According to statistics from the fire department, fires caused by electrical causes have become the first of many types of fire accidents in recent years, and nearly 80% of residential fires in urban and rural residents are related to outlets or lines. It can be seen that the quality of the switch socket directly relates to home security. In home decoration, you must not take lightly when purchasing electrical products. You must choose quality products such as Sanxiong Aurora, Clipsal, Simon, and Merlin Gerin. This home security can be guaranteed.
The following is the common sense of purchasing wall switch products. We hope to help everyone raise awareness.
First, pay attention to the brand. According to statistics, there are more than 1,500 domestic companies in the production of switch socket products, the quality of the product varies greatly, because many ordinary consumers do not have the means to identify the advantages and disadvantages, coupled with limited understanding of the switch socket brand, gave the illegal The survival space of profiteers has caused the proliferation of fake and shoddy products. Of course, large companies pay great attention to the image of their own brands. They have strict product quality requirements and after-sales service. Most companies promise no less than 12 years of quality assurance. Therefore, in order to use it with confidence, the switch socket must choose a big company or a good brand. Such as Qisheng, Sanxiu Aurora, Merlin Gerin, TCL International Electrical and other brands of switch socket products are clearly put forward for 12 years of product warranty period, you can rest assured that use.
Second, to check the product "documents." Certificate of Conformity: You must have origin, name or trademark, model or name, date of manufacture, inspection staff number, etc. Product description: The method of use, installation and maintenance of the product shall be marked, and the quality assurance document shall be attached.
Third, check the appearance of the product. The panel should be uniform in color, smooth in surface, free from dents, noises, bubbles, stains, cracks, swelling, lack of glue, deformation, scratches, shrinkage, and other defects. Visible metal parts are free from burrs, cracks, corrosion marks, rust, and Screw head damage.
Fourth, look at product identification. Obvious brand logo, there are 3C, the Great Wall and other certification marks. The product shall be marked with: rated current, rated voltage, symbol of the nature of the power supply, manufacturer and product number, socket with polarity and 3C mark. Most of the logos of branded products are formed at the time of injection molding or stamping. The signs are very clear and obvious, and the signs are skewed and fuzzy and should not be purchased.
Fifth, weight. When buying a switch socket, you should also weigh the weight. If it is a thin copper sheet, it will not have the same weight and quality. Only copper and terminal blocks inside the switch socket are thick, the weight of a single switch socket will be heavy, and the copper part inside is the most critical part of the switch socket, and it is also the key part of counterfeit and inferior products to cut corners. Do not buy in your hands, do not buy, of course, pay attention to: Some bad manufacturers in the product to increase the weight of iron, do not be fooled!
6. Obtain and save the invoice. If there is a quality problem, this is the basis for the appeal.
Seventh, the most important thing is to go to the brand company to specify the sales shop to buy. The unscrupulous sellers mainly included counterfeit or inferior products incorporated into the branded switch socket products, or the panels of the brand products were retained and the inner cores were replaced with inferior ones. Therefore, in addition to looking for brands when buying switch sockets, it is best to purchase them from the brand company's stores or designated sales outlets.
Switch socket buy water heater brand lighting brand socket switch space home decoration residential
Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.
Round head Tapping screw,hex tapping screw,flat head tapping screw,pan head tapping screw,truss head tapping screw
Shenzhen Lanejoy Technology Co.,LTD , https://www.wirefruitbasket.com