Precautions for door and window construction:

1. Avoid common faults in engineering quality:

1) The door and window frame is not fixed well, and the levelness, verticality and diagonal length are out of tolerance. After the door and window frame is temporarily fixed, be careful not to make the door and window frame shift and tilt when filling the gap with the wall. Remove the positioning wedge or other appliances after the door and window frame is installed and fixed firmly.

2) Corrosion discoloration on the surface of aluminum-plastic doors and windows: during construction, strictly protect the products, timely repair and seal the damaged protective adhesive tape and film, and timely remove the mortar dirt splashed on the surface of aluminum-plastic doors and windows.

3) The glass sealing strip of the door and window sash falls off: the matching of the glass thickness with the dimensions of the embedded groove and sealing strip of the sash should meet the national standards and design requirements, and the expansion allowance should be reserved when installing the sealing strip.

4) scratches on the surfaces of doors and windows: when cleaning the surfaces of aluminum-plastic doors and windows with tools, it is not allowed to scratch or cut the surfaces of aluminum-plastic aluminum profiles.

5) untidy appearance: the dirt and dust traces on the surfaces of doors and windows should be cleaned with special solvents or clean water and cotton yarn, and the excess glue traces filled with sealant should be cleaned up to ensure that the surfaces of finished aluminum-plastic doors and windows are neat and beautiful.

2. Main safety technical measures:

1) Safety protection articles and measures:

A) Installation personnel of aluminum-plastic doors and windows must wear safety helmets and non-slip work shoes when entering the construction site. Slippers or barefoot are strictly prohibited.

B) For outdoor installation of aluminum-plastic doors and windows at high altitude, there must be safety nets, protective railings and other protective facilities, and the safety belt must be fastened when working at heights.

2) Construction machines and tools:

A) Class II hand-held power tools must be selected for electric screwdrivers, hand drills, impact drills and jigsaw saws, and the Safety Technical Regulations for Management, Use, Inspection and Maintenance of Hand-held Power Tools shall be strictly observed; The field use shall conform to the provisions of "Hand-held Power Tools" in Technical Specifications for Temporary Electricity Use in Construction Sites to ensure the safety of use.

3) Shooting:

A) Operators should be trained, operate in strict accordance with prescribed procedures, wear protective glasses when working, and it is forbidden to point the gun at people.

B) Nail-shooting bullets should be handled, stored and used according to the regulations on explosion and dangerous goods. The storage environment should be clean, dry and well ventilated, and the temperature should not be higher than 41 degrees. Do not touch the wall, bake with fire or heat the nail bombs at high temperature, and the duds shall not be littered anywhere.

C) The wall must be firm, solid and have the rigidity to bear the impact of shooting. When shooting nails on thin walls and light walls, there must be no one on the other side of the wall to prevent people from being hurt.

D) Special steel nails: heavy hammers should be used to nail special steel nails, and operators should wear protective glasses. In order to prevent the steel nail from jumping and hurting people, you can clamp it with pliers and knock again.

4) Handling and installation of the glass:

A) Before handling the glass, first check whether there are cracks in the glass, especially pay attention to dark cracks, and then carry it after confirming that it is in good condition.

B) gloves and long-sleeved shirts must be worn when handling the glass, and the glass should be vertical, so as to prevent the sharp edge of the glass from cutting hands or hurting people.

C) When installing glass in high places, it should be placed safely, and no one can be under it vertically.

D) when it is difficult to control the glass when the wind force is above level 5, it is necessary to stop carrying and installing the glass.

3. Cleaning of doors and windows:

1) When cleaning doors and windows with washing water, the room should be well ventilated, wear a mask, no smoking, no kindling around, and cotton gauze stained with washing water should be collected in a metal container for timely treatment.

2) product protection:

A) aluminum-plastic aluminum doors and windows should be properly bundled during transportation, and they should be separated by non-metallic soft materials. When lifting, a firm and stable focus should be selected to prevent the doors and windows from wearing each other, squeezing and distorting, and damaging accessories.

B) Aluminum-plastic aluminum doors and windows should be vertically discharged indoors after entering the construction site, and the products should not touch the ground. Sleepers should be used to level them above 111mm above the ground. It is forbidden to store them with acid and alkaline materials, and the room should be clean, dry and ventilated.

C) After the aluminum-plastic doors and windows are put into the hole and temporarily fixed, check whether the surrounding frames and intermediate frames are constructed with specified protective adhesive tape and plastic thin seal, so as to prevent cement mortar, grey water and spraying materials from fouling the surfaces of aluminum-plastic doors and windows. Before the indoor and outdoor wet work is completed, the surface protection materials of doors and windows shall not be destroyed.

D) during welding operations, measures should be taken to prevent welding sparks from damaging the surrounding aluminum-plastic aluminum doors and windows profiles, glass and other materials.

E) It is forbidden to trample aluminum-plastic doors and windows. Scaffolds and heavy objects shall not be placed on the frames of aluminum-plastic doors and windows. Doors and holes frequented should be protected with boards in time. It is forbidden to touch aluminum-plastic doors and windows to prevent deformation and damage of doors and windows.

F) When cleaning aluminum-plastic doors and windows, the protective adhesive tape should be properly peeled off, and the oxide film on the aluminum-plastic surface should not be scratched or scratched.