Method for constructing performance evaluation device for reflow soldering equipment

Abstract

The invention discloses a method for constructing a performance evaluation device for reflow soldering equipment. The method comprises the step of building a supporting frame, a heat capacity module,a heat insulation device and a data collector. According to the invention, the independent heat capacity module is adopted; the independent heat capacity modules can test to obtain the real heat uniformity difference value of the same heat capacity module in the horizontal direction and the heat balance capability difference value between different longitudinal modules; materials with the heat conductivity coefficient not larger than the heat conductivity coefficient of the heat capacity module are adopted as a supporting frame. The characteristics of medium strength, small thermal expansion coefficient and good corrosion resistance are realized; direct heat conduction does not exist between the supporting frame and the heat capacity modules, heat exchange between the frame and the heat capacity modules is avoided by using a designed ultra-low import coefficient material as an intermediate transition material, and independent and diverse temperature data acquisition and analysis and mutual independent heat data acquisition between the temperature measurement modules can be realized.

Description

technical field [0001] The invention relates to the field of SMT hot air reflow soldering production, in particular to a method for building a performance evaluation device for reflow soldering equipment. Background technique [0002] In the field of SMT hot air reflow soldering production, there is currently a lack of professional testing for the evaluation of production equipment and reflow furnace equipment, mainly reflected in the impreciseness of the test methods and the lack of uniform standards for the calibration of test fixtures, which may easily cause deviations in the test and evaluation of equipment . The performance test currently used in the industry is to deploy several temperature measurement points on the entire aluminum plate or use the PCBA board to conduct 5-30 continuous temperature tests, and calculate the CPK as an evaluation of the performance of the reflow furnace. Assess for vulnerabilities. [0003] The performance evaluation of reflow furnace eq...

AI Technical Summary

Problems solved by technology

[0012] In order to solve the above problems and the diversity and non-uniformity of the reflow oven performance test equipment, it is necessary to avoid the above mentioned problems when designing the performance evaluation and test equipment of the reflow oven welding equipment, and design a The equipment that can calibrate the performance of the reflow oven and will not change with the width of the carrier or multiple continuous tests is used as the equipment for evaluating and testing the performance of the reflow oven

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