Construction preparation for laying PVC floor
1. Before laying the floor, the PVC floor should be spread for at least 24 hours at the ambient temperature above 18 degrees, in order to remove the stress in the material.
2. First of all, the construction tools should be ready: check the operation of the main mechanical equipment and power consumption, arrange the construction power supply, water source. Imported tools should not be mixed with other power tools with a wiring board, and must be equipped with voltage regulators and power protection devices. Avoid excessive current, resulting in the machine can not work normally, delay the construction period. Check the situation of various types of hand tools such as wood cutting knife, slotted knife, seam cutter, the use of tools such as scraping plate, pressure rubber roller surface is clean and smooth, replace the loss of accessories such as not up to the emergency use standard, in order to ensure construction quality.
3. Coating interface agent; self leveling construction after the surface may have tiny particles and dust, these cases need further treatment for grinding precision leveling machine, will remain difficult to remove part of the dust in the ground after fine grinding, again applying a water interface agent, the purpose of which is to a closed self leveling surface the tiny pores and dust, making it a smooth surface to improve the bonding effect, avoid the construction after the floor played drums and degumming.
4. Check the construction environment: before laying the floor should check the temperature of the construction site, the construction room temperature is not less than 18 degrees Celsius, the relative humidity of the air can not be greater than 75%. Adequate ventilation in the work area should be maintained, and the contaminants should not enter the rest of the building.
Placing materials: before construction, the PVC coil floor must be spread out on the flat floor, and then it will be restored to the level, lost material stress, placed in the room to be coated adhesive. Reasonable arrangement of cutting area, to ensure that the cutting area dust-free, no sand. Transport and transport of materials for the use of special transport, transportation and transportation process of damaged floor should be opened before the plastic cutting edge cutter, can not be used
Measurement and tailoring of PVC flooring
Basic requirements: according to the design scheme of laying by measuring two combination of measured size error, according to the design scheme in line laying, laying the floor outline of the ink line box pops up. According to the contour cutting, the proper placement of welding line and pattern layout, to minimize the loss of material.
Cutting material must be specially assigned;
If the floor has directional pattern, it must always pay attention to the consistency of its direction;
Accurate data must be obtained from each site during each cutting;
Pay attention to each material must be kept between 2-3 centimeters margin.
PVC floor laying and seam handling
Basic practices and requirements: using adhesive to PVC floor uniform and firm bonding on the floor, the floor overlap part into a little gap stitching, gap should be within 0.2-0.5mm.
In accordance with the construction standard and the glue glue dosage are evenly distributed to the surface by frictioning bar.
Laying method of PVC floor:
The first floor sheet ground floor flat on the ground, more than 8 meters distance laying the floor shall be divided into two period of laying. Then the floor side rolled up, rolled on the ground in the glue scraping evenly, until the viscosity of solvent containing glue on the ground to produce the volatile after then paste, paste in the hand to the floor to the same direction of pushing on the glue on the floor can not let the air inside. Glue volatilization time changed according to the construction temperature change, such as in the room temperature of 20 degrees Celsius, the glue volatile time of 30 minutes, the white glue into Anti transparent, do not have a strong cohesive touch frictioning surface by hand, then can paste. Timely pasting ensures the floor free of bubbles and drums. Using the same method, the other half is stuck with the drum around the floor and the ground will be fully compacted; so as to make the glue and the floor more closely bonded together with pressure rubber roller rolling will in turn. If the air bubble needs cork or hand push out, after cleaning the ground, 24 hours with welding torch welding seam.
Brushing the cross section agent on the surface of self leveling cement is an effective way to control the floor heave. Floor drum is the main cause of surface dust and other unclean residues affect bonding effect produced by the most effective way to the surface of the base uniform coating interface agent can effectively prevent the drum surface.
Slotting and welding
Basic requirements: weld should be straight, smooth, no cracks, no focal spot, no welding, and the whole floor in the sense of color on the integration.
1. Thermal fusion welding: a professional floor welding tool shall be used for thermal welding. The machine is specially designed for welding PVC, rubber and linen floors. Different floor materials with different welding temperatures, such as PVC or rubber floor, have the upper limit area of the thermal welding temperature. Correct and standard operation can ensure the perfect welding of floor and achieve the best laying effect.
(1) Welding speed and temperature standard:
Welding PVC floor welding machine walking speed should be 3.5 meters per minute to 5 meters, the temperature should be controlled between 500 degrees to 600 degrees. Welding rubber floor and linen floor welding machine walking speed should be 3 meters per minute to 3.4 meters, the temperature should be controlled between 400 degrees to 450 degrees. If there is a tiny bead on the surface of the floor and the electrode, it indicates that the electrode and floor have been welded.
(2) Preparation for slotting:
The floor weld must be opened with a groove that can hold the electrode before welding. The groove depth should be less than 2/3 of the floor thickness. If 4 mm electrode is used, the groove depth shall be less than 1.8 mm. A slotted knife out if the depth is greater than 1.8 mm, will affect the bilateral welding effect, and may form two black belt in the floor surface and the electrode contact, if this happens, please will be reduced to 1.3 mm depth of grooves.
(3) Preheating of welding torch:
Before welding, preheat the heat welding gun to the maximum power. Before the operation, the hot gas flows to the side and will not guide the floor through the nozzle. This prevents the floor from being scorched by excessive heating.
(4) Floor welding:
The slot slot in the glue and remove dust, welding to the proper temperature, hot air to be stable after welding line into the fast welding nozzle, constant, uniform welding; welding finished half an hour after the welding groove of the sliding plate with the crescent blade will wire out of the ground part two times out.
(5) Leveling of welding rod:
After the welding is completed in about 10-15 minutes, with a crescent blade with two steps will be protruding electrode repair flat, the crescent shovel knife in Hsiuping guide plate electrode will eradicate, this step is completed, there is a 0.5 mm thick electrode protruding surface of the floor, and then with the shovel in the remaining part of Hsiuping, such amendments the joint will be flat after perfect.
2. Polyvinyl chloride cold welding technology: the surface structure of PVC floor, wallpaper and other joints welding.
(1) with A+ (cold cold liquid nozzle matte type):
Suitable for welding PVC floor, wallpaper and surface structure of polyvinyl chloride fiber, resin board neat, narrow seam. The use of metal needle nozzle on the A can be connected to the clean and beautiful seam. The construction is to be labeled with textured paper at the seams, and then with the joint will be textured paper cut, then the cold liquid evenly over the floor seam in about 20 minutes can be textured paper. Ten minutes later, people can walk on it. About a little while, the welding fluid will be completely solidified, and the joints will not be easily detected. Advantages: waterproof and dirty, joint not shrink, not convex. No gloss can be accurately adjusted cold liquid, in order to meet the needs of a variety of PVC floor.
(2) C+ coldwelding nozzle (no gloss) cold cream:
A wide seam for welding PVC floors, wallpaper, and seams for repairing the widest 4mm seams. It is also suitable for welding seams between PVC corner wall and wall and floor. In wet places, such as hospitals, laboratories, with cold cream solder joint effect between the wall and floor edge is most obvious, after welding can be done without water. Should pay attention to cold cream in use for room temperature at 18 DEG C. If you need cold cream also can be matched with the specific color