Rust Proof Environmental Stress Screening Chamber , Temperature Cycling Chamber

Environmental Rapid Rate ESS Chamber Temperature Cycling Chamber

Average vs. Linear Temperature Transitions

In the earlier days of ESS, environmental chambers offered air temperature cycling transition rates on the order of 5°C per minute. This transition rate was often referred to as "average" by most chamber manufacturers. In reality, during an average rate temperature transition, the

air temperature rate of change may vary greatly from the average rate.

For temperature pulldowns with mechanical cooling, dT/dt will be much greater than the average in the early stages of the pulldown and much below the average as the low temperature extreme is approached. When plotted out, the time/temperature relationship is a curve with a steeper slope at the beginning of the pulldown and a flatter slope at the end, but nevertheless resulting in some average transition rate for the complete pulldown.

1. Overview of Environmental Test Chamber:

Developed to help electronics manufacturers detect product defects and production flaws, ESS is widely used in military and aerospace applications, less so for commercial products. The tests need not be elaborate, for example, switching an electronic or electrical system on and off a few times may be enough to catch some simple defects that would otherwise be encountered by the end user very soon after the product was first used. Tests typically include the following:

• Temperature variations
• Vibration tests
• Pressure
• Flexibility tests

Such a chamber can be used:
1) as a stand-alone test for environmental effects on test specimens
2) as preparation of test specimens for further physical tests or chemical tests
3) as environmental conditions for conducting testing of specimens
4) Temperature adaptability test under the condition of rapid change, or gradient for electrical, electronic, instruments and other products or spare parts, particularly applies to environmental stress screening test(ESS)




2. What Is Environmental stress screening (ESS)

ESS refers to the process of exposing a newly manufactured or repaired product or component (typically electronic) to stresses such as thermal cycling and vibration in order to force latent defects to manifest themselves by permanent or catastrophic failure during the screening process. The surviving population, upon completion of screening, can be assumed to have a higher reliability than a similar unscreened population



3. Standards Implemented and Met

GB10592-89 Technical requirements for high and low temperature test chamber
GB2423.1-1989 Low temperature test
GB2423.2-1989 High temperature test mode

Product Catalog:

Rapid Temperature Change Test Chamber.pdf

SANWOOD PRODUCTION

SANWOOD Environmental Chambers was established in 1995, which integrated Taiwan and Japan technologies. We have been focus on the most secure and reliable climatic test chamber technology since established.

OUR EXHIBITION

Our products upgrade constantly and our customers come portable batteries, power batteries, battery, lithium batteries, lead-acid, new energy vehicles, electric bicycles, electric tools, electric systems, solar, military, universities research and other technology industries fields.

CUSTOMER WITNESS

Products are exported to more than 60 countries, such as Russia, Singapore, the United States, Turkey, Denmark, Vietnam, India, Malaysia, Kazakhstan, Austria, Canada, etc.

SANWOOD CULTURE

Sanwood thrived little by little and aims to become the leading brand in the safety and reliability environmental test equipment industry all over the worldber.

Guangdong Sanwood Technology Co., Ltd, founded at 1995, with 25 years manufacturing experience, we are now engaging 100+ workers and 20+ engineers (structure, refrigerant, assembly, quality control, pre-tests), 2 production lines with facility 6,000+ square meters, monthly capability reaches to 120 units which makes annual production capability more than 1,000 units. Products cover the full range of battery cells, modules and packs or even the whole automobile to run the environmental reliability tests.

Achieved national high enterprise reward, certified with ISO9001:2015, ISO14001:2015 and CE certificate, our products are exporting to more than 60 countries and regions, cooperated with top manufacturers in the EV lithium-ion battery industry such as ATL, BYD, CATL, Envision AESC, Farasis, Lishen, Sunwoda, Svolt and major playes in the European markets.

Customer service is as important as product quality, we are planning to build our European sales & service center to further iron our instant and efficient after-sales services for our clients.

Sanwood, born to provide high quality products! Leave us a message or give us a call TODAY to propose you a tailored test solutions.