HG/T 2381-1992 Water pressure burst test method for impermeable graphite tubes HG/T2381-1992 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2381-92
Test Method for Water Pressure Burst of Impermeable Graphite Tubes 1992-09-15 Issued
Ministry of Chemical Industry of the People's Republic of China
Implementation on 1993-07-01
Chemical Industry Standard of the People's Republic of China
Test Method for Water Pressure Burst of Impermeable Graphite Tubes Subject Content and Applicable Scope
HG/T2381-92
This standard specifies the instrument, equipment, specimen, test steps and result processing methods for the water pressure burst test of impermeable graphite tubes. This standard is applicable to the determination of the water pressure bursting force value of impermeable graphite tubes. 2 Reference standards
GB/T13465.1 General principles for test methods for mechanical properties of impermeable graphite materials HG/T2059 Technical requirements for impermeable graphite tubes and fittings 3 Equipment and instruments
3.1 High-pressure plunger pump or high-pressure gear pump with sufficient pressure, 3.2 Pressure gauge: the dial scale limit value is 16MPa, the accuracy is not less than level 1.5, vernier caliper: 0~500mm, graduation value 0.02mm. 3.3bZxz.net
3.4 ​​Test device: The test device is shown in Figure 1: Approved by the Ministry of Chemical Industry of the People's Republic of China on September 15, 1992 and implemented on July 1, 1993
4 Test specimen
IIG/T2331-92
Connect pressure
Free pipe
@32/@22
@507@36
According to the factory
Figure 1 Wu Yu machine structure device Figure
1--Nut: 2-Machine base: 3-Light bar: 4-Die base ring flange: 5.6 Upper and lower die bases; Main machine movable slide plate: 8-Active copper sleeve: 9-Main machine pressure head: 10-Thrust bearing: 11-Nut: 12-Main machine upper cover: 13-Magnetic head; 14-Handwheel 4.1 The sampling method of the sample shall be carried out in accordance with the relevant provisions of GB/T13465.1. 4.2 The appearance of the sample shall comply with the relevant provisions of HG/T2059 4.3 The sample shall be as shown in Figure 2. The outer diameter, wall thickness and deviation shall comply with the product standard 4.4 The number of disks of each group of samples shall not be less than 5.
5 Test conditions and test steps
HG/T2381-
L-300±1
Figure 2 Sample size
5.1 The test environment temperature is room temperature, and the sample is placed at room temperature for no less than 2h. 5.2 The test water should be kept clean and the water temperature should not be lower than 5℃. 5.3 Safety protection measures should be taken during the test, and the pressure system should be properly inspected. 5.4 Check the appearance and geometric dimensions of the sample according to the provisions of 4.2 and 4.3. 5.5 Number the qualified samples
5.6 Vertically load the sample into the test device and rotate the handwheel to seal the two ends of the sample. 5.7 Fill the sample with clean water, remove the air, and close the exhaust valve. 43
5.8 Start the pressure pump and increase the pressure at a speed of 1~2MPa per minute until the sample is destroyed. Read the maximum value when the sample bursts, which is the burst pressure value.
6 Test results
6.1 The deviation between the burst value of a single sample and the average value is not greater than 20%. If one of them is greater than 20%, the sample is discarded and another sample with the same process conditions is retested. If the retest value meets the deviation range, the retest value is used to replace the scrapped sample data to calculate the average value. 6.2 If the test value deviation of two samples in a group of samples is greater than 20%, the group of samples is discarded and another group is retested. 6.3 Use the following formula to calculate the arithmetic mean X of the valid data, rounded to three significant figures. X
Where: X—test value of a certain sample;
—number of valid data.
7 Test report
The test report shall include the following contents:
Specimen name, specification, number and source; single value and average value of the test result of the sample: test unit, test personnel;
Sample date, test date.
Additional remarks:
This standard was proposed by China National Chemical Equipment Corporation, HG/T2381—92
This standard was drafted by the National Technical Committee for Standardization of Non-metallic Chemical Equipment and Jilin Songjiang Carbon Rope Factory. The main drafter of this standard is Du Mingyan. From the date of implementation of this standard, the former standard HG5-1332-80 "Graphite Tube Burst Test Method" issued by the Ministry of Chemical Industry will be invalid. The People's Republic of China
Chemical Industry Standard
Hydraulic Pressure Burst Test Method for Impermeable Graphite Tube HG/T2381-92
Editor: Chemical Industry Standard Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing: Standardization Research Institute of the Ministry of Chemical Industry
Copyright: Excessive printing is prohibited
5 sheets of paper Number of words: 6000
Format: 880×12301/16
Reverse: First printing in July 1993
First edition in July 1993
Printing efficiency: 1300
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.