The high strength tight chain is composed of alternating rings and flat rings. After heating the round bar, the round bar is arranged into an open chain link shape in the knitting machine according to the shape of the knitting core, and then the opening is welded to form a closed loop. At present, there are many ways to make the flat ring, one is to forge the flat ring directly with the die forging equipment, the other is to weave and weld the round bar, and then put it in the forging (or extrusion) equipment to press the ring into the flat ring. Neither of these two methods involves the technological process of the flat bar knitting into a flat ring, so it is not necessary to turn the flat bar, so there is no relevant technology at present.
（1） Technical problems to be solved
A mining high strength compact chain production method is provided, which can improve the production efficiency and simplify the production process.
（2） Technical proposal
In order to solve the above technical problems, the invention provides a production method of mining high strength compact chain, which comprises the following steps:
The round bar is prepared into a flat bar of a specific shape, the specific shape is: the upper surface of the flat bar is an irregular curved surface, and the lower surface is a plane;
Rotate the forged flat bar to the preset angle, and then continue to rotate in the same direction until the surface below the flat bar adheres to the attitude of the braiding core and is sent into the braiding machine. At this time, the two braiding wheels of the braiding machine are respectively located at the front and both sides of the flat bar, and the braiding core is located at the back of the flat bar;
Control the backward movement of the two plaiting wheels. Because the back of the plaiting rod is held by the plaiting core, the plaiting rod is first bent into a U shape, and then the plaiting wheels on both sides are respectively closed to the center, so that the U-shaped plaiting rod is bent into an O-shaped chain ring, which is called the plaiting ring;