First-class stainless steel standard parts have good ductility, and when not in use, commonly known as "locking" or "biting" phenomenon can occur, which puts staff in a dilemma. Locked stainless steel standard parts are also difficult to remove. In the event of similar phenomena, share the following usage precautions to reduce unnecessary trouble for users.
1. Choose stainless steel standard parts with good quality and low price correctly:
(1) Before use, confirm whether the mechanical properties of stainless steel standard parts can meet the usage requirements, such as the tensile strength of bolts and the safety load of nuts;
(2) The length selection of stainless steel standard parts such as bolts should be appropriate, with 1-2 pitch exposed after tightening.
2. Greatly reduce the friction coefficient of stainless steel standard parts:
(1) The threads on stainless steel standard parts must be kept clean and checked for roughness before use;
(2) Before use, appropriate lubricants such as 40 # engine oil, butter, etc. should be added to the stainless steel standard parts.
3. Choose the correct operating method:
(1) The nut must be rotated perpendicular to the axis of the screw and must not tilt;
(2) During the tightening process, the speed and force of rotation should be appropriate, and the application of force must be uniform. The force should not exceed the safe torque value;
(3) Try to use torque wrenches or socket wrenches as much as possible, and avoid using adjustable or electric wrenches;
(4) When used at high temperatures, it is necessary to cool down and it is not suitable to use electric wrenches or other quick rotations to avoid rapid temperature increases that may cause professional stainless steel standard parts to lock up.
4. Using washers as needed can effectively prevent the problem of over locking on first-class stainless steel standard parts.
5. When ordering, the product name and standard number should be indicated, indicating the performance level. When purchasing, it is necessary to first determine which type of stainless steel standard parts are needed, and then determine what specifications are needed, how many quantities are needed, and whether there are packaging requirements.
Locking or biting often occurs on stainless steel standard parts, and the prevention of "locking" phenomenon can mainly be considered from the above precautions. Stainless steel standard parts have essential differences from general standard parts and have good ductility. Therefore, the correct understanding and use of these types of stainless steel standard parts can prevent the commonly known phenomenon of "locking" or "biting".