75results about How to "Improve process performance" patented technology

The invention discloses a molding method of a double-curvature variable-section variable-thickness through beam. The molding method comprises the steps that a molding die is manufactured according to the structural form of the double-curvature variable-section variable-thickness through beam; the molding die comprises a combined female die body and a limiting strip, and the combined female die body comprises a detachable side check block and a fixed block; prepared hot-melting prepreg and hot-melting prepreg cloth are shorn to the size of an unfolded section laying layer of the through beam, a hot-melting prepreg cloth laying layer is firstly laid on the surface of the female die body, and then vacuumizing compaction is carried out; laying layers are stacked according to the thickness of the through beam and the designed laying layer sequence, hot-pressing shaping is carried out in the laying layering stacking process according to the thickness of the laying layers, and finally a composite material prepreg lamination is manufactured; then coating, curing and combined female die body removal are carried out to obtain a product. The aerodynamic configuration requirement can be effectively guaranteed, the problems that the laying layers and size precision of a large-size double-curvature variable-section variable-thickness through beam are hard to control are solved, and finally the overall quality and size precision requirements of the through beam are guaranteed.

The present invention discloses a cold cure high resilient foam and a preparation method, the cold cure high resilient foam comprises components A and B, the component A comprises, by weight, 60-70 parts of polyether polyol; 30-35 parts of polymer polyol; 0.25-0.55 part of a silicone surfactant; 1-2 parts of a crosslinking agent; 0.85-1.3 parts of a catalyst; and 4-6 parts of water; the B component comprises, by weight, 0.5-1.5 parts of TDI (80 / 20); 1-3 parts of polymerized MDI and 0.5-1.5 parts of modified MDI, the water is used as a foaming agent, by adjusting the catalyst, the requirements of reduced density can be met, the density of the made cold cure high resilient foam is about 35KG / m<2>, the mechanical properties of the prepared cold cure high resilient foam can meet car and furniture seat back cushion requirements, so that the seat back cushion foam is further lightweight, and has very high availability and market value.

The invention discloses a hot-dip galvanizing process for loose parts, which includes carbonization and degreasing steps: hot forgings are carbonized and degreased by waste heat insulation, and cold parts are carbonized and degreased by continuous carbonization furnace or gas flame combustion; shot blasting cleaning steps: Carry out shot blasting to remove the scale on the surface of the workpiece; heating hydrogen reduction step: send the workpiece into the reduction reaction channel, and under the protection of the reducing atmosphere gas, heat the workpiece to raise the surface temperature to above 600°C, so that The oxide layer on the surface of the workpiece undergoes a reduction reaction; the immersion plating step: the workpiece is sent through the outlet of the reduction reaction channel into a container filled with zinc liquid for immersion plating, and the temperature of the zinc liquid is 420‑580 °C. The present invention can reduce the production process, avoid pickling, alkali washing, immersion in flux, drying after immersion in flux, immersion in zinc with flux, serious pollution links and subsequent treatment of waste liquid, waste water, and waste gas, reducing Reduce energy consumption, reduce pollution, greatly reduce labor costs and equipment costs, and improve production efficiency.

The invention provides a vertical pipe type sludge-water separation treating device, which is mainly characterized in that the tank wall of a vertical pipe type sludge-water separation treating unit is a pipe wall 1 and a tank bottom plate 2 of the tank body, a tank top plate 3 at the upper part has an inspection well, each vertical pipe type sludge-water separation treating unit is divided by a space partition board 5 and a filler arrangement plate 6 inside, below the filler arrangement plate is a suspension filler 7, on the space partition board 5 are settling sludge guide pipes 8, water holes 9 are formed in the filler arrangement plate 6, a cleaning pipe 10 has an upper opening located at the inspection well position and a lower opening located at the space partition board 5, water inlet and outlet pipes 4 are arranged above the filler arrangement plate 6 and between the filler arrangement plate 6 and the space partition board 5, a settling sludge guide pipe 20 is installed at the settling sludge hole 19, and a sludge guide pipe sludge discharge opening 21 is formed below the space partition board 5. The inventive device can simplify construction, separate sewage treatment from sludge treatment, reduce the influence of sludge on sewage treatment, and facilitate stabilization of controllability of water quality and process of sewage treatment.

The invention discloses a recovery method for salt crystals in brine refining mother liquor used for salt production. The recovery method comprises the following steps: (1) subjecting well brine to raw brine clarification, addition of chemicals for a reaction and refined brine clarification, then carrying out centrifugation with a centrifuge to remove liquid and subjecting salt slurry obtained after centrifugation to thickening; (2) after thickening, subjecting the salt slurry to standing, allowing supernatant to enter a mother liquor tank through overflowing, pumping salt slurry deposited on the bottom of the mother liquor tank into a dissolving barrel, adding water to fully dissolve the deposited salt slurry and carrying out filtering so as to obtain filtered liquid; (3) allowing the filtered liquid to pass through ion exchange resin so as to remove Ca<2+>, Mg<2+> and a part of sulfate ions, then carrying out heating and pressure-reduced evaporation, maintaining temperature and pressure unchanged after occurrence of crystals, and adding a mixed solution of hydrogen peroxide and ethanol for solvating-out; and (4) after solvating-out, carrying out filtering and pumping obtained filtrate into an evaporator for evaporative crystallization so as to form salt crystals. The recovery method saves cost and can increase output worth3, 400, 000 yuan every year on the base of the annual output of 1, 000, 000 tones of a conventional salt-Glauber's salt combined production apparatus; and impurity ions like Ca<2+>, Mg<2+> and SO4<2-> in the recovered salt crystals are substantially removed.

An electrochemical deposition system having two or more electrochemical deposition modules arranged on a common platform and configured for depositing one or more metals on a substrate is described. Each electrochemical deposition module includes an anode compartment configured to contain a volume of anolyte fluid, a cathode compartment configured to contain a volume of catholyte fluid, and a membrane separating the anode compartment from the cathode compartment. Each electrochemical deposition module further includes a workpiece holder configured to hold opposing edges of a flexible workpiecebetween first and second leg members via a clamping mechanism, and a loader module configured to position the flexible workpiece in the workpiece holder while holding the flexible workpiece using anair cushion on each opposing planar surface of the flexible workpiece.