The two-box temperature impact test chamber is divided into a high greenhouse and a low greenhouse. The box structure design adopts a unique heat-dissipation structure and a heat storage and cold storage effect. The test object is completely static during the test, and the cold and hot air flow switching mode will be cold. The hot temperature is introduced into the test zone to achieve the purpose of the thermal shock test. During the test, we may encounter that the test basket does not work. What is the reason for this phenomenon?
1. The temperature impact test box is blue card dead, open the test box door, and visually check whether the basket is stuck;
2, the pneumatic solenoid valve is damaged, the cylinder gas path can not be switched, the basket can only stay at the starting position, the cylinder is not sealed inside;
3. The external power supply is not supplied with gas or the pressure regulating valve is damaged;
4. The wire rope is loose or broken.
The two-box temperature impact test chamber meets the standard:
GB/T2423.1-2008 Environmental testing of electric and electronic products - Part 2: Test methods Test A: Low temperature
GB/T2423.2-2008 Environmental testing of electrical and electronic products - Part 2: Test methods Test B: High temperature
GB/T10592-2008 high and low temperature box technical conditions
GJB150.5A-2009 Environmental testing methods for military equipment - Part 5: Temperature impact test
GJB360A-1996 Method 107 Temperature Impact Test Requirements
GJB 360.7-1987 Test methods for electrical and electronic components - Temperature impact test
A floating shelf is a form of shelf with its wall fixings hidden within the shelf board, with no visible supporting brackets. It can be supported on hidden rods or bars that have been attached to studs. A thick floating shelf may be made of a hollow-core shelf glued to a cleat.
A floating shelf may have two or more channels open from the back towards, but without reaching, the front, into which slide fasteners attached to the wall, typically held in place by screws inserted through the bottom of the shelf.
For typical floating shelf supports, a supplier suggests that floating brackets with a diameter of 12mm can support a shelf at least 22mm thick loaded with 20kg, and 18mm brackets can support 30kg on a 28mm shelf.
This description is in reference to one particular type of floating shelf support, others options are available. Also not to be confused with corner shelves, which would require entirely different supports to make them "float".
Floating shelves are a good fit for a contemporary minimalist style interior.They can be used to expand storage space, atop a radiator to double as storage, or inside a hallway to double as a console table.
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