42results about How to "Wide process adaptability" patented technology

The invention discloses a method for recycling heavy metal pollution wastes, which comprises the following steps of: 1) the pulping of raw materials; 2) acid leaching, namely, adding pulp obtained in the step 1 into a dilute sulphuric acid for filtration, and taking filter residues as the raw materials of bricks or cement; 3) copper displacement, namely, displacing copper out of filtrate in the step 2 with iron; 4) the preparation of ferrum-chrome-alum, namely, adding alkaline substances and an oxidant into the filtrate obtained in the step 3, adjusting a PH value, and precipitating and filter-pressing the mixed solution to obtain the ferrum-chrome-alum; and 5) the preparation of sponge cadmium, namely, displacing cadmium out of the filtrate obtained in the step 4 with zinc. The process has the advantages of suitability for the treatment of waste residues and waste liquor in a plurality of industries of electroplating, surface treatment, heavy metal smelting, chemical engineering and the like, no need of heating liquid-phase materials, the realization of closed cycle, and the capacity of extracting a plurality of valuable metals, such as Cu, Cr, Cd, Ni, Co, Zn and the like, directly taking the wastes obtained after the metal separation as the raw materials of the bricks or cement, and saving coal and electricity amounting to 20,000 T standard coal and 40,000-ton water per year for enterprises recycling 5,000-ton metals per year.

The invention discloses a self-lifting sliding and turnover construction system and a construction method. The system comprises a framework type combination crown block hanging bracket device and a semi-automatic turnover device. The construction method comprises steps as follows: construction of reinforcing steel bars of a pier body, large-area formwork bracket splicing, sliding formwork bracket splicing, self-lifting hanging bracket splicing, concrete pouring, sliding formwork bracket sliding rising, large-area formwork turnover and next stage of reinforcing steel bar construction. A self-lifting technique can be adopted, auxiliary construction by mechanical equipment such as a tower crane, a truck crane and the like can be omitted, high-pier construction is realized with the self-lifting technique, and the method guarantees the construction speed of a sliding formwork and the appearance quality of a turnover formwork without relying on external machines.

The production method of soft magnetic alloy powder includes the following steps: smelting soft magnetic mother alloy, making molten metal be quickly coagulated into crystalline sheet alloy, breaking the sheet alloy to obtain alloy powder, and making the alloy powder undergo the processes of activation, annealing treatment and passivation treatment. Said soft magnetic alloy powder is low in oxygen content, stable in property and good in magnetic powder core performance.

The invention relates to a novel exposure blueprinting method for a screen printing plate. The method comprises steps as follows: firstly, a PET film is produced; then a base of a clean stainless steel mesh is dried after being pre-coated with an a-component photosensitive adhesive, the total thickness of 1 mu m is reserved during scraping coating of a printing surface, then the printing surface is coated with two lines of a b-component photosensitive adhesive, meanwhile, the PET film is applied slowly from bottom to top, drying is performed, the PET film is torn down when the printing surface is almost dried and drying is performed continuously until the printing surface is not sticky; finally, exposure can be performed when the organic PET film is torn down when the printing surface is almost dried and drying is performed continuously until the printing surface is not sticky, the set value of the exposure is the lower limit value of the exposure peek, and the stainless steel screen printing plate with a required printing graph is produced. A full-automatic precise coating machine and a parallel light printer are used in the method, the flatness of a photosensitive adhesive film surface coated with the technology is excellent, and the surface of an exposure mask is subjected to ionization treatment, so that the surface of the produced screen printing plate is smoother than that of a traditional screen printing plate, and the graph duplication is more accurate.

The invention provides a multifunctional paint used for outer package of wine box and a preparation method thereof. The multifunctional paint comprises the following components by weight: 10-30 parts of functional acrylic resin, 5-8 parts of keto-aldehyde resin, 2-10 parts of cellulose acetate butyrate resin with low molecular weight, 0.1-1 part of auxiliary agent and 60-80 parts of organic solvent. According to the invention, the acrylic resin containing a functional group is matched with keto-aldehyde resin, cellulose acetate butyrate resin with low molecular weight is combined, so that the paint has the advantages of good adhesion fastness, bright moulding rainbow effect and good printing adaptability.

The invention provides a connecting method for endless rolled intermediate slabs. The method comprises the following steps: aligning the head and tail end portions of front and back intermediate slabs; rubbing the tail portion end surface of the front intermediate slab and the head portion end surface of the back intermediate slab; applying a forward force to the back intermediate slab in the rubbing period; and when the temperature of the connecting end surface of the front and back intermediate slabs is raised to a viscoplastic state, connecting the head of the back intermediate slab forward together with the tail portion of the front intermediate slab under the action of an upsetting force. The method provided by the invention is high in connecting strength, fast in connecting speed and low in energy consumption and is suitable for connecting slabs made from different materials.

