The quality of uPVC Profile products is counterfeit and inferior, and the installation is not smooth, causing the quality problems of plastic steel doors and windows to increase. At this stage, randomly assembled fake and inferior doors and windows are borrowed from well-known brands of profile materials, and problems such as large price differences, high water content, and non-standard installation of the same well-known brand have occurred. How should consumers choose plastic-steel doors and windows products and services?
Three methods of counterfeit and shoddy technical staff introduced in detail. In terms of product quality, the store must choose three methods to counterfeit and shoddy: one is to use new profiles, which were originally used to make doors and windows or to decorate partitions. Some agents are used to encapsulate living balconies for consumers. Because of insufficient compressive strength, product quality problems are very prone to occur; second, plastic-steel profiles that do not apply well, such plastic-steel profiles will be deformed during application. Problems such as cracking, slag drop and color fading; third, the doors and windows do not need to be lined with steel or thinned white iron and counterfeit lining steel, and assembly cannot ensure the overall quality of the doors and windows. In the installation of plastic steel doors and windows, there are countless problems caused by the construction team's non-standard actual operation. Such problems are mainly caused by the inattention of installation staff during the whole process of transportation, loading and unloading, and installation.
Therefore, the installation staff should handle with care during installation, and do not pry, shake or drop. Knock on the door frame with a plastic hammer slowly, never use a hammer to knock. Secondly, after the installation of doors and windows, skew occurs and the door leaf sliding door is not very good. This is mainly because the installation staff did not use the wire drop or ruler to check the flatness of the doors and windows and the road surface or cabinet countertops during the whole installation process. , Resulting in excessive error. Therefore, when installing doors and windows, you must follow the installation standards. The doors and windows are not standard. After the doors and windows are installed, one end is high and the other is low, and the gap between the fan and the frame is not symmetrical. Sometimes there are problems with the upper width and the lower width or the lower width and upper width.
Complications caused by free installation fees When buying doors and windows, consumers do not have to blindly pursue perfect raw materials and ignore the technical standards and weight of production, processing, installation, and service items. Plastic steel windows, thermally insulated aluminum alloy profiles, and pure solid wood windows are all environmentally friendly and energy-saving profiles. However, the products produced by different manufacturers are very different. Consumers choose only relatively raw materials for doors and windows, which will cause production. Manufacturers did not invest enough funds in installation and service projects.
In order to better attract consumers, some manufacturers have come up with the guise of exempting installation fees. In the field of doors and windows, there is a "three-point system, seven-point installation", and a large number of quality problems of door and window products are caused by installation. The installation fee is waived. This is actually a trap. If there is a problem, the manufacturer can say that it is an installation problem. I can avoid responsibility by collecting your installation fee. Therefore, as a consumer, not only do not pay attention to the exemption of installation fees, but also the installation of raw materials and installation labor costs should be established in the contract.
Observe "Yen" and "Color" to distinguish the appearance of plastic steel doors and windows should be bluish white, too white or gray, indicating that the material has insufficient stable ingredients, and it will become brittle and yellow over time; the surface should be smooth and tidy. Flat, no open welding cracks; special lining steel should be embedded in the door and window frames and fan profiles. The sealant strip should be flat, without rolling, no grooving, and the sealant strip should be colorless and tasteless. The hardware is flexible and smooth; the auxiliary materials such as decorative strips and seals of plastic steel doors and windows should be matched with the main profiles; the drainage outlets and standard air pressure equalization holes are produced and processed at overlapping parts to prevent the direct entry of air-conditioning and dust, and the assembly is relatively tight Part of the drainage pipe hole of the plastic steel window is equipped with a closed outer cover, which can prevent precipitation from being poured into the room from the hole; the laminated glass used for the plastic steel door and window should be leveled, free of wavy lines, installed firmly, and not in direct contact with the plastic profile. The sealing decorative strip is close to the gap. If there is a double-glass compartment, there should be no dust and water vapor in the compartment; there should be aluminum guide rails under the moving windows to facilitate its removal and replacement. Generally, double-acting pulleys are better than single-acting pulleys.
The technological content of plastic steel windows is very different. The production and processing equipment of roadside stalls is simple, the precision and compressive strength of doors and windows cannot be ensured, and the quality of the lining steel of the profile is poor, and there is no lining steel. Other parts are also very poor. . It is understood that under normal circumstances, the price of a moving window is less than 200 yuan, and a casement window manufacturer is less than 300 yuan. It is very likely to use fake large conch, Shide profiles, or according to the application of shoddy and cheap hardware and steel lining. Consumers should choose carefully by waiting for assembling components to control costs.
Before adopting a certain well-known brand of plastic steel doors and windows, consumers can first ask the supplier for the inspection report of uPVC Profile raw materials, and inquire about its four key index values, namely strength, ultra-low temperature drop hammer test, high and low temperature test specification elasticity coefficient and Is the angular compressive strength test up to regulations?