Method for measuring connector brazing angle
A technology of brazing material and size, applied in the field of brazing angle and lap joint of T-joint, can solve the problems of insufficient thickness of accumulation, low strength, unable to objectively reflect the strength of welded joint, etc., and achieve reliable measurement results and size of brazing angle. only effect
Inactive Publication Date: 2018-05-15
HARBIN DONGAN ENGINE GRP
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However, these dimensions cannot reflect the strength of the welded joint very objectively, that is, sometimes the accumulation height is very high, but the accumulation thickness is insufficient, and the actual strength is very low, while the strength determined by the above method is high
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[0012] As shown in the figure, a method of measuring the fillet angle of a joint includes the following steps:
[0013] (1) According to the use environment and requirements of the welding parts, calculate the limit height of the solder pile, that is, the maximum and minimum values, and fit it to the arc size of the solder pile;
[0014] (2) Under a microscope, magnify one side of the connector to 50X;
[0015] (3) Select the sample plate with the largest size and the smallest size of the arc, and fit it with the brazing horn under the microscope;
[0016] (4) If the radian value of the brazing angle is between the maximum size and the minimum size, the welding is qualified, otherwise, it is judged as unqualified.
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The invention relates to a method for measuring connector brazing angle. The original mode of judging the soldering quality by measuring the stacking height of the solder is changed, and qualificationjudgment is performed through comparison of the sample plates of the limit size under the microscope. The actual stacking situation of the brazing material is objectively reflected so that the soldering strength can be accurately judged, the measured brazing angle size is unique and the measured result is reliable.
Description
technical field [0001] The invention relates to a method for measuring the brazing angle of a joint, especially the brazing angle of lap joints and T-shaped joints. Background technique [0002] In the field of vacuum brazing, at lap joints and T-joints, the position where the solder accumulates on the substrate is usually called the joint fillet. If the size of the brazing horn, that is, the radius or diameter of the arc formed by the solder accumulation is too small, it means that the strength of the brazing joint is insufficient, and if the radius or diameter of the brazing horn is too large, it means that the brazing filler metal dissolves the substrate too much. At present, the strength of the welded joint is usually determined by measuring the height of the solder accumulation at the position of the solder angle, that is, figure 1 The dimensions of K1, K2, K3 and K4 in the middle. However, these dimensions cannot objectively reflect the strength of welded joints, tha...
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Login to View More IPC IPC(8): G01B11/24G01N21/88
CPCG01B11/24G01N21/88
Inventor 郑医张宇慧王广海师玉英宋健陈健李学成祁成雷金玉亮陈玉宝
Owner HARBIN DONGAN ENGINE GRP