Service HotlineTraditional rivets have a single purpose and need to be used in combination in most occasions. The operation is complicated, labor-intensive, and the connection quality cannot be guaranteed. Therefore, there is a need for an integrated rivet.
screw generally includes a screw head, a screw part and a screw tail. In the traditional screw processing, the screw head and the screw part are punched out first, and then the threaded part is processed on the screw shank through the turning process. When the screw head is traditionally punched, the screw head is easily damaged due to the large punching force.
If you are installing rivet nuts specially, you can use a grinder, use a rivet machine, if you are a non-professional, you can directly install a few, and then tap with an awl. Rivet equipment (manual or pneumatic) cannot be used in the field of fastening using hammers to pull rivet nuts. It is widely used and is mainly used in the assembly of electromechanical and light industrial products such as aviation, furniture, automobiles, instruments, machinery, and decoration. Of course, it is more common than the rivet nut, and it is often difficult to distinguish.
The most important link in the development and design of fasteners is quality control. There are several major points from the feed to the finished product shipment, and these major points have different inspection methods. First of all, the feed is related to appearance, size, elements, performance, detection of harmful substances, etc.; the process is more about appearance, size, percussion test, forging flow line; heat treatment is more about appearance, hardness, torque, tension , metallography, etc.; the surface treatment is more about some hydrogen embrittlement tests, coatings, salt spray, etc., including a detection of harmful substances in shipments. In size and appearance inspection, the common ones are quadratic element, contour measuring instrument, three-coordinate measuring instrument, image sorting machine (this is a full selection machine); in mechanical and chemical inspection, there are mainly hardness machines (Rockwell and Vickers). ), tensile machine, metallographic microscope; in material testing, there is a spectrum analyzer and a salt spray testing machine.
Usually, the pumped storage unit adjusts the opening of the guide vane through the movable guide vane to control the power generation output and the pumping head of the unit. The torque of the guide vane rotation depends on the relay to act on the control ring, and the torque is transmitted to the guide vane rotating shaft through the connecting rod and the arm. The torque transmission between the crank arm and the rotating shaft all acts on the pin located between them. When the unit is overhauled, it is necessary to remove the pin between the arm and the rotating shaft of the guide vane in advance when it comes to the replacement of the guide vane. However, due to the special position of the pin and the limited inspection space, the conventional method is not only time-consuming and laborious, but also has the risk of damaging the pin. Maintenance work brings inconvenience.
We have many years of experience in the production and sales of screws, nuts, flat washers, etc. The main products are: high-strength washers, splint butt screws, rivets, DIN186 bolts, lifting ring joint bolts and other products, we can provide you with suitable fastener solutions for you Program.
