Liaocheng Zhen Xing Steel Pipe Co., Ltd. is a high-precision cold drawn steel, quilting grinding tube, hydraulic cylinder tubes, HM pipe production units is specialized in the production of precision cold drawn steel pipe of large enterprises. Was an intensive, large-scale, flexible technology and systems into one of the precision cold drawn steel tubes, cold drawn, quilting grinding tube, hydraulic cylinder tubes, HM pipe supplier. Varieties of 20 #, 45 #, 20G, 16Mn, 27SiMn, 35CrM0, Cr5Mo.GCR15, 40Cr and other precision cold drawn steel cold drawn HM small diameter tube Cold drawn steel tube, bearing steel, hydraulic support pipe, oil pipe, chemical pipe , textile tube, rod, steel and other industries with hydraulic model aircraft and special materials, special specifications, special purpose, thin and thick-walled seamless for users purchasing consignment difference between hot rolled cylinder tube precision steel tube with a continuous casting blooming slab slabs or billets as raw material, after reheating furnace heating, high pressure water descaling into the roughing mill, roughing material through the cutting head, tail, and then enters the finishing mill, the implementation of computer-controlled rolling, finishing After a laminar flow after cooling and coiling coiling machine, a straight hair volume. Straight hair volume head, tail and tongue were often fishtail, thickness, width accuracy is poor, there is often wave-shaped edge, folding, pyramid and other defects. Its volume weight heavier, coil diameter of 760mm. The straight hair volume by cutting head, cut tail, trimming, and multi-pass straightening, leveling finishing line treatment, and then cutting board or heavy volume, it becomes: hot rolled steel plate, flat rolled steel coil, vertical cut with other products. If the hot-rolled coil finishing descaled by pickling and oiling Serve hot rolled pickled coils. Thick-walled cylinder tube honing honing working principle, the sand grains on the strip with a certain pressure, the lower the speed of the workpiece surface grinding, extrusion and scratches. Sand rotational movement of the upper and lower reciprocating motion, the grains of sand in the hole on the strip surface a cross-shaped track is not repeated the web (Figure 1), as compared with the inner bore grinding, honing participate cutting grit and more, plus in each and abrasive cutting forces on very small. Honing the cutting speed is low, the speed of the grinding wheel is only a few tenth of rotation of the honing process and to add a lot of cooling liquid, so that the surface be sufficiently cooled, not burn, machining distortion thin, it can get a more fine surface roughness. Figure 1 is formed on the surface of the hole abrasive locus honing head floating connection with the machine spindle, in order to ensure a uniform margin, as long sand bar, honing the workpiece with the convex part of the first contact with the sand bar, the contact pressure, the protruding part of the soon to be rubbed until the amendment to the workpiece surface in contact with the sand in its entirety. Therefore, before the procedure can be corrected honing geometry generated error and surface waviness error (Figure 2), but the axis position error can not be corrected. Figure 2 honing before the procedure can correct the error a) roundness b) cylindrical c) surface waviness two, affecting the quality and productivity of honing factors to get a good honing effect, in addition to use advanced tools and the correct selection of honing strip mill material and particle size, the honing process parameters on the process used when the quality and productivity also have a great impact. Three, (HM tube honing tube cylinder tube) and honing the peripheral speed υy reciprocating speed υw increase υw, sand bar from the role of a good grind, and high productivity. Increase υy, in addition to improving efficiency, but also improve the surface quality. But both can not be increased too much, otherwise it will lead to cutting cutting temperature increases, chip difficulty, sand bar blocking, wear intensified, honing effect declined sharply (Figure 3). Honing speed υh as υy with υw synthesis speed. Both synthesis of Figure 3 determines the speed and honing honing amount (w) and the amount of wear of the sand (s) is between 1 - honing pressure 106N / m 2 - honing pressure of 5 × 105N / m 3 - honing pressure 3 × 105N / m honing track crossing angle of a size, a size of the angle and the honing productivity and surface roughness, is generally considered a = 30 ° ~ 60 °, the honing effect, recommended by the honing angle is: coarse honing a = 40 ° ~ 60 °; fine honing a = 20 ° ~ 40 °. For Uh recommends the following values: Not hardened steel machining is 36 ~ 49m/min; hardened steel is 23 ~ 36m/min; cast iron 61 ~ 70m/min; alloy is 70 ~ 76m/min. Fourth, it refers to the sand of the honing pressure acting on the pressure surface, depending on the hardness of the surface to be machined, grinding and processing properties of the surface roughness. For example honing cast iron, crude honing take 5 × 105 ~ 106N / m; precision honing take 2 × 105 ~ 5 × 105N / m. Honing steel, the coarse honing take 8 × 105 ~ 2 × 106N / m; O fine honing take 4 × 105 ~ 8 × 105N / m. Sometimes had to improve the surface roughness, fine honing even when using 105N / m pressure. Five, honing head trip Lx and overtravel a. Precision grinding tube stock quilting