The invention discloses a furniture screen printing internal engraving 3D (three-dimensional) paint process, which is characterized in that a technical flow process comprises the following steps that (1) puttying is carried out, and a substrate layer is obtained; (2) a nanometer sealing primer is sprayed, the grinding is carried out, and a sealing primer layer is obtained; (3) PE (polyethylene) primer is sprayed, and an upper primer layer is obtained; (4) 3D image preparation and decomposition is carried out, which means that 3D images to be subjected to screen printing are prepared and are decomposed into a plurality of transverse plane pattern layers and a plurality of longitudinal cloud point 3D pattern layers; (5) the multilayer screen printing and the finish paint spraying are carried out, and a plurality of compound finish paint layers with pattern layers are obtained; (6) the laser internal engraving is carried out, and longitudinally and transversely nested 3D images are formed. The process has the advantages that through the multilayer screen printing and the internal engraving, the 3D images with 3D effect are formed on products, and vivid and visual effects are realized. The invention also discloses epoxy modified waterborne polyurethane, which has the characteristics of high bonding capability, high modulus and intensity, high temperature resistance and good heat stability, and is suitable for the laser internal engraving.

The invention provides intermediate slab connecting equipment. The intermediate slab connecting equipment comprises an outlet clamping device for clamping a front intermediate slab, an inlet clamping device for clamping a back intermediate slab, a friction blade for rubbing the connecting end surfaces of the front intermediate slab and the back intermediate slab, and an upsetting device for applying upsetting force; the friction blade is positioned between the inlet clamping device and the outlet clamping device; and the friction blade is connected with a friction blade vibration device. The friction blade extends between the front intermediate slab and the back intermediate slab for rubbing the end surfaces of the two, so that the end surfaces of the intermediate slabs and near areas are quickly heated to reach a viscoplasticity state; the upsetting device applies the upsetting force to the back intermediate slab; after the friction blade is shifted away, the front intermediate slab is connected with the back intermediate slab. The intermediate slab connecting equipment is simple in structure, high in connecting strength, fast in connecting speed, low in energy consumption and suitable for connecting slabs with different materials.

The invention relates to a realization method for a detection controller for valve position adjustment abnormity of an industrial pulverized coal boiler. The detection controller comprises a multi-channel proportional controller, an electric adjustment valve, an upper threshold comparator, a lower threshold comparator, a delayer I, a delayer II, an or-logic gate, a PLC/DCS controller, a DO module, an AI input module and an AO output module. During the combustion process of pulverized coal, when error values between the control values and the feedback values of the adjustment valve exceed maximum allowance upper limit values and lower limit values, the feedback values pass through the threshold comparators; timing alarming control is started; and experienced time is error overrun time. If the error overrun time exceeds preset normal input response time, logic signals output by the delayers drive the intermediate relay of PLC or DCS, and a program alarming and combustion interrupting signal is output. Compared with a conventional special valve positioning controller which consists of PCB columnwise elements, the detection controller has the obvious characteristics of low cost, flexible configuration, wide technological applicability and high antijamming capability.

The invention provides high-strength hull steel with excellent low-temperature toughness and a one-steel multi-level heat treatment technology of the hull steel. The hull steel comprises the chemicalcomponents of, by mass, 0.12-0.15% of C, 0.20-0.30% of Si, 1.40-1.70% of Mn, 0.12-0.15% of Ni, 0.16-0.25% of Cr, 0.08-0.12% of Mo, 0.020-0.030% of Nb, 0.012-0.018% of Ti, less than or equal to 0.02% of V, less than or equal to 0.015% of P, less than or equal to 0.002% of S, 0.0020-0.0030% of B and the balance Fe and unavoidable impurities. According to the technology, a high-strength hull steel plate with excellent low-temperature toughness can be produced by combining different quenching technologies with the tempering technology, wherein the maximum thickness of the hull steel plate is 50 mmand the hull steel plate can meet the requirement of E460-E550 strength levels. The alloy cost is low, and the technology adaptability is wide. The high-strength hull steel with the excellent low-temperature toughness and the one-steel multi-level heat treatment technology of the hull steel solve the problems that different components are needed by the steel plates with different steel levels anddifferent thicknesses, and production organization is difficult. Flexible manufacturing of one-steel and multi-level is achieved.