Links: Knowledge of Building Materials: Classification and Selection of Luminaires
table lamp
1. Features
Lamps are made of ceramics, wooden lamps, wrought iron lamps, bronze lamps, and so on. They are divided into eye protection desk lamps, decorative desk lamps, work desk lamps, etc., and light bulbs, plug lamps, and lamp beacon lamps.
2, choose
Select the table lamp mainly to see the quality of electronic components and production processes, generally small manufacturers of table lamps, electronic parts quality is poor, the production process is low, so consumers want to choose large manufacturers of table lamps. General living room, bedroom and other decorative table lamp, table, desk with energy-saving eye protection desk lamp, but energy-saving lamps can not be dimmed.
Lamps and lanterns to buy living room lighting brand decoration bedroom bedroom bedroom lamp
1. Correct selection of teeth
1) Before use, confirm whether the mechanical properties of the product meet the customer's requirements (such as the tensile strength of the Bolt and the safe load of the nut).
2) The length of the bolt should be selected properly, with 1-2 pitch exposed after tightening.
3) Before use, the thread should be kept clean.
2. How to use dental strips correctly
1) When tightening the teeth, pay attention to that the direction of force applied by the wrench should coincide with the axis of the screw, and do not tilt.
2) In the process of tightening, the force should not exceed the safety torque, and should be uniform. Try to use the torque wrench or socket.
3) Locking too fast will lead to locking, it is recommended not to use electric or pneumatic wrench.
4) Keep the thread clean. In order to ensure the smooth fit of screw and nut, it is recommended to put the product in a clean container and do not place it at will.
3. Standard of tooth bar maintenance
1) If there is slight damage to the removed tooth, screw and nut, the die and tap shall be used for repair.
2) The removed and repaired teeth, Screws and Nuts shall be maintained by means of oil bubble or lubricating oil, and shall be placed in order according to specifications, models and purposes.
4. Scrap standard
The bolts with obvious crack, broken thread, sliding, disorderly thread, screw tensile deformation, shear trace, etc. which can not be repaired by the on-site leader can be scrapped.
5. Specification parameters of tooth strips
Texture of material:
304/316
Product standard:
DIN975
Surface treatment:
turn into a good guy
Threaded Rods,Full Thread Rod Bolt,Hexagon Socketthread Rod Bolt,Stainless Steel Thread Rod Bolt
Suzhou Gubao Screws Co.,Ltd. , https://www.gbscrewes.com