Specifications

solar vacuum tube
1) high quality and reasonable price
2) environmental friendly
3) nice design
4) ISO9001:2000

The technical process of solar vacuum tube :       

1. Incision    

  

Raw  material               

                                             

To make the outer tube and inner tube seal at one side,to make the ragged edge neat and ordered

 

                                   

2.Clean the inner tube :the worker must wear the gloves to clean the inner tube with water machine to make the film plating more efficient.

 

             

3.Put the holder : putting the spring holder into the outer tube to fix the inner tube .

                                     

           

4.Film plating : at least 40 to 60 minutes

  Adding the absorptance material onto the inner tube .

                          Coating machine

        

5.Sealing and test : seal the inner tube and outer tube ,then test if the seal perfect .

        

    Test          

  6. Vacuum : To make the tube vacuum

  

 7. Test : testing if the solar vacuum tube is available or work efficiently .

         

8.clean and laser logo

    

              

9. packing

          

10. finished product