博文

What Is The 4140 Hot Rolled Steel Bar?

 4140 Hot rolled steel bars are products of a bar mill. Depending on the final application, the 4140 bars can be either shipped as hot rolled bars or further processed into cold rolled bars, also known as cold finished steel bars.  Most common types of hot rolled steel bar is merchant bar quality , Depending on their chemical composition and properties, 4140 Hot rolled steel bars can be used in a wide variety of applications, such as general purpose structural, machinery parts, frames, fixtures, automotive and agricultural implements and equipment, brackets, stakes, hydraulic cylinder filed like cylinder piston rods. As well as many other miscellaneous, non-critical applications that involve mild cold bending, mild hot forming, punching, machining, and/or welding. Hot rolled steel bars can also be produced as special bar quality steels like CK45 4340 or stainless steel, and also special heat treatment like Q+T and Induction Hardened for more critical applications. Yutong 's...

Cylinder Rod Chrome Layer Checking

图片

THE COMMON MATERIALS FOR SINGLE ACTING CYLINDER TUBES

Single Acting Cylinder Tubes are the one of the most important part in telescopic hydraulic cylinder working system.Single-acting telescopic cylinders use hydraulic power to extend the cylinder and gravity or mechanical force to retract the cylinder into its original position. This design is low-maintenance and compatible with most machinery. Double-acting telescopic hydraulic cylinders utilize unidirectional hydraulic power to extend and retract the cylinder. This telescopic cylinder design is best for heavy-duty applications.  these telescopic cylinders  have super processing requirements, and its inner surface roughness is required to be max Ra0.4 microns, and the requirements for coaxiality and wear resistance are strict. Generally, it is processed and produced by the principle of honing or rolling. As a experienced manufacturer of different kinds of telescopic cylinders, Wuxi YUTONG is very clear about  that the common materials of single acting cylinder tubes are ...

WHY CLIENT LIKES WUXI YUTONG E355 HONED TUBE

图片
  E355 Honed Tube is well known as ST52 E355 cylinder barrel in hydraulic industries. Honed pipes/ Skived & Roller Burnished Tubes are the most important material of manufacturing hydraulic cylinders. As one of the leading hydraulic cylinder honed tube suppliers and manufacturers, Wuxi YUTONG  has been supplying and exporting  honed tube and honed cylinder barrel for almost 20 years. We produce honed steel tubes and skived roller burnished tubes used for hydraulic cylinder or pneumatic cylinder with high quality & good prices.Imperial sizes & metric sizes available. The Specifications of Wuxi YUTONg E355 Honed Tubes Material : E355 ST52 Delivery Condition : BK, BK+S, GBK, NBK ID Size  : 20mm – 1500mm Length : max 16m Type : Seamless, Hot Rolled, Cold Rolled, Cold Drawn Straightness : ≤ 0.5/1000 Roughness : 0.2-0.4 u Tolerance EXT : DIN2391, EN10305, GB/T 1619,GOST 8731,GOST 1050,GOST4543 Tolerance INT : H7,H8,...

WHAT ISSUES NEED TO BE CONSIDERED BEFORE DESIGNING A HIGH PRESSURE CYLINDER?

  As we all know ,   high pressure cylinders   are very widely used for many industrial and mobile applications, including on and offshore oil industry, injection molding machines, steel industry, testing equipment and more. Cylinders are available in different types such as telescopic cylinders, tie-rod cylinders, large bore cylinders, long stroke cylinders, etc Wuxi YUTONG as a professional manufacturer of OEM designed hydraulic cylinders ,We have very rich and mature experience and technology before designing a high-pressure cylinder, we first consider the following aspects. 1. Minimize the overall size of the high-pressure oil cylinder to make the structure compact. 2. Ensure the traction force required for the reciprocating speed and stroke of the high-pressure oil cylinder. 3. The  cylinder piston rod  is not in a stretched state to avoid bending deformation. 4. Ensure that each part has sufficient strength, stiffness and durability. 5. Try to avoid the hi...

WHY PEOPLE LIKE NICKLE CHROME PLATED TUBE

  Nickel chrome plated  is the most common electroplating technique, which uses nickel and chromium deposits to form a multilayer finish on the substrate. The motorcycle and automotive industries use this process to achieve a shiny and glossy appearance on their parts. It forms a hard outer layer that improves the corrosion and wear resistance of the substrate. In addition to metal plating, it is also used in plastic materials for decorative purposes. Nickel chrome plating technology is the solution to extreme environments with intense corrosion: offshore, marine conditions, wind, solar and aerospace sectors, agriculture,hydraulic parts like  cylinder piston rod , mining industry, oil and gas industry. Steel grades as 1045 or 38MnVS6, having a low carbon content and good weldability, are the most suitable bases for nickel-chrome plated products.

THE PRODUCTION PROCESS OF QUENCHING TEMPERING BAR

  Quenching  tempering bar mostly work under relatively large dynamic loads. They are subjected to tension, compression, bending, torsion or shear. Some surfaces also have friction, requiring a certain degree of wear resistance and so on. In short, parts work under various complex stresses. These parts are mainly structural parts of various machines and mechanisms, such as cylinder shafts , connecting rods, bolts, gears, etc. They are widely used in machine tools, automobiles, tractors and other manufacturing industries. Especially for large parts in heavy machine manufacturing, quenching and high temperature tempering is more used. Because of the different stress conditions, the properties of conditioned parts in mechanical products are not exactly the same. Generally speaking, all kinds of quenched and tempered chrome bar should have excellent comprehensive mechanical properties, that is, proper combination of high strength and high toughness, in order to ensure the long-t...