative position error of two horizontal planes on the left and right racks where the bearings are mounted and relative position error of two vertical planes on the left and right racks in contact with the rear bearing body:
3.5.1.1 Testing conditions: left and right racks are fixed in place: 3.5.1.2 Testing instrument: feeler gauge and disc shaft (straightness reaches level 2 flat ruler accuracy) or flat ruler and feeler gauge. 3.5.1.3 Inspection method:
Inspection of relative position difference between two horizontal planes: Use the measuring axis to measure the diagonal detection (Figure 1) and parallel detection on the horizontal plane to be measured, and use a feeler gauge to read the gap. Finally, take the maximum value of the gap; several sections with equal distance (see Figure 2), Figure!
Inspection of relative position difference between two vertical planes: Use the measuring axis to measure the diagonal detection (Figure 3) and parallel detection on the vertical plane to be measured (Figure 4), Figure 3
At the same time, use a feeler gauge to measure the gap, and finally take the maximum value of the gap. 3.5.2 Inspection of the clearance between the bearing body and the pressure cover: 3.5.2.1 Inspection conditions: The front roller bearing body is installed between the frame and the pressure cover. Testing instrument: feeler gauge,
3.5.2.3 Testing method: Use feeler gauge to measure the clearance between the left and right bearing bodies and the pressure cover respectively. 3.5.3 Testing of the total axial clearance between the two end faces of the roller journal and the bearing end faces: 3.5.3.1 Testing conditions: Same as 3.5.2.1. 3.5.3.2 Testing instrument: feeler gauge,
3.5.3.3 Testing method: Use feeler gauge to measure the clearance between the left and right end faces of the roller journal and the left and right bearing end faces respectively. The sum of the two clearances is the total axial clearance, or move the roller axially so that the clearance at one end is zero, and use feeler gauge to measure the clearance at the other end.
3.6 Safety and noise detection
3.6.1 Safety detection
Standardized by the standard network
HG/T2149-91
3.6.1.1 Detection conditions: The roller is in an idle state. 3.6.1.2 Detection instrument: Steel tape measure or tape measure. 3.6.1.3 Detection method: Record from the start of braking to the stop of the roller, and measure the arc length of the roller working surface during this process. Measure at least 3 times and take the maximum arc length. The test result is expressed as the ratio of the arc length to the circumference of the roller working surface. Noise detection
Detection conditions: After idling for 1.5 hours.
Testing instrument: sound level meter (Type II).
According to the provisions of HG/T2108
Testing method:
Additional instructions:
This standard was proposed by China National Chemical Equipment Corporation, and was under the jurisdiction of the National Technical Committee for Standardization of Rubber and Plastic Machinery. This standard was drafted by Dalian Rubber and Plastic Machinery Factory. The drafters of this standard are Zhang Yuxiang and Liu Chenghou. The standard exchange network
CCn various standard industry information is free to download
People's Republic of China
Chemical Industry Standards
Open Rubber Mixing Machine Plastic Mixing Machine Test Method
HG/T214991
Editor: Chemical Industry Standard General Department
(Standardization Research Institute of Ministry of Chemical Industry)
Former political code: 100013
Printing: Chemical Industry Standardization Research Institute
Copyright reserved. No reproduction allowed
Word count: 8000
Format: 880×12301/16 Printing sheet%
First edition in September 1992
First edition in August 1992
Print run: 1-500
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