Common problems and solutions during the use of stainless steel screws!
Stainless steel screws are widely used in our daily lives, but common problems and their solutions are not widely known, such as anti loosening, rusting, and breakage. Once these problems occur, they can be replaced in small cases and cause destructive damage to equipment components in large cases. So, how to avoid these problems, The following is a list of common problems and their prevention methods by the editor of Gongpin No.1. For more information, please pay attention to official account Gongpin No. 1.
1. Stainless steel screw anti loosening problem:
Simply put, it means using stainless steel screws on product materials to prevent them from accidentally falling off. We need screws to be more tightly connected to the product materials. There are two solutions for preventing loosening of stainless steel screws:
(1) The use of special materials, such as engineering resin materials, has good rebound properties. Attach it to the stainless steel screw thread. Make it mechanically rub against nuts or material products. Generate vibration and absolute resistance. Completely solve the problem of loose screws.
(2) Apply a layer of glue on the threads of stainless steel screws, known as dispensing. This type of adhesive is called drop resistant adhesive. This type of adhesive has good properties such as high adhesion and non toxicity. This type of adhesive is applied to stainless steel screws, and after drying, it has super strong adhesion. It can cause the stainless steel screw thread to have a super tightening effect when combined with the nut thread or the product thread hole. It has an excellent anti loosening effect.
2. Rust problem with stainless steel screws
(1) The attachment of dust or dissimilar metal particles, in humid air, connects with the condensate of stainless steel screws to form a micro battery, triggering an electrochemical reaction and damaging the protective film, which is called electrochemical corrosion.
(2) The surface of stainless steel screws is coated with organic juices (such as melons and vegetables, noodle soup, phlegm, etc.), which form organic acids in the presence of water and oxygen. Over time, organic acids corrode the metal surface.
(3) The surface of stainless steel screws adheres to substances containing acids, alkalis, and salts (such as alkaline water and lime water splashing during wall decoration), causing local corrosion.
(4) In polluted air (such as atmospheres containing large amounts of sulfides, carbon oxides, and nitrogen oxides), when encountering condensation water, sulfuric acid, nitric acid, and acetic acid droplets form, causing chemical corrosion.
The above situations can cause damage to the surface protective film of stainless steel screws, leading to corrosion. So, to ensure that the surface of stainless steel screws is permanently bright and not corroded. We need to clean its surface. Passivation and other treatments.
3. Stainless steel screw fracture issue:
But generally speaking, stainless steel screws are rarely broken. Because the stainless steel screw wire itself is relatively hard. But in specific situations, stainless steel screws can still break. So what are the main reasons for the fracture of stainless steel screws?
The reasons for the fracture of stainless steel screws are as follows:
(1) There is a quality issue with the raw materials used for stainless steel screws, and the quality of the stainless steel screw wire is poor. There are many impurities and impurities, which lead to insufficient hardness of stainless steel screws.
(2) Production process issues with stainless steel screws. For example, stainless steel screws with eccentric heads, as well as Q values that are too deep and R position designs that are too small during downward punching operations during production and manufacturing.
(3) The customer applied excessive force when using stainless steel screws. It is generally recommended to conduct a torque test on stainless steel screws to see the minimum breaking force, and then adjust the corresponding torque.
The above three reasons are the main reasons for the fracture of stainless steel screws. There are various problems with screw breakage. If none of the above are the cause of the fracture, it should be checked step by step to find the final cause.
