Service HotlineThe one-way nut provided by Guangdong Yueluo Hardware Industry Co., Ltd. has the following characteristics: a. It is composed of a screw sleeve 1, a threaded core 2, a cover 3, a spring 4 and a bead 5; b. There is a stop 7 on the outer edge of the core 2 and a ring of grooves 8; c. The screw sleeve 1 is sleeved on the screw core 2; d. 4 is enclosed in hole 6.
The research on rivet nuts started in the 1970s in my country and is still in the design and development stage. In the mid-1980s, equipment for the production of blind rivets was introduced from abroad, but no rivet nut has been produced so far. After the inventor's search, no low-carbon steel rivet nut was found to be publicly used.
In actual use, the rivet rod body 3-2 is passed through the riveting plate 6 and the riveting plate 7, and the rivet dome head 3-1 is placed in the mold cavity 1-1, and the cover mold 2 is driven by the riveting machine to impact the rivet rod body 3-2. Because the center of the cover mold 2 is provided with a cavity 2-1 that matches the shape of the rivet dome 3-3, the end of the rivet rod 3-2 will form the rivet dome 3-3. However, due to the rivet When the riveting machine is impacted and vibrated, a large amount of oxide slag 4 will be generated, and the oxide slag 4 will slide down the surface of the cavity 1-1 to the bottom of the cavity 1-1 and accumulate. At this time, the temperature of the rivet is very high and the plasticity is very good. The hardness is extremely low and it is easy to form. Therefore, the accumulated oxide slag 4 squeezes the surface of the rivet dome 3-1 and the bottom surface of the cavity 1-1 to form pits, and causes wear on the bottom surface of the cavity, not only It affects the riveting quality, riveting strength and appearance quality of the rivet, and also affects the quality of the rivet die, resulting in economic losses.
In pressure vessels such as oil cylinders, the existing sealing structures are all seals (such as O-rings, etc.) plus a retaining ring. The cross-sectional shape of the retaining ring is generally rectangular. The retaining ring of this shape is limited in the sealing structure. It protects the sealing ring and does not participate in the sealing effect.
During assembly, the washer and the screw are two separate parts, and the washer needs to be put on the connection part of the screw, which increases the workload of people during assembly, and the washer is easy to slip off; and some screws are fixed with Although the washer can reduce the workload of people during assembly, the washer is fixed on the screw, and the original function of the washer is limited.
We have many years of experience in the production and sales of screws, nuts, flat washers, etc. The main products are: flat nuts, combination Phillips pan head screws, DIN933 screws, 2.5304 stainless steel screws and other products, we can provide you with suitable fastener solutions for you Program.
