Reliability test classification method
1. If the reliability test is divided by environmental conditions, it can be divided into simulation test and field test under various stress conditions;
2. The reliability test is divided into test items and can be divided into environmental test, life test, accelerated test and various special tests;
3. If the reliability laboratory is divided according to the purpose of the test, it can be divided into screening test, identification test and acceptance test;
4. Reliability tests, if classified according to the nature of the test, can also be divided into two categories: destructive tests and non-destructive tests.
5. But the usual classification of the reliability test is to classify it into five categories:
A. Environmental test B. Life test C. Screen test D. Field use test E. Identification test
Reliability test project
The reliability test is an activity to ensure that the product maintains functional reliability under all expected environments of use, transportation or storage within a specified life span.
The reliability test is to expose the product to its natural or artificial environmental conditions to evaluate its performance under actual environmental conditions of use, transportation and storage. The reliability laboratory analyzes the impact of environmental factors and Its mechanism of action.
Reliability testing accelerates the state of the reaction product in the use environment by using various environmental test equipment to simulate high temperature, low temperature, high temperature and high humidity and temperature changes in the climate environment.
The Environmental Reliability and Electromagnetic Compatibility Test Center (Test 114 Test Facility) verifies that it meets the quality objectives expected in R&D, design, and manufacturing, and the Reliability Laboratory evaluates the product as a whole to determine the product reliability life.
The Beijing Reliability Lab divides reliability testing into two major parts: mechanical and environmental.
The environmental tests, reliability test items and test standards that can be implemented are as follows:
1. Climate environment test (GB2423, GJB150A, GJB4, IEC60068, GJB1032, GJB322A, GJB360A, GJB548, GB4208, GJB899, TB3021, etc.)
A. Temperature test: high temperature test, low temperature test, temperature shock test, temperature change test, rapid temperature change test (temperature change rate up to 15 degrees / min), high temperature aging test, temperature cycle test.
B. Humidity (wet) test: constant damp heat test, alternating damp heat test, high temperature and high humidity test (double 85 test, double 95 test);
C. Shell protection level test: IP42, IP44, P54, IP55, IP65, IP66, IP67, IP68 protection level certification and testing services;
D. Three-proof test: salt spray corrosion test (neutral salt spray test, alternating salt spray test, acid salt spray test), damp heat test (constant damp heat, alternating damp heat), mold test (mold test, mold test) ;
E. Special tests: low air pressure test (altitude altitude test), high air pressure test, solar radiation test, rain test, sand dust test, etc.
2. Mechanical environment test (GB2423, GJB150A, GJB4, IEC60068, GJB1032, GJB322A, GJB360A, GJB548, TB3058, GJB899, GB/T21563, ISO16750, etc.)
A. Vibration test: sinusoidal vibration test (sweep frequency endurance test), random vibration test, wideband random vibration test, narrowband random vibration test, sine + random stack test;
B. Impact test: half sine wave mechanical impact test, post-peak sawtooth wave impact, impact response spectrum test;
C. Other tests: drop test (free fall, repeated drop), crash test, acceleration test, etc.
3. Comprehensive environmental reliability test (GB2423, GJB150AGJB899, etc.)
A. Temperature and humidity combination test, temperature + humidity + vibration comprehensive test (three comprehensive test)
Test standards for electronic, electrical, electrical, railway locomotive and military equipment (environmental testing):
According to domestic and international standards, it provides various environmental and reliability tests such as photoaging test, temperature and humidity test, gas corrosion test, mechanical vibration test, mechanical impact test, crash test and drop test, dustproof and waterproof test, and packaging pressure test. Most projects of climate environmental testing, mechanical environmental testing and comprehensive environmental testing can meet GJB, GB, GB/T, IEC, ISO, EN, MIL-STD, SAE, ASTM, ISTA, JIS, IPC, JEDEC, GM , NISSAN and other international and domestic environmental and reliability test standards, while meeting the relevant military standards.
The National Key Laboratory Accreditation (CNAS) and China Metrology Accreditation (CMA) accreditation, the reliability laboratory provides stereotype testing or bottoming test for military and civilian product manufacturers. Reliable marginal testing customers involved in aerospace, marine, industrial control, railway, electric power, instrumentation, fire, automotive and other industries.
The test was carried out in accordance with the requirements of ISO/IEC 17025:2005 "General Requirements for Testing and Calibration Laboratory Capabilities" (CNAS-CL01) "Guidelines for Accreditation of Test and Calibration Laboratories".
Hongzhan has a research institute specializing in the research and development of environmental test equipment. It has mature loop test development methods and laboratories, and gathers a group of outstanding talents and well-known experts in the industry. The strong R&D team leads the domestic loop test technology. Development direction. At present, the company has high and low temperature test chambers with independent intellectual property rights, high and low temperature wet heat test chambers, rapid temperature change test chambers, thermal shock test chambers, three comprehensive test chambers, high and low temperature low pressure test chambers, solar radiation test chambers. The climatic environment test equipment and customized products such as industrial ovens and walk-in high and low temperature damp heat test chambers and high wind speed rain test chambers are at the leading domestic level and international high standards.
Lathing is a method of cutting the workpiece on the lathe by rotating the workpiece relative to the tool. Use the rotary motion of the workpiece and the linear or curved motion of the tool to change the shape and size of the blank, and process it to meet the requirements of the drawing. Lathing is the most basic and common cutting method, and it occupies a very important position in production. Lathing is suitable for machining revolving surfaces. Most workpieces with revolving surfaces can be processed by lathing methods, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end faces, grooves, threads, and revolving forming surfaces.
Our company has rich experience in the production of lathed parts. We can produce the parts of high-precision, the parts of medium-precision, and the parts with low-precision. Only a few of our existing products are listed below. If you have any needs for lathing parts, please feel free to contact us. We are confident to provide the product with high-quality, reasonable prices, and the best services.
Aluminum Motor Hub
This part is a connector on the motor shaft, which is used on a high-speed motor. It is processed by a CNC lathe. The material is Aluminum. The part is with smooth surfaces, lightweight, and high strength. This part belongs to high-precision lathing parts.
Knurled Steel Nut
This part is a medium precision lathing part. It is a round nut
with knurling on the periphery and threaded holes in the center hole. The
material is carbon steel with electroplating. The material can also be
stainless steel, Aluminum, brass, or copper. This kind of part is widely used
in machinery equipment and household products. It belongs to the more commonly
used lathing parts.
Lathed Aluminum Flange
This part is used for connection and sealing between structural
parts. The shape of the part is a ring with four small round holes. This part
is also a commonly used structural part, and the material can be Aluminum,
carbon steel, or stainless steel. The dimensional accuracy can be processed
according to customer requirements.
Aluminum Alloy Bushing
The part is a funnel-shaped Aluminum tube. The big end is a
threaded hole. It can be assembled between two circular parts with different
diameters to play a connection role. The material of this part is Aluminum,
which is light in weight and anti-oxidation.
Hexagonal Brass Shaft
This hexagonal copper shaft is often used for the installation
of electronic circuit boards and control boards. Its material is copper. One
end is a stud and the other end is a threaded hole. The machining accuracy of
this part is relatively low.
Aluminum Alloy Bushing, Aluminum Motor Hub, Knurled Steel Nut, Hexagonal Brass Shaft, Lathed Aluminum Flange
YRX Technology (Shenzhen) Co., Ltd. , https://www.yrx-tech.com