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33results about How to "No secondary processing" patented technology

Method for processing timing gear chamber

InactiveCN102240885AIncrease in production shareNo secondary processingEngineeringMechanical engineering
The invention discloses a method for processing a timing gear chamber. The method sequentially comprises the following steps of: (1) performing rough mill on the main surface of the gear chamber by using a milling machine; (2) performing rough mill on the installation surface of the gear chamber; (3) performing finish milling on the main surface of the gear chamber; (4) performing finish milling on the installation surface of the gear chamber; (5) refining the installation surface of the gear chamber in the processing center, wherein two installation holes between which the distance is farthest on the installation surface are taken as positioning basic holes; and processing all holes at the periphery of the gear chamber; (6) refining the main surface of the gear chamber in the processing center, drilling a central hole and a bottom hole, chambering, tapping, performing rough boring on all holes, and performing finish boring on all holes; (7) milling the top surface of the gear chamber; (8) milling the side of the gear chamber; (9) milling the bottom of the gear chamber; (10) drilling and tapping the top hole of the gear chamber, chambering an orifice, and tapping; (11) drilling and tapping the side of the gear chamber, drilling the side hole and countersinking; (12) performing secondary drilling on the side hole of the gear chamber, chambering and tapping; and (13) cleaning and pressuring. The method for processing the timing gear chamber has high production efficiency, and the produced gear chamber has high accuracy and consistency.
Owner:TIANJIN ZHONGDA PRECISION MACHINERY

Cutting method for two-dimensional laser cutting tubular product

The invention provides a cutting method for a two-dimensional laser cutting tubular product. The cutting method comprises the following steps: step 1, setting a to-be-cut path of the tubular product and dividing the to-be-cut path into three sections: a first non-edge-shared contour and an edge-shared contour located at one end and a second non-edge-shared contour located at the other end, wherein the edge-shared contour is connected to the first non-edge-shared contour and the second non-edge-shared contour; step 2, cutting the first non-edge-shared contour by using a two-dimensional cutting head; step 3, cutting the second non-edge-shared contour by using the two-dimensional cutting head; and step 4, cutting the edge-shared contour by using the two-dimensional cutting head in a one-cut ring-cutting manner. The cutting method provided by the invention cuts the tubular product by using the two-dimensional cutting head, so that an effect of three-dimensional swing angle cutting can be realized, the function of the two-dimensional cutting head is enhanced and the machining range of the two-dimensional cutting head is expanded, the actual production demand is satisfied, and the shortcoming of using limitation of the two-dimensional cutting head is overcome.
Owner:HANS LASER TECH IND GRP CO LTD +1

Caterpillar type folding conveying stacker

The invention discloses a caterpillar type folding conveying stacker which comprises a base, a caterpillar connected with the base, a hydraulic oil station and a PLC control device, wherein an upper pitching supporting arm and a lower pitching supporting arm supporting main beam are separately arranged on positions, along the two ends of a caterpillar travelling direction, of the base; the two ends of the main beam are separately connected with an upper folding beam and a lower folding beam; conveying slots are formed in the top of the upper folding beam, the top of the main beam and the top of the lower folding beam; and an inclined downward conveying channel is formed among the upper folding beam, the main beam and the lower folding beam by separately regulating angles of the upper pitching supporting arm and the lower pitching supporting arm through the upper folding beam and the lower folding beam. A feeder of the caterpillar type folding conveying stacker is suitable for various road surfaces with complex working conditions. Through a luffing device controlled by a hydraulic control system, pollution, on the environment, of dust in a stacking process can be reduced; circular-arc stacking is performed by rotating in situ, so that an operation area can be effectively increased, and stacking continuity is effectively improved; and moreover, the caterpillar type folding conveying stacker is light in equipment, is compact in structure and is convenient to move.
Owner:NANTONG UP MACHINERY ENG

Magnesium-containing raw material recycling treatment method

The invention relates to a magnesium-containing raw material recycling treatment method. The magnesium-containing raw material recycling treatment method comprises the steps that S1, magnesium reaction liquid containing sulfate and a magnesium cosolvent are mixed with magnesium-containing raw materials to perform reaction, the reaction system PH value is controlled to be less than 9.0, and after the reaction is finished, solid-liquid separation is performed to obtain a magnesium-containing solution A1 and calcium-containing residue B1; S2, the magnesium-containing solution A1 is reacted with aprecipitant, the reaction system PH value is controlled to be 5.5-12.0, and after the reaction is finished, the solid-liquid separation is performed to obtain a magnesium sediment solution A2 and magnesium-containing sediment B2; S3, calcium reaction liquid containing a calcium solvent, a calcium cosolvent and the sulfate is mixed with the calcium-containing residue B1 to perform the reaction, the reaction system PH value is controlled to be 5.5-12.0, and after the reaction is finished, the solid-liquid separation is performed to obtain a calcium-containing solution A3 and tail residue B3; and S4, the PH value of the calcium-containing solution A3 is adjusted to be 4.0-9.5, calcium sulfate is made to precipitate from the calcium-containing solution A3, and the solid-liquid separation is performed to obtain a calcium sediