JB/T 8763-2001 Technical requirements for electro-hydraulic cement pressure testing machine
Some standard content:
ICS19.062
Preparation No.:
Machinery Industry Standard of the People's Republic of China
JB/T 8763-2001
Replacement 8763-1998
Electro-hydraulic cement pressure testing machine
Technical conditions
Specifications for the electro-hydraulic cumpression testing machines for cement2001-12-04Published
China Machinery Industry Federation
Implementation on 2002-03-01
JB/T B763-2001
This standard replaces JB/TB763-199B<Technical Record 3 of Electric Cement Pressure Testing Machine. The main changes of this standard compared with JB/8763-1998 are as follows: According to the requirements of the new standard 0B/17671-1999 (Test Method for Strength Test of Cement Glue Silicone (I5)), the force range and allowable error index are revised (32.6 of the 1998 edition and 3.2.6 of the 1998 edition); the requirements for the holding time of the test force are added (see 3.3.5); a unified test method is specified for the force speed error (the 1998 edition can Two types of force tolerance are specified), and the force tolerance error calculation formula is modified in the form of absolute error (4.3.3 of the 1998 edition and 4.3.3 of this edition); under the premise of ensuring that the allowable errors and relative resolution of the force measuring system of the acid tester remain unchanged, the lower limit of the test range of the tester is reduced from the original 10% of the maximum test force of the tester to 12kN as specified in this standard (4.4.1 of the 1998 edition and 4.4.1 of the last edition).
This standard was proposed by the National Technical Committee for Standardization of Testing Machines. This standard is under the jurisdiction of the National Technical Committee for Standardization of High-pressure Testing Machines. The drafting units of this standard are: Jianjiang Chongyuan Machinery Equipment Co., Ltd., Changchun Testing Machine Research Institute. The drafting units of this standard are: Wuxi Building Materials Instrument Factory, Jinan Testing Group Co., Ltd., Sanhai Shending Testing Co., Ltd.,
The main drafters of this standard are: Shi Canliang, Bao Yu, Zai Liying, Du Ronglin. The version replaced by this standard is: JB/T 8763-1998. wwW.bzxz.Net
1 Scope
Technical conditions for electro-hydraulic cement pressure test JB/T 8763—2001
This standard specifies the technical requirements, test methods, inspection specifications, marking and packaging of electro-hydraulic cement pressure test. This standard is applicable to electro-hydraulic cement force test with a maximum test force (F) not exceeding 30kN (hereinafter referred to as test). 2 Normative reference documents
The references in the following documents become the references of this standard through explicit reference. For references without a date, the revisions or amendments of the referenced documents after the date are not included in this standard. However, the latest version of these documents may be used in accordance with the agreement reached between this standard. For references without a date, the latest version shall apply to this standard. GBF2611-1992 Technical requirements for reduction test machines GB/16825-1997 Inspection of square testing machines (IDIS07500-1) G:1761-1999 Cement glue strength test method (JS0 flow IS0679) JB/T6:47--1992 Test package, packaging mark, storage and transportation are not in compliance with 3 Technical requirements
3.1 Environment and working conditions
Test to 5 The following conditions should be met for normal work:
When the temperature is 10 ~35 range;
b) The degree of integrity is not more than 80%;
needs no movement, the quality of the medium is in accordance with the world standard, that is, the strong electric monitoring field is provided by the user, the source voltage wave should not exceed the specified voltage 0%: the net blue standard is correctly installed, and the water level is 0.21000. 3.2 The equal force system
3? : The machine frame should have enough light and special test space to facilitate the installation of the test, standard and other dynamic devices. 3.2.2 The three cooling machines should be flat during the test. Especially the impact and shaking phenomenon, 3.2.3 The center load of the upper and lower pressure plates of the test machine should coincide with the center line of the frame. 3.2.4 On the working surface of the lower plate, the concentricity of the positioning result should be eliminated! The minimum depth of the engraved lines shall be based on the ease of inspection before they are placed at an angle of 90° to each other. 3.2.5 The ideal working surface shall be smooth and flat, and the maximum value of the surface roughness parameter Ru is 0.8μm; the Grignard roughness of the plate shall not be lower than SS ERC.
