44results about How to "Clear production process" patented technology

The invention discloses a processing method of an organic liquid fertilizer, which comprises the following steps: using soybean curb residues and bean curb wastewater as raw materials; taking beer yeast, Bacillus subtilis and lactic acid bacteria as composite strains; and putting the composite strains into a fermentation tank for fermentation in a sterile environment to prepare into the organic liquid fertilizer. In the processing method, the processing technology is simple, and the purpose of changing waste into value can be reached.

The invention relates to a flexible production line for medium and large vehicle air conditioners. The flexible production line comprises unpowered roller workbenches, a lifting platform, rotating roller transitional workbenches and transitional plates. The production line can be designed in a through type or a bending shape according to sites, then a corresponding number of unpowered roller workbenches and rotating roller transitional workbenches are arranged according to the specific production process, each roller workbench represents one process, each roller workbench is provided with one transitional plate, components of the medium and large vehicle air conditioners are borne by the transitional plates to be assembled in the processes one by one, and the assembling processes are basically completed when the components are transferred to the lifting platform. The flexible production line disclosed by the invention has the beneficial effects that the production processes are clear, the components are moved, people do not need to move, the labor intensity of workers is reduced, and the investment of corresponding devices and tools is reduced; and the adopted devices are suitable for assembly line work, the production efficiency is improved, different products are better in consistency, and the flexible production line is suitable for the multi-species and small-batch production of medium and large vehicle air conditioners.

The invention provides a TEV protease variant, a fusion protein, a preparation method and uses thereof, particularly a screened TEV protease variant with unique properties, and a fusion protein. According to the invention, polypeptides can be rapidly and efficiently prepared through TEV protease variant and polypeptide fusion expression so as to solve the problems existing in the current polypeptide recombinant production process.

The invention relates to the technical field of wallboard production, in particular to a wallboard production line which comprises a product off-line station, a line body, a cleaning station, a ceramic tile placing station, a gluing station, a substrate placing station, a pressing plate placing and inspection station, a curing station and a lifting platform II. The line body is placed at the tailend of the product off-line station. The cleaning station, the ceramic tile placing station, the gluing station, the substrate placing station, the pressing plate placing and inspection station and the curing station are fixedly connected to the top of the line body, and the ceramic tile placing station is located at the tail end of the cleaning station. According to the wallboard production line,feeding, conveying, tool cleaning, manual ceramic tile placing, gluing, substrate pasting by a robot, pressing plate placing and curing drying are orderly combined, the production process is clear, the automation degree is high, the occupied workshop space is small, the pollution source is few, the power consumption is low, the cost is low, the maintenance is easy, the robot is adopted for substrate placing, positioning is accurate, the production efficiency is improved, and therefore the enterprise income is improved.

The invention belongs to the technical field of building materials, and relates to an archaized solid wood floor, in particular to an archaized solid wood composite floor. A crisscross multilayer board base material layer is taken as a main body, the surface of the multilayer board base material layer is coated with adhesive to form a bonding layer, a surface layer is attached, a special archaizedprocessing layer is further arranged on the surface layer, and the uppermost layer is a UV paint layer. The special archaized layer is located between the surface layer and the surface UV paint layer, the thickness of the special archaized layer is between 0.1 mm and 1 mm, and the special archaized layer comprises a hand scraping archaized layer, a wire drawing process layer, a sawtooth grain treatment layer, a color coating process layer, a sand mark treatment layer and a color wiping treatment layer from top to bottom. The present invention also discloses a production process. According tothe archaized solid wood composite floor, the natural texture and the natural color of the wood are retained, the production process is simple, no distortion is lost in the texture pattern, the floorhas good visual characteristics through post-processing, and has relatively high paint adhesion and the like, and the physical and mechanical properties of the produced archaized floor meet the requirements of various indexes.

The large and medium-sized automobile air conditioner flexible production line of the present invention includes a non-powered roller workbench, a lifting platform, a rotating roller transition workbench and a transition plate; it can be designed as a straight-through or curved production line according to the site, and then the corresponding number can be set according to the specific production process The non-powered roller workbench and the rotating transition roller workbench, each roller workbench represents a process, and a transition plate is set on each roller workbench, and the transition plate carries large and medium-sized automotive air-conditioning components for assembly one by one. The assembly process is basically completed when it is transferred to the lifting platform. The positive effects of the present invention are: the production process is clear, the parts are moving, the labor intensity of workers is reduced, and the input of corresponding equipment and tooling is reduced; the equipment used is suitable for assembly line operation, which improves production efficiency, and the consistency of different products is relatively high. Well, it can adapt to the production of large and medium-sized automotive air conditioners with many varieties and small batches.

