What is the significance of reliability testing? Why do we do reliability tests?

Date：2022-06-07 17:10:09Views：1107

Why should the product be tested for reliability? Why should enterprises conduct reliability testing on products? What is the significance of reliability testing? The so-called reliability is the ability of the product to complete the specified functions under the specified conditions and within the specified time. In the process of design and application, the product is constantly affected by its own and external climatic environment and mechanical environment, but still needs to be able to work normally. This requires the use of test equipment to verify it. This verification is basically divided into three parts: R & D test, trial production test and mass production sampling inspection. In short, reliability refers to the ability to complete specified functions within specified time and under specified conditions.

For products, the higher the reliability, the better. Products with high reliability can work normally for a long time (this is what all consumers need). Generally speaking, the R & D and production costs will be higher, but the later maintenance costs will be less; Generally speaking, the R & D and production costs of products with low reliability are low, but the later maintenance costs are high. In terms of technical terms, the higher the reliability of the product, the longer the product can work without failure.

The reliability of the product in actual use is called working reliability. Working reliability can be divided into inherent reliability and operational reliability. Inherent reliability is the reliability that the product designer and manufacturer must establish, that is, the reliability established in accordance with the reliability planning, from the selection of raw materials and parts, through design, manufacturing, testing, until the various stages of product production. Service reliability refers to the reliability of the products that have been produced after packaging, transportation, storage, installation, use, maintenance and other factors.

Elements of product reliability definition

Specified conditions (environmental conditions, load conditions, working mode);

Specified time (time to keep the product in good working condition and product life);

Specified functions (realization of product functions and product commitment to functions).

1. Reliability test is an activity to ensure that the product maintains functional reliability in all environments such as expected use, transportation or storage within the specified service life.

2. It refers to exposing the product to natural or artificial environmental conditions to undergo its effects, so as to evaluate the performance of the product under actual use, transportation and storage environmental conditions, and analyze and study the influence degree and action mechanism of environmental factors.

3. By using various environmental test equipment to simulate the high temperature, low temperature, high temperature, high humidity and temperature changes in the climatic environment, accelerate the reaction of the product in the service environment, and verify whether it meets the expected quality objectives in research, development, design and manufacturing, so as to evaluate the overall product to determine the reliability life of the product.

Purpose of reliability test

1. in the development stage, it is used to expose the defects in all aspects of the trial product and evaluate the reliability of the product to reach the predetermined indicators;

2. provide information for monitoring the production process in the production stage;

3. carry out reliability appraisal or acceptance for finalized products;

4. expose and analyze the failure rules, relevant failure modes and failure mechanisms of products under different environments and stress conditions;

5. to improve product reliability, formulate and improve reliability test scheme, and provide basis for users to select products.

The above contents are related to the significance of the reliability test of the core creation test, and I hope they can help you. Shenzhen Chuangxin Online Testing Technology Co., Ltd. is a well-known professional testing institution for electronic components in China, with 3 standardized laboratories covering an area of more than 1000 square meters. The scope of testing services covers: testing and verification of electronic components, IC authenticity identification, material selection for product design, failure analysis, function testing, factory incoming material inspection, X-ray testing of components and parts, tape braiding and other testing items.