Hebei / Baoding weight stud stud manufacturers to provide price list Yuanlong

Especially some of the larger diameter stud screws to be no head, such as studs. In general, it is not called "stud" and called "stud." The most common form of stud is threaded at both ends, in the middle is a light pole. The most typical uses: bolt, bolt or similar places, thick connection, time can not be achieved with ordinary bolt. Thread size d = M12, nominal length L = 80mm, the performance rating of 4.8 as long studs complete mark: GB / T901M12 × 80 3 main purpose 1, is used in the body of large equipment, you need to install accessories, such as the mirror Mechanical seal seat stud deceleration rack and so on. Then they use studs screwed into one end of the body, after installing the attachment nut to bring the other side, because the attachment is a frequent removal, thread wear out or damaged, replace the use of studs will be very convenient. 2, for the great thickness of the connection, the bolt length is very long, it will studs. 3, for connecting planks and inconvenient to use local hexagonal bolt connections, such as concrete roof trusses, roof girder overhead monorail beam suspension parts. 4 locking purpose practical work, external load vibration, change, materials and other high-temperature creep will cause friction reduction, thread vice CKS pressure disappear in a moment, the friction is zero, so that the screw connection is loose, such as after repeated effect, thread connection will relax and failure. Therefore, the need for anti-loose, otherwise it will affect the normal operation, causing the accident. 5 Basics studs are manufactured in accordance with GB897-GB901 standard, the use of materials are: Q235,45 #, 40Cr, 35CrMoA, Q345D, the specifications are: M3mm-M100mm, length can be customized according to user needs. High strength studs, materials are 35 #, 45 #, 35CrMoA, 25Cr2MoV, 304,316,304L, 316L, 2H, 2HM, B7, B7M, B16, B8,8, B8M, 8M, widely used in electricity, chemicals , studs role of refining, valves, railways, bridges, steel, auto parts and other fields: Usually used in mining machinery, bridges, automobiles, motorcycles, boiler steel structure, tower cranes, large span steel structure and large construction . Representation stud: General studs expressed as: M12 × 100 GB / T901-88 (standard) 35 # / 35 # (material) 8.8 / 8 (modulation level) means: diameter = 12mm length = 100mm GB / T901-88 national standard is used (of course, may also need to adopt industry standards) stud Standard: GB / T 900-1988 About stud stud construction time and cost savings for all studs without drilling, punching, threading, riveting, screwing and finishing other steps, expanding potential applications of structural design, high current and small penetration. Therefore, it can be welded to the thin sheet. Stud welding from one side of the workpiece to be welded. Can all position welding, can be influenced by means of expanders on the vertical partition limit. Because it is a short period after soldering and welding little deformation, it does not require trimming. Because welded structure does not require drilling, it will not cause leakage. You can reach very high strength joints that joint strength is greater than the stud stud welding strength itself. How to install the studs good economy advantage over other welding methods is that the welding power. For the production of parts, low-cost standard stud. Equipment and torch with a variety of types, the acquisition cost of the equipment is relatively low. Depending on the product, it can be formed into a multi-position automatic welding, or high-precision gantry CNC automatic welding machine. Stud welding with high quality reproduction rate and smaller scrap. However, stud welding in the application as to pay attention to other fusion welding of carbon steel has certain restrictions for structural steel stud, stud the recommended combination of materials and weldability of the base metal welding, or stud and the base material will not melt sex with each other. And base metal stud material combinations other than the recommended range through testing to determine the weldability and related product design requirements bolt inspection and assessment of the possibilities. 6 Surface treatment studs generally have to go through many types of surface treatment, surface treatment of the bolt, commonly used in electroplating, black oxide, phosphate, non-electrolytic zinc coating tablets and the like. However, a large proportion plating fasteners in the actual use of the fastener. Especially for use in automobiles, tractors, electronics, instrumentation, aerospace, telecommunications and other industries and fields more widely. However, for threaded fasteners, using not only requires a certain degree of corrosion resistance, but also must ensure that the thread of interchangeability, here also called screwed sex. In order to satisfy "antiseptic" and "swap" in the use of threaded fasteners dual-use performance requirements, develop specific standard plating layer it is necessary. GB / T5267.1-2002 [threaded fasteners plating layer] standard is one of the national standard "fastener surface treatment" series of standards, which include: GB / T5267.1-2002 [Fastener Plating Layer]; GB / T5267.2-2002 [non-electrolytic zinc flake coating fasteners] two standards. This standard is identical with the international standard ISO4042; 1999 [threaded fasteners plating layer]. This standard replaces GB / T5267-1985 [threaded fasteners plating layer] standards. 7 basic knowledge and maintenance of production stud is required with a fixed set of machining, of course, in fact, machining process is relatively simple, mainly about the process: first is the need to pull the material, the material is to use pull pull feeder will distort the The material pull straight, after this procedure to the next process, the next process is to use the cutter to pull straight long feed lengths according to customer requirements cut to customer needs, which completed the second step, The third step is to cut a good short material on roll on roll out threaded wire feeder; here Common studs on the processing end, of course, if you need other requirements, that require additional steps. Bolt refers generally known is that some relatively large diameter of the screw, according to this argument screw relative to the bolt, the diameter on a lot smaller. No head studs, and some called studs. Studs are threaded at both ends, in the middle without thread, in the middle of the light pole. Studs in large plants such as deceleration rack above. In actual use, when coupled with the impact of external load will shake temperatures will be friction becomes smaller as time passes threaded connection is loose and failure. So usually when the need to do maintenance work stud. Stud or bolt will have problems for a long time under the influence of mechanical friction, a problem occurs when the engine oil pan to be removed, carefully check the engine bearing usage, bearing clearance check between It is too large, if the gap is too large should be replaced. When replacing studs should replace the connecting rod bolts. Some large equipment such as nail machine is not very stable when the engine is running or if you find time to appear in the usual run of abnormal sound, but also a timely stop to check, in order to avoid bigger problems. In every maintenance time, should replace other parts of the new studs and the new replacement for inspections when the focus on the head and the guide portion of the stud, have strict inspection of each part of a thread no cracks or dents, but also view the tooth-shaped stud, if there is a change. Pitch There are no exceptions, if the abnormal situation on the firm can not be used. When installing the connecting rod cap should use this tool torque wrench. Must be in accordance with the provisions of the standard tightening torque is not too large nor too small, but also pay attention to selecting manufacturers supporting the studs and studs. Hebei / Baoding weight stud stud manufacturers to provide price list Yuanlong