The invention discloses a novel process for producing manganese sulfate by combination of a pyrogenic process and a wet process. The novel process comprises the steps: (1), roasting with anthracite culm to obtain roasted manganese powder; (2), mixing the roasted manganese powder with a secondary solution and / or water for pulping, adding sulfuric acid, adding iron pyrite, performing a thermal reaction, filtering to obtain primary slag and a primary liquid; (3), pulping the primary slag by using water and / or third solution, adding sulfuric acid, adding iron pyrite, performing a thermal reaction, filtering to obtain secondary slag and a secondary liquid, rinsing and filtering the secondary slag to obtain third slag and a third liquid, discharging the third slag; and (4), removing iron from the primary liquid, removing heavy metals, standing, heating and concentrating and crystallizing, dewatering and drying to obtain the manganese sulfate. The novel process has the beneficial effects that (1), the content of full manganese in the manganese slag reaches below 4 percent, the content of tetravalent manganese slag reaches below 0.6 percent, the metal recovery rate reaches above 82 percent, and the mine consumption cost is low; and (2), the main content of a manganese sulfate product reaches above 98.5 percent, the content of a water insoluble is within 0.02 percent, the content of impurities is within 0.3 percent, and the content of heavy metal elements is within 6 ppm.

The present invention discloses a large diameter copper pipe production process, which comprises: 1, forging and stamping, wherein a furnace temperature is increased to 800-900 DEG C, a cooper ingot is forged and stamped into a copper rod, and thermal insulation is performed for 2-3 h; 2, reverse extrusion, wherein the copper ingot is subjected to position limitation by using an outer mold, the cooper rod is subjected to reverse extrusion through an inner mold to form a cooper pipe having the bottom, and the extruded cooper pipe is subjected to thermal insulation for 0.5 h and then is cooled to achieve a room temperature, wherein electric heating is performed on the inner mold and the outer mold during reverse extrusion, such that it is ensured that the temperatures of the inner mold and the outer mold are maintained at 400-450 DEG C; and 3, cold extrusion, wherein the cooper pipe is subjected to cold extrusion to stretch so as to achieve the required size, and thermal insulation is performed for 3-4 h. According to the present invention, the manufacturing process is clear, the temperature and other parameters are reasonably controlled, and particularly the molds are electrically heated during reverse extrusion, such that it is ensured that the cooper rod hardness is moderate and cracking does not occur during the reverse extrusion process so as to ensure manufacture success and quality.

The invention discloses a mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials. The mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials comprises a cutter bit (1) and a square cutter handle (2). A boss (4) is arranged on the cutter bit (1). A cutter blade groove (5) is formed in the upper surface of the cutter bit (1). A fixing screw hole (8) is formed in a groove bottom face (6). A receding hole groove (9) is formed in the intersection part of two connected groove walls (7). The mechanically-clamped type cutter bar capable of overcoming stress concentration and saving materials has the beneficial effects that the manufacturing cost is low; the machining range of a cutter is enlarged; the structure is reasonable and reliable; a cutter blade is replaced easily and rapidly; material consumption is reduced.

The invention discloses a wax mold preparation method for investment casting precision casting. The wax mold preparation method comprises the following steps that (1), mold closing is performed; (2),wax material preparation is carried out, wherein the wax material is added into a heat preservation furnace of a wax pressing machine; the temperature is raised to 90 DEG c to 100 DEG c, and after thewax material is completely melted, silicon carbide particles with the particle size of 6-14 [mu]m and the content of 3-5 wt% are added while the mixture is stirred, standing for 20-30 minutes is performed after the silicon carbide particles are completely added; cooling water with the temperature of 20-25 DEG c is injected into a cooling groove of the wax pressing machine for reducing the temperature of the wax to be 55-60 DEG c for later use; and (3), wax mold pressing is carried out, wherein a wax injection gun is used for injecting the wax material in the wax pressing machine into a mold cavity at the pressure of 0.3-0.5MPa, and when the wax is discharged from exhaust holes, wax injection is stopped; next, a mold water cooling system is started, and the flow is controlled to be 5-8 L / min; and when a temperature measurement thermocouple detects that the temperature of the wax is less than or equal to 35 DEG c, the mold is opened to take out the wax mold. According to the method, theeffect of enhancing the strength of the wax mold is achieved through the framework, the size contraction and deformation of the wax mold can be reduced effectively, the precision of the prepared waxmold can reach + / -0.5 mm, and the shrinkage rate is stabilized within 0.40%.

The invention discloses a production process for a hydraulic suspension damper. The method comprises the following steps of 1, stamping, wherein roll materials are put into a stamping die, a hydraulic suspension is fixed on a fixing mechanism of a punching machine for position fixation, and a driving punch of a driving mechanism is utilized to conduct stamping on the hydraulic suspension; 2, trimming and polishing, wherein trimming treatment is conducted on the stamped hydraulic suspension, and then the surface of the hydraulic suspension is polished to be smooth; 3, aluminum casting, wherein the temperature of a resistance aluminum melting furnace is set to 600-800 DEG C, heating is conducted for 20-30 minutes at first, pure aluminum is added into the resistance aluminum melting furnace to be completely melted, the hydraulic suspension treated in the step 2 is placed into the stamping die, a hydraulic aluminum casting machine is turned on to conduct aluminum casting operation on the hydraulic suspension, and after the aluminum casting operation is finished, the aluminum-casted hydraulic suspension is detected. The production process is perfect, the production efficiency is high, the damping effect is good, and it is ensured that the hydraulic suspension damper is high in quality, stable in performance and long in service life.