Villa design aisle ceiling cement
Taps and dies are tools used to create purpose screw threads, which is called threading. Many are cutting tools; others are forming tools. A tap is used to cut or form the female portion of the mating pair (e.g. a nut). A die is used to cut or form the male portion of the mating pair (e.g. a bolt). The process of cutting or forming threads using a tap is called tapping, whereas the process using a die is called threading. Drill And Tap Set,Hand Tap And Die,Cutting Tool Sets,Hand Tap Wrench Behappy Crafts (suzhou)Co.,Ltd , https://www.haoyuebehappy.com
1 The plate should be installed in a free state. It should be fixed from the middle of the plate to the periphery of the plate when fixing.
2 The distance between the paperboard gypsum board screw and the edge of the board: The paper edge should be 10~15mm, the cutting edge should be 15~20mm, and the distance between the cement compression board screw and the board edge should be 8~15mm.
3 The peripheral nail pitch of the board should be 150-170mm, and the nail pitch in the board should not be greater than 200mm.
4 When installing a double gypsum board, the seams of the upper and lower decks should be staggered and must not be jointed on the same keel.
5 screw head should be slightly buried board surface, and shall not make the paper surface damage. The nail holes should be treated with rust and smoothed with putty.
6 The joints of gypsum board should be processed according to the design requirements.
Using an ordinary tap or die to clean threads generally removes some material, which results in looser, weaker threads. Because of this, machinists generally clean threads with special taps and dies-called chasers-made for that purpose.
Ceiling construction specification
The type, specification and color of the materials used in the ceiling project shall meet the design requirements. Decorative panels, metal keel should have product certification. The moisture content of wood hangers and wood keels should comply with the relevant provisions of the current national standards. The surface of the veneer should be flat, the edges should be neat and the colors should be the same. The hole spacing of perforated plates should be arranged neatly; plywood, wood fiberboard, and large core plates should not be degummed and discolored.