The vacuum drying oven is suitable for heat treatment in vacuum conditions such as defoaming, dehydration, hardening and drying after cleaning in the production process of electronic products. It is especially suitable for fast and efficient drying of heat sensitive, easily decomposable, oxidizable substances and complex components. Drying treatment.
Vacuum drying oven operation method:
1. The items to be dried are placed in a vacuum drying box, the door is closed, the vent valve is closed, the vacuum valve is opened, the vacuum pump is turned on, and the vacuum is turned on, so that the vacuum in the box reaches -0.1 MPa, the vacuum is turned off. Valve, then turn off the vacuum pump power.
2. Turn the vacuum oven power switch to the “on†position, select the desired set temperature, and the temperature inside the box will start to rise. When the temperature inside the box is close to the set temperature, the heating indicator will be turned on and off repeatedly. , generally within 120min can enter the constant temperature state.
3. When the required working temperature is low, the secondary setting method can be used. For example, the required temperature is 60 °C, the first time can be set to 50 °C, and the temperature overshoot starts to fall back, and then the second time is set to 60. °C. This can reduce or even eliminate the temperature overshoot phenomenon and enter the constant temperature state as soon as possible.
4, according to the degree of moisture of different items, choose different drying time, such as long drying time, the vacuum is reduced, need to pump again to restore the vacuum, should first open the vacuum pump power, and then open the vacuum valve.
5. After the drying is finished, the power of the drying box should be turned off, the air release valve should be opened, the vacuum state inside the box should be released, and then the box door should be opened to take out the items. After the vacuum is released, if the sealing ring and the glass door are tightly deformed, it is not easy to open the door immediately. After a period of time, after the sealing ring is restored to the original shape, the door can be opened easily.
Geogrid
Geogrid
The Geogrid including Polyester Geogrid, Fiberglass Geogrid, Steel Plastic Composite Geogrid and Plastic Geogrid.
The geogrid is a major geosynthetic material. Compared to other geosynthetic materials, it has unique performance and efficacy. Commonly used for reinforcement of soil structure or reinforcement of composite materials.
The uses of geogrid: It is suitable for embankment and embankment reinforcement slope protection tunnel wall reinforcement large airport parking lot wharf cargo yard and other permanent bearing foundation reinforcement.
The feature of geogrid:
The high strength creep can adapt to all kinds of environment soil, and can satisfy the use of high grade highway retaining wall.
It can effectively improve the locking and occlusion of the reinforced bearing surface, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil, and enhance the stability of the foundation.
More suitable for deep-sea operations, embankment reinforcement, fundamentally solve the other materials do stone cage due to long-term erosion by the sea caused by low strength, poor corrosion resistance, short service life and other technical problems.
It can effectively avoid the construction damage caused by the crushing and destruction of machinery and tools in the construction process.
Steel Plastic Geogrid,Polypropylene Geogrid,Stretch Plastic Geogrid,Biaxial Plastic Geogrid
ANPING COUNTY SHANGCHEN WIREMESH PRODUCTS CO.,LTD , https://www.scwpwiremesh.com