59results about How to "Improve stamping resistance" patented technology

The invention discloses an internal parting wall for a hollow internal template steel screen type cement anti-seismic thermal insulation wall. Connectors are symmetrically arranged at the both ends of steel screens; the connectors are fixedly connected with convex surfaces through convex edges; a plurality of the convex surfaces are fixedly connected with a plurality of outer grooves; inner grooves are arranged at the middle part of the outer grooves; the two steel screens which are symmetrical front and back are tied and fixedly connected with each other through a plurality of zinc-plated iron wires, so as to form a steel screen plate; a plurality of prism channels with a diamond cross section are formed between the two steel screens, and anti-flaming glass cotton is arranged in the channels; vertical keel square steel tubes are arranged at the outer sides of the outer grooves at the middle parts of the steel screens, which are tightly adhered to the inner grooves; and the vertical keel square steel tubes are fixedly bound and connected with the two steel screens which are symmetrical front and back through the zinc-plated iron wires. The internal parting wall provided by the invention has the advantages of simple structure, convenience in construction, high security and reliability, and reasonable manufacturing cost. The internal parting wall meets the strict standard requirements of a national construction design and detection department, and has the characteristics of rapidness of construction, energy conversation and environmental friendless, crack and earthquake resistance, fire and moisture prevention, sound, thermal and cold insulation and the like. The properties of a wall body can meet the highest construction design standard requirements. The internal parting wall has wide popularization and application in a construction industry.

The invention discloses a pre-phosphated electrogalvanized automobile outer panel with a friendly coating. The pre-phosphated electrogalvanized automobile outer panel is characterized by being formedby performing electrogalvanizing treatment and pre-phosphating treatment on the surface of an Nb-containing ultra-low carbon steel panel; the Nb-containing ultra-low carbon steel panel comprises the following chemical components in percentage by mass: less than or equal to 0.0012% of C, less than or equal to 0.010% of Si, 0.08-0.18% of Mn, less than or equal to 0.010% of P, less than or equal to 0.008% of S, 0.02-0.04% of Nb, 0.02-0.05% of Als, less than or equal to 0.003% of N, and the balance Fe and inevitable impurities; and the content of nickel and the content of manganese in a phosphating film obtained through pre-phosphating are 0.7-1.5% and 3-8% respectively. The pre-phosphated electrogalvanized automobile outer panel can show good coating performance on the premise of ensuring good application performance such as stretching and stamping, and a manufacturing method is simple and suitable for being used and popularized.

The invention discloses a method for carrying out one-side copper plating on a wide stainless steel band and an electroplating bath. The method comprises the following steps: carrying out oil removal and activation on the pre-plating surface of the stainless steel band of a substrate; carrying out nickel pre-plating and general nickel plating on the activated pre-plating surface of the stainless steel band of the substrate, and carrying out copper plating in an alkaline cyanide-free plating solution; passivating and drying the copper-plated stainless steel band. The improved electroplating bath is adopted in the copper plating process, at least two transmission rotary rollers are hermetically mounted on two groove walls at a transmission inlet and a transmission outlet of the electroplating bath respectively, and the electroplating bath can be used for guaranteeing the liquid level of the bath and preventing a plated layer of the stainless steel band from being scratched and is especially suitable for continuous one-side copper plating of the wide band-shaped stainless steel band. The method is safe, environment-friendly, low in cost and capable of carrying out high-speed one-side copper plating on the wide stainless steel band; the one-side plated layer of the stainless steel band, prepared by the method, is uniform, bright and compact in surface, good in corrosion resistance, high in electric conductivity and excellent in stamping resistance, meets the requirements of electronics and military industry, and can be industrially produced.

The invention belongs to the technical field of metal plate processing, and relates to a reciprocating quick production and processing device of square plates. The reciprocating quick production and processing device comprises a processing platform, wherein a plurality of feed auxiliary wheels are fixed to the top end of the processing platform, a positioning plate is welded on one end of the upper surface of the processing platform, and a hydraulic push rod cylinder is fixed to one end of the positioning plate by virtue of a screw. According to the reciprocating quick production and processing device, a reciprocating stamping forming structure is designed, so that the device conveniently reaches the stable lifting frequency through gear fit conduction; a counterforce offset fit design isused, so that the stamping forming efficiency of the forming production, the uniformity of a forming outer pipe and long service life are guaranteed; the combined design of a protective support structure under partial pressure and a matching top plate is adopted, so that good stamping can be formed on the device during use, and a bottom plate is prevented from being damaged by excessive pressure in a stamping forming process; and the forming of bottom counterforce is reduced by utilizing the design advantages of the structure, and the use effect of the device is increased.