Qingyuan steel manufacture process (b)

Qingyuan steel manufacture process (b):
(11) bending: According to the design requirements, the use of certain processing equipment and tooling plate or the bending beam made of process for a certain shape. Suitable for cold-formed sheet metal and small steel; suitable for bending thick plate and more complex components, steel, bending temperature in 950 ~
1100 ℃.
(12) coil processing: external force makes flat steel outer fiber elongation, shortening the inner fibers bending deformation method. Coil done by coiling machine. Depending on the temperature of the material, it is divided into cold and hot rolled coil. Coil is mainly used for welding circular column, plumbing, gas and other packages.
(13) Flap: The Edge Qingyuan steel members bent or angled shaped technological process called folding. Hemming generally used for the sheet member. Flap Flap machines commonly used, with appropriate mold.
                                           Bending machine
(14) molding: molding using a mold to make a way in the steel molding pressure equipment. There are specific practices blanking forming, punching forming, bending, rolling, stretching, rolling and the like.
(15) shovel edge: edge shovel by shovel head and hammering effect on the eradication of unnecessary portions of the metal edge of the groove is formed. Shovel and pneumatic hand-side of the points, the use of wind wind shovel. The lower edge of the shovel accuracy, generally used for less demanding, a small groove processing.
(16) Shaper: planing the workpiece is pressed, machining planer along the edge reciprocated, dig a groove. Planing planing straight edge or bevel.
(17) Milling: Milling and planing similar, but planing machine take the knife holder and planer box with disc cutter in place, that is, while the cutter along the edge of linear movement also rotates, the processing efficiency higher.
(18) carbon arc gouging: the carbon rod as an electrode, and being shaved metal arc between the metal is heated to a molten state, and then use compressed air to blow off the molten metal. High efficiency.
(19) to sample method: 1 Press on the mounting platforms: 1 member put the real kind, then the position of the part on the real samples were assembled to become members.
(20) Duplicating Copy law: first, like land law assembled into one-sided structure, and add tack welding, and then turn over a copy membranes, another one-sided in its upper assembly structure. Suitable for mutually symmetrical cross section truss structure.

(21) stand Packing: According to the characteristics of its parts stable position of member of a top-down or bottom-up assembly adapted to be placed a smooth, highly little structure.
(22) lying loaded: member assembly is placed supine position. For large sections small but length of the elongated member.
(23) membranes assembly method: the parts member with membranes positioned on the assembly in its assembled position. For the manufacture of high precision components of large quantities of products.
(24) arc welding: the use of electric arc between the electrode and the workpiece heat generated by the process known as fused metal arc welding. There are manual arc welding, automatic welding, automatic welding and gas welding points.
(25) Resistance welding: a current through the contact of two weldments, the contact resistance at the maximum current through the high temperature, the material is a semi-molten state, the applied pressure and fused together. Usually used for welding or spot welding steel round bar.
(26) ESW: by current through molten slag resistance heat generated by the metal welding. As for connecting the upper and lower flange of the beam stiffeners penetration welding when the column box columns and beams rigidly connected.
(27) manual welding: electric arc welding with all manually operated, low efficiency, quality and on their own, poor stability, but flexible, suitable for short and complex welds or weld site.
(28) Submerged arc welding: welding arc buried beneath the powdered solder by mechanical automatic movement spread solder wire and send. Suitable for longer weld. Good weld quality and high efficiency.
(29) GMAW: Use shielded arc welding molten metal CO2 or argon, sending its wire and gas are automatic, just manually move the gun. It belongs to semi-automatic welding, welding quality and high efficiency.
(30) Shot: Shot Shot particle diameter of 0.8 to 2.0mm projectile by the impeller center inhalation, the impeller tip speed directional thrown, fired anti-rust treatment need Qingyuan steel surface, in addition to achieve mechanical rust purposes. in this way a high blasting efficiency, low cost, less pollution