3.2.6 The test image can be carried out by checking the speed. During the entire forcing process, the force should be greater than 24m0N/s4200Nig until the sample is broken and the force reaches the requirements of CBrF[75711999]93. For parts not specified in G/T 17671, the forcing structure of the test machine shall comply with the provisions of the general standard for water filtration. 3.3 Force system
3.31 The force system of the test machine shall comply with the following provisions. The allowable error of the dynamic force and the relative error of the test parts shall be: 6) The relative error of the indication repeatability (b) can be as large as 15%:) The maximum allowable relative error of the zero point is 0.1%; The allowable relative error of the test device is 1
JB/T 87632001
3.3.2 The force indicating device shall be able to accurately indicate the test force value applied to the test piece. 3.3.3 The testing machine shall be able to accurately indicate the maximum test force value before the test force is cut off when the specimen is broken. 3.3.4 The force measuring system of the testing machine shall have the function of calibration value correction and zeroing. After the test force is removed or the maximum test force of the system is turned off, the force indication value shall return to zero. The error of the rate point shall comply with the provisions of 3.3.1c. 3.3.5 The test force holding time shall be not less than 303, during which the force value indication deviation shall not exceed 0.2% of the maximum test force of the testing machine.
3.3.6 Before the test machine is used, the warm-up time shall not exceed 30min, and the reference point within 15min shall be within +0.2% of the full scale. 3.3.7 The test machine adopts electronic force measurement. According to the needs, the force measurement unit can have a force guide output interface and a device connected to the printing device.
3.4 Test machine
The test machine should be able to complete the following test functions: 1) Constant force, test force, and cycle test; 2) It has the function of storing all test results and being able to check and read the test results; 3) It has the function of automatically processing and calculating the data in the memory. 3.5 Safety protection equipment
3.5.1 The safety protection device of the test machine should be able to record. When the force exceeds 2%-10% of the maximum test force of the test machine, the pressure control device should be activated immediately and the force should be stopped.
3.5.2 When the sample is broken, the test machine should immediately stop applying the test force to the sample. 3.5.3 The test machine should have a limit protection device. When it reaches the limit position, it should stop immediately. 3.6 The sound during the test should be normal, and the noise should not be greater than SBA). 3.7 The test machine should be able to withstand the test without damage after the test under the packaging conditions. After the test, the test machine should not be adjusted (no adjustment is allowed in the test procedure) and should still meet all the requirements of this standard. 3.8 The assembly quality, electrical equipment, hydraulic equipment and other requirements of the appearance quality test should meet the requirements of GB/T2611-1992, Chapter 42, Chapter 6, and the brand name drug regulations. ||4 Inspection method
4.1 Inspection bar
The inspection machine should be inspected under the spherical mirror and working recorder specified in the rate standard 3.1. 4.2 Inspection instruments
Inspection instruments, measuring tools and inspection tools include:) 0.3 grade standard dynamometer: hlomin gage
c) surface roughness tester or surface roughness comparison sample; d) 0.02mm/s water meter:
grade meter:
percentage meter for segmented recording and recording;
6 hand wet gage:
general measuring tools and inspection tools.
4.3 Test of force application system
4.3.1 During the process of applying and removing the test force, the test piece shall be tested only on the surface of the test piece or the surface of the test piece; the test piece shall be tested with a hardness tester. The test results shall meet the requirements of 3.2.5 of JB/T8763-2001.
4.3.3 This standard 3.2.6 The acceleration error shall be tested under 240N force.The 12kN force is divided into five intervals and the time required for the force increase is calculated using the formula (1):
AF—new force required, N:
—measured time corresponding to the force increase, 5. For each interval of the force increase speed, the error of each interval speed increase shall be calculated according to the formula:
Where.
Each required force error, s
V—nominal force speed. The error of each first two force increase speeds measured shall meet the requirements of 3.2.6 of this standard. 4.4 Inspection of force system
4.4.1 The relative error of indication, relative error of indication or refraction, relative error of zero point and relative component of force measuring system of the test machine shall be inspected and calculated according to the method specified in Chapter 5 of GBT16825-1997 from 12 onwards, and the result shall meet the requirements of 3.3.1 of this standard. 4.4.2 3.3.2, 3.3.3, 3.3.4 (except relative error of zero point), 3.3.5 and 3.3.7 of this standard shall be inspected and tested during the actual verification process. 4.4.3 Inspection of variable point drift of the test machine shall be carried out by preheating the test machine for a specified time, making it in a good working condition, fixing the zero point, and inspecting the zero point drift within the specified time. The zero point drift is calculated by formula (3): 100%
F zero point drift value.N
test navigation maximum test square.
The test results shall meet the requirements of 3.3.6 of this standard. 4.5 Test and inspection of the control room for testing
After the test room is ready, perform the test according to 3.4 of this standard. 4.6 Safety protection device test
4.1 Start the test machine, increase the test force to (102%~110%)F, and then test 3.5.1 of this standard. 4.6.2 Start the test machine, increase the test force to the test bar breaking stock, and observe and test 3.5 of this standard. 2.4.6.3 Start the test machine, increase the test force to the test bar breaking stock, and observe and test 3.5 of this standard. After the machine is tested, the plug rises and the observation test is carried out in accordance with 3.5.3 of this standard. 4.7 Noise Test
4.1 When testing the noise, the test machine should be in normal working state, and then the microphone of the sound meter should be placed facing the source of water, 10m away from the test machine, and the original height should be 1.5 meters. The test machine should be tested at least at four points, and the maximum value obtained at each point should be the product test result. The measurement results meet the requirements of 3.6 of this standard. 4.7.2 Before measuring or testing the noise of the machine, the sound of the operating environment should be measured, which should be at least 10 degrees lower than the sound level of the screen machine. If the difference is less than 3 degrees, the test result is invalid. If the difference is more than 3 degrees, the test data should be processed according to the instruction manual of the sound level meter.
4.9 Inspection of transportation durability
The transportation durability of the testing machine can be inspected by one of the following two methods: a) Place the packaging of the testing machine tightly on the contact table, and conduct a half-sine wave waveform 3
JB.TB763-20C1
. The severity level selected during the test is as follows: peak acceleration 100/±10m/s, pulse reading time 1! Ts±2m, pulse repetition frequency times/mir100 times/mn, avoidance control number 1 time±drink:
5 The test package is first loaded with a load of not less than 4t on the rear of the vehicle, and the flow rate is 25kn/l-40km/h on the intermediate road of the third-class highway for more than [00km, transport test, full machine position test or wheel screening test, without adjustment, and then the full inspection is carried out according to the requirements of this standard, and the results should meet the requirements of 3.7.
4.9 Inspection of assembly quality, electrical equipment, hydraulic equipment and appearance quality This standard 3.5 According to the requirements of 4.2.6, 7 and 8 of CB/T2611-1992, the test and sinking inspection are selected. 5
5.1 Factory inspection
5.1.1 Factory inspection items are all items except for this note 3.7. Products can only leave the factory after obtaining the certificate of conformity. 5.1.2 The measured data of the main items of the factory inspection shall be recorded in the factory acceptance record. 5.2 Type inspection
52.1 All technical requirements specified in the technical standards shall be tested by testing machines. 52.2 Type inspection shall be carried out in any of the following situations: the trial production and identification of new products from the company or the old products transferred to the factory for production; h) after the product is officially produced, its structural design, material technology, and other changes may affect the product performance; h) after the product is stopped for a long time, the production is resumed; ) when the national quality supervision and inspection machine is required to issue a type inspection ticket. 6.3 Judgment rules
5.3.1 For factory inspection, the pass rate of each factory inspection item of the testing machine should reach 100%. 5.52 For type inspection, when the batch size is 50 units, or 1 unit is unqualified after inspection, the batch of products is judged as unqualified.
6 Labeling and packaging
6.1 Labeling
6.t.1 The test product shall have a label with the following information: name;
5) Model:
c) Date of manufacture and serial number;
d) Maximum test force of the testing machine:
) Manufacturer’s name:
6.1.2 For products that comply with this international standard, the international standard number (code, serial number, year) shall be marked on the product or product packaging or product instructions.
6.2 Packaging
6.2.1 The packaging of the test product shall be waterproof, dustproof, rustproof and scratchproof. 6.2.2 General protective packaging shall comply with the provisions of 41.[.4.4.4 and 1.4.6 of JB/T6147-1992.TB763-20C1
Carry out drainage test, the severity level selected during the test is as follows: peak acceleration 100/±10m/s, pulse reading time 1! Ts±2m, pulse repetition frequency times/mir100 times/mn, avoidance control number 1 time±drink:
5 The test package is first loaded with a load of not less than 4t on the rear of a truck, and the flow rate is 25kn/l-40km/h on the intermediate road of the third-class highway for more than [00km], the transport test, the full machine position test or the wheel sieve test, without adjustment, the full inspection is carried out according to the requirements of this standard, and the result should meet the requirements of 3.7.
4.9 Inspection of assembly quality, electrical equipment, hydraulic equipment and appearance quality This standard 3.5 According to the requirements of 4.2.6, 7 and 8 of CB/T2611-1992, select and carry out test and regression inspection. 5
5.1 Factory inspection
5.1.1 Factory inspection items are all items except 3.7 of this note. Products can only leave the factory after obtaining the certificate of conformity. 5.1.2 The measured data of the main items of the factory inspection shall be recorded in the factory acceptance record. 5.2 Type inspection
52.1 All technical requirements specified in the technical standards for safety shall be tested by testing machines. 52.2 Type inspection shall be carried out in any of the following situations: trial design and appraisal of new products from the company or the transfer of old products to the factory; h) after the product is officially produced, its structural design, material technology, etc. have undergone major changes that may affect the product performance; h) when the product is resumed after a long period of suspension; ) when the national quality supervision and inspection machine is required to issue a type inspection ticket. 6.3 Judgment rules
5.3.1 For factory inspection, the pass rate of each factory inspection item of the testing machine should reach 100%. 5.52 For type inspection, when the batch size is 50 units, or 1 unit is unqualified after inspection, the batch of products is judged as unqualified.
6 Labeling and packaging
6.1 Labeling
6.t.1 The test product shall have a label with the following information: name;
5) Model:
c) Date of manufacture and serial number;
d) Maximum test force of the testing machine:
) Manufacturer’s name:
6.1.2 For products that comply with this international standard, the international standard number (code, serial number, year) shall be marked on the product or product packaging or product instructions.
6.2 Packaging
6.2.1 The packaging of the test product shall be waterproof, dustproof, rustproof and scratchproof. 6.2.2 General protective packaging shall comply with the provisions of 41.[.4.4.4 and 1.4.6 of JB/T6147-1992.TB763-20C1
Carry out drainage test, the severity level selected during the test is as follows: peak acceleration 100/±10m/s, pulse reading time 1! Ts±2m, pulse repetition frequency times/mir100 times/mn, avoidance control number 1 time±drink:
5 The test package is first loaded with a load of not less than 4t on the rear of a truck, and the flow rate is 25kn/l-40km/h on the intermediate road of the third-class highway for more than [00km], the transport test, the full machine position test or the wheel sieve test, without adjustment, the full inspection is carried out according to the requirements of this standard, and the result should meet the requirements of 3.7.
4.9 Inspection of assembly quality, electrical equipment, hydraulic equipment and appearance quality This standard 3.5 According to the requirements of 4.2.6, 7 and 8 of CB/T2611-1992, select and carry out test and regression inspection. 5
5.1 Factory inspection
5.1.1 Factory inspection items are all items except 3.7 of this note. Products can only leave the factory after obtaining the certificate of conformity. 5.1.2 The measured data of the main items of the factory inspection shall be recorded in the factory acceptance record. 5.2 Type inspection
52.1 All technical requirements specified in the technical standards for safety shall be tested by testing machines. 52.2 Type inspection shall be carried out in any of the following situations: trial design and appraisal of new products from the company or the transfer of old products to the factory; h) after the product is officially produced, its structural design, material technology, etc. have undergone major changes that may affect the product performance; h) when the product is resumed after a long period of suspension; ) when the national quality supervision and inspection machine is required to issue a type inspection ticket. 6.3 Judgment rules
5.3.1 For factory inspection, the pass rate of each factory inspection item of the testing machine should reach 100%. 5.52 For type inspection, when the batch size is 50 units, or 1 unit is unqualified after inspection, the batch of products is judged as unqualified.
6 Labeling and packaging
6.1 Labeling
6.t.1 The test product shall have a label with the following information: name;
5) Model:
c) Date of manufacture and serial number;
d) Maximum test force of the testing machine:
) Manufacturer’s name:
6.1.2 For products that comply with this international standard, the international standard number (code, serial number, year) shall be marked on the product or product packaging or product instructions.
6.2 Packaging
6.2.1 The packaging of the test product shall be waterproof, dustproof, rustproof and scratchproof. 6.2.2 General protective packaging shall comply with the provisions of 41.[.4.4.4 and 1.4.6 of JB/T6147-1992.
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