On the market, most low-quality hinges are made of iron with a thickness of less than 3mm. Generally, the surface is relatively rough, the coating is uneven, there are impurities, and some have different lengths, hole positions, hole spacing, and other deviations, which do not meet the decoration requirements. Moreover, the disadvantage of ordinary hinges is that they do not have the function of spring hinges. After installing the hinges, various impact beads must be installed, otherwise the door panel will be blown. The high-quality hinge is made of 304 stainless steel, with a thickness of up to 3mm. The color is uniform and the processing is exquisite. When held in the hand, it can clearly feel heavy and thick, with flexible hinge flipping and no "stagnation" phenomenon. The feel is delicate, and there are no edges or edges.
The above is to distinguish the difference in quality from the appearance and material of the hinge, and let's talk about the difference in quality from the inside of the hinge.
The core of hinges is bearings, and smoothness, comfort, and durability are all determined by bearings. The bearings of low-quality hinges are made of iron sheet, which is not durable, easy to rust and lack friction, resulting in a "creaking" sound when opening and closing doors for a long time. And high-quality hinge bearings are made of stainless steel material, and are equipped with precision ball bearings made of all steel. True ball bearings meet international standards for load-bearing and hand feel. It ensures the flexibility and smoothness of opening the door, mainly in terms of silence.
