Hinge: General term for a part that is attached to the door and body and is capable of rotating on the same axis and joining together.
A door hinge comprises a hinge seat and a hinge body, one end of the hinge body is connected with the door frame through a mandrel, and the other end is connected with the door fan; The hinge body is divided into two sections, one is connected with the mandrel, the other is connected with the door fan, the two sections of the hinge body is connected into a whole through the connecting plate, the connecting plate is provided with a door gap adjustment hole. Because the hinge body is divided into two sections, and connected into a whole through the connecting plate, remove the connecting plate, you can remove the door fan for repair. The connecting plate door gap adjustment hole includes: adjust the upper and lower door gap long hole and adjust the left and right door gap long hole. The hinge can be adjusted up and down as well as left and right.
According to the position divided into: hidden type, exposed type two; By styling and model positioning style factors are very large, the inner type mainly reflects streamlined, modern bridge car body modeling trend; Exposed pursuit of rough appearance, show the tough posture of the SUV;
According to the structure is divided into: hinge type, rotary arm type, connecting rod type;
According to the manufacturing process is divided into: stamping hinge, casting hinge two;
Sheet metal stamping hinge because of its cheap price, convenient manufacturing, in 10 years ago in the major automobile manufacturers widely used;
Hot extrusion type, hot rolled type: direct heating ingot and then through mold extrusion, rolling to shape, and then through machine processing, generally two types of steel formed a hinge cold rolled type: it is the extension of hot rolled type, on the basis of hot rolled steel through manufacturing processing, heat treatment. Its surface is more beautiful than that of hot rolled steel, its size is more accurate, its mechanical properties are better, and its price is more expensive.
According to the function divided into: single function, multi-function, etc.
here are real pictures of door hinge forgings parts produced by Tongxin precision forging company