Method for measuring tensile strength of connecting piece base

Abstract

The invention relates to a method for measuring the intensity of tension of a base of a connecting piece, comprising the following steps that: 1. the base of the connecting piece is welded to a steel plate; 2. a first end on a tension device of a tensile strength tester is fixed on the base of the connecting piece; 3. a bracket is arranged between the tension device and the steel plate, a second end of the tension device extends out from the bracket; 4. a mounting plate is sleeved on the second end and is positioned on an upper panel of the bracket; 5. a spring gasket is sleeved on the secondend and is folded on the mounting plate, finally, a nut is screwed on the spring gasket; 6. a data wire is connected from the tension device to a data display device, the nut is turned by a spanner and is separated from the steel plate by applying a stretching force on the base of the connecting piece finally, the value displayed by the display device finally is the maximum tension sustain value of the base of the connecting piece. The measurement is easy to practice by adopting the method for measuring the intensity of tension of the base of the connecting piece of the invention. The invention has convenient operation and high measuring accuracy, and raises the efficiency of construction.

Description

technical field [0001] The invention relates to tensile force measurement, in particular to a method for measuring the tensile force bearing value of a connector base of a fixed insulating box on an LNG ship. Background technique [0002] The connecting base is an important part in the construction process of the liquefied natural gas ship (LNG ship). The connecting base is welded on the inner wall of the hull, and the welding position of the connecting base is in the middle of the installation position of the adjacent insulating box. During the installation of the insulating box on the inner wall of the ship, the end of the spider clip with external threads is fixed in the internal thread on the base of the connector to realize the fixing of the main body of the spider clip, and then the spider clip is pressed by its upper spider leg Temporary fixation of the insulation box during installation is realized on the upper surface of the insulation box. [0003] The structure o...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the test of the tensile strength of the connecting base is to use a large-scale tensile instrument commonly used in the market, which is cumbersome and inconvenient to use, and often requires multiple people to operate, and the accuracy of the test results varies greatly

Another reason is that a large number of connector bases need to be welded during the construction of an LNG ship, and the tensile strength of each connector base needs to be measured, which will cause a huge workload and often require multiple people to spend a long time Time is measured repeatedly, resulting in a huge waste of labor and material costs

In the construction of liquefied natural gas ships, the tension device recommended by the French GTT company is a traditional hydraulic tension meter. This tension device often requires a second conversion to obtain the final value of the tension. It is cumbersome to use and the efficiency of the test is low.

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