Clamping device for secondary shielding adhesion tension test of MARK3 type enclosure system
A tensile test and clamping device technology, applied in measuring devices, mechanical devices, instruments, etc., can solve the problems of secondary shielding leakage of LNG, shipwrecks, LNG leakage, etc., and achieve a simple manufacturing process and a safety factor. High and easy-to-operate effect
Pending Publication Date: 2021-04-06
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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Problems solved by technology
If the test intensity does not meet the standard, there will be a risk of sub-shielding leakage during the transportation of LNG, resulting in leakage of LNG and serious accidents such as ship destruction and human death
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[0016] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.
[0017] This embodiment provides a MARK3 type containment system sub-shield adhesion tensile test method, including the following steps:
[0018] Step 1. Make the stainless steel test block 5 and the shear test block 6. The stainless steel test block 5 includes two pieces. The two stainles...
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Abstract
The invention discloses a clamping device for a secondary shielding adhesion tension test of an MARK3 type enclosure system. The clamping device comprises the following steps of 1, manufacturing a stainless steel test block and a shearing test block; 2, a clamping tool being manufactured; 3, fully coating the mounting notch of the first stainless steel test block with glue, and placing the first stainless steel test block at the first end of the stainless steel test block mounting channel; 4, placing the shear test block on the mounting notch of the first stainless steel test block and positioning the shear test block in the shear test block mounting channel; 5, fully coating the mounting notch of the second stainless steel test block with glue, and placing the second stainless steel test block at the other end of the stainless steel test block mounting channel; 6, balancing weights are placed on the surfaces of the installed stainless steel test block and shear test block; 7, waiting till the glue is hardened; and 8, placing the adhesion test block in a low-temperature tension meter, and testing the maximum tension value and the shearing strength of the adhesion test block during fracture. The manufacturing process is simple, operation is convenient, the safety coefficient is high, working efficiency is improved, and experiment cost is saved.
Description
technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a MARK3 type containment system sub-shield adhesion tension test clamping device. Background technique [0002] During the construction phase of the liquid cargo tank containment system of the MARK3 type LNG ship, it is necessary to test the adhesion strength of the secondary shield. The adhesion strength shear test is carried out at minus 170 degrees Celsius, the tensile strength must reach 37.5KN, and the shear force must reach more than 15MPa. If the test intensity does not meet the standard, there will be a risk of sub-shielding leakage during the transportation of LNG, resulting in leakage of LNG and serious accidents such as ship destruction and death. Therefore, the accuracy requirements for the adhesion strength test of the secondary shielding are high, and the requirements for the production accuracy of the single shear test block and the adhesion straig...
Claims
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Login to View More IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 张豪朱焊烽王德明
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP