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Environmental Test Chambers for IPC-TM-650

Environmental Test Chambers for IPC-TM-650 2.6.6 : Temperature cycling, printed wiring board
 
This standard tests the temperature cycling of printed wiring board, so it is necessary for a environmental test chamber which can meet the specific temperature requirement.

 
This test is conducted for the purpose of determining the resistance of a material such as a laminate or multilayer circuit board, to the shock of repeated exposures to extremes of high and low temperatures for comparatively short periods of time.  
 
This test specimen for this test shall be a sheet of laminate material at least 6 inch × 6 inch by the thickness of the laminate. In the case of multilayer boards, the test specimen shall be the entire qualification specimen detailed in prat 5.8.4 of this publication.

A chamber automatic temperature cycling equipment suitable for the temperature extremes specified herein. The air temperature shall be maintained by forced air circulation. The chamber shall have sufficient heating or cooling capacity to maintain the specified air temperature.
 
During the exposures, maintain the chamber at the temperatures shown below:

 
 
The test specimen must be cleaned of dirt, grease, and other contaminants prior to the thermal exposures. The test specimen should be cleaned by wiping with a dry, clean lint-free cloth, or wiped with a clean lint-free cloth dampened with acetone or isopropyl alcohol. The specimen must be allowed to air dry prior to thermal exposure.
 
The test specimen must be placed in the thermal chamber maintained at the temperature specified in Step 1 for the appropriate test condition. The test specimen must be maintained at each temperature in the order specified.
 
Through calculation, we can see the ramp up and down rate both are exceed 2℃/min.
Our rapid temperature change test chamber meet this rate.

 
 
The difference of high and low temperature test chamber and rapid temperature test chamber is the ramp up and down rate.
The ramp up rate of high and low temperature test chamber is 1-3℃/min.
The ramp up rate of rapid temperature test chamber is 5℃/min.

The ramp down rate of high and low temperature test chamber is 0.7-1℃/min.
The ramp down rate of rapid temperature test chamber is 5℃/min.
If you have any questions, please contact us.
 
All the time, the world's products are developing diversely. However, one thing can be true. Even your products no matter how many styles, but not good quality, all this will become nothing. Fortunately, the rapid temperature test chamber made by Shanghai linpin instrument equipment co., ltd. can take your product into the "safe" area.
 
First, it can explore and determine the impact of single or multiple environmental factors on products, and assess the environmental adaptability of products. Secondly, it can be used as the decision basis of product acceptance or rejection to see whether it meets the specified environmental requirements and accurately analyze the qualified rate of products.
 
There's no doubt that no one would think of this more functional rapid temperature test chamber as an outlandish product from science fiction. Caused due to the different environment, on the other hand, the product didn't play performance, and high and low temperature test chamber can be repeated testing product performance under the changing condition of temperature. High and low temperature resistance, aging resistance, dust-proof, waterproof performance, and so on were welcomed by the ensuing fields, such as aerospace products, information electronic instruments and meters.
 
Secondly, they went deep into the market of materials and electricians. Just like the cell phone that people use now, it becomes a necessity of the current product. Shanghai linpin environmental temperature test chamber is more practical and ubiquitous environmental testing chamber, so it is more suitable to play the role of product assistant.
 
Shanghai Linpin Instrument Stock CO., Ltd. has focused on researching development and production of high quality environmental test chamber, diligence, innovation, professional (excellent technology, excellent quality, good service and good price) of the business philosophy, for the majority of customers with environmental protection and testing requirements. We also provide continuous real-time professional after-sales service to meet the demand of IT industry. At the same time, it is praised as "top 20 brand of instrument", and a domestic test chamber manufacturer focusing on the design and manufacture of environmental test equipment with global quality.
 
According to the specific situation of different customers, Shanghai Linpin company adopts different service methods to strengthen the communication between the company and users and enhance customer loyalty. Although the natural environment changes myriad, but what’s forever is the sincere service for user.
 
For more details, please feel free to contact sales@lenpure.com
Please visit www.c1551.com

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