If the ceiling gypsum board is cracked, it will not only affect the appearance, but also may fall, threatening the personal safety of the owner. In the complaints related to home decoration, cracking of partition walls and ceiling panels is a very prominent problem. Experts remind consumers that the installation of gypsum board is also very important. Never let the workers be careless in this link, so as to avoid unnecessary trouble. Improper practice 1. When the ceiling elevation is the same as the beam bottom elevation, the gypsum board does not pass through the beam bottom, which will result in high maintenance rate and inconvenience. Because the ceiling elevation is the same as the height of the beam bottom, the gypsum board does not pass through the bottom of the beam, which will cause the two different materials of the gypsum board and the beam bottom to form an interface. This interface will be used due to the temperature difference and the expansion and contraction of different materials. The deformation produces cracks. If the post-processing is not proper, the crack will crack repeatedly, which brings a lot of inconvenience to the owner's life. 2. The gypsum board at the corner of the suspended gypsum board is not covered with L whole plate, and it is easy to shrink and produce cracks. When the wooden keel ceiling is used to seal the gypsum board at the corner, if the L whole board is not used for construction, the bottom gypsum board will have seams at the corners, which will cause cracks due to the interface of the base material and the easy shrinkage of the material. Correct practice 1. When the ceiling elevation is the same as the beam bottom elevation, the gypsum board must pass through the beam bottom. The advantage of this is that there is no interface, which will effectively reduce the joint and prevent cracks. In addition, when the ceiling elevation and the beam parallel opening are treated, the gypsum board should pass through the lower part of the beam and the side of the beam. Leave the slats on the sides and prevent the seams from being present on the bottom plate, which will reduce cracks and maintenance. 2. The gypsum board is sealed with L-shaped at the corner of the ceiling of the wooden keel to prevent the formation of cracks. The wooden keel ceiling is constructed with L whole plate when sealing the gypsum board at the corner. The bottom gypsum board is a whole plate of shape L at the corner, leaving the seam on both sides of the ceiling and making the joint into a figure-eight shape, then Lafarge or gypsum powder is filled in the joint to effectively control the crack. According to Modern Express Product introduction
CH3093 type Carbon Deoxidizer directly deoxidized by combustion method,
the heating temperature under 260 ℃ ~ 320 ℃ condition, oxygen content
can be 0.1% ~ 0.2% of nitrogen gas through CH3093 heating combustion
type carbon deoxidizer, make nitrogen oxygen and deoxidizer carbon
oxidation (burning) generated containing trace amounts of carbon dioxide
(< 1 PPM/M3) of high purity nitrogen (99.9995%).
CH3093 type carbon deoxidizer is applicable to the inert gas such as nitrogen type burning without hydrogenation corrosion in deoxidizer, can make the oxygen content (0.1%), nitrogen carrier gas through the carbon deoxidizer, purification processing device of purification CH3093 type carbon deoxidizer furnished without hydrogen, it not only high deoxidization depth (residual O2 1 PPM or less), great capacity of DNA (1.2 ~ 1.6 M3), and easy operation, reliable in performance.
Its characteristics require regular addition of deoxidizer.
Physical parameters of CH3093 carbon deoxidizer:
Feed gas 99.8 ~ 99.9%
Appearance of size ¢3.05mm±0.2mm
The heating temperature ℃ 280℃ ~ 350℃
Bulk density 500~520kg/m³
Air speed ≥10000~15000n-1
The water content ≤0.05%
DNA capacity 1.2m³~1.6m³
Using the pressure 0.6mpa~0.8mpa
The residual rate of quantity ≤1ppm
The compressive strength ≥65NT
Raw material gas - heating combustion system - drying - filter - high purity nitrogen 99.9995%
CH3093 Carbon Deoxidizer CH3093 Carbon Deoxidizer,Deoxidizing Agent,Carbon Deoxidizer,Carbon Iron Deoxidizer Zhejiang Changxing Haihua Chemical Co.,Ltd. , http://www.zjcxhhcms.com
CH3093 Carbon Deoxidizer
Physical indicators of the project