Main precautions for mechanical impact testing of electronic products

Date：2024-03-14 11:38:31 Views：663

Mechanical impact testing mainly simulates the impact effects that equipment and its components may encounter during transportation or use, and analyzes the product's ability to withstand external impact environments through transient energy exchange through shock waves. The intention of the experiment is to understand its structural weaknesses and functional degradation, which helps to understand the structural strength and appearance resistance to impact, drop, and other characteristics of the product. Effectively evaluate the reliability of products and monitor the consistency of production line products.

Mechanical impact test is a laboratory simulation of whether a product's function is normal and whether there is any functional failure when it is subjected to a series of impacts in the working environment. There are various impact environments during the practical storage, transportation, and use of products, such as braking during vehicle operation, and impacts caused by collisions during goods moving.

The technical indicators of the impact test include: peak acceleration, pulse duration, speed change (half sine wave, post peak sawtooth wave, trapezoidal wave), and waveform selection. The conventional mechanical impact test requires 3 impacts on each surface, with a total of 18 impacts on 6 surfaces. Mechanical impact and collision tests can verify and confirm the weak links of the machinery, and assess the integrity and reliability of the product structure.

Mechanical impact generally occurs with a greater acceleration and shorter duration, such as mechanical collisions in natural environments. Mechanical impact may have harmful effects on the structural and functional integrity of the product. The mechanical impact types of laboratory institutions are divided into three types: half sine wave, trapezoidal wave (square wave), and triangular wave (front sawtooth involves back sawtooth wave).

The following are common questions and answers regarding mechanical impact testing of electronic products:

What is mechanical impact testing?

Answer: Mechanical impact testing is a testing method used to evaluate the tolerance of electronic products to mechanical impacts during transportation and use. This testing method can simulate different types of impacts that electronic products may experience during transportation and use, such as free fall impacts, sine wave impacts, and half sine wave impacts.

What is the purpose of mechanical impact testing?

Answer: The main purpose of mechanical impact testing is to evaluate the tolerance of electronic products during transportation and use, to ensure that the product will not be damaged or malfunction under normal use. Through mechanical impact testing, potential issues that may arise during transportation and use of electronic products can be identified and resolved, improving product quality and reliability.

What are the common problems in mechanical impact testing?

Answer: Common problems in mechanical impact testing include inaccurate testing equipment, inappropriate testing conditions, insufficient preparation of test samples, and incomplete recording of test results. In addition, there may be errors and interference generated during the testing process.

How to solve problems in mechanical impact testing?

Answer: To solve the problems in mechanical impact testing, it is necessary to pay attention to the following points:

-Select accurate testing equipment to ensure its accuracy and stability;

-Determine appropriate testing conditions and methods, including impact type, impact direction, impact amplitude, etc;

-Fully prepare test samples, including the quantity, size, weight, shape, etc. of the samples;

-Record detailed information on test results, including test time, test conditions, test samples, etc;

-Analyze and handle errors and interferences during the testing process to ensure the accuracy and reliability of the test results.

What are the standards for mechanical impact testing?

Answer: There are many standards for mechanical impact testing, common ones include IEC 60068-2-27, MIL-STD-810G, GB/T 2423.5, etc. These standards specify the testing methods, conditions, and samples for mechanical impact testing, which helps to ensure the accuracy and reliability of the testing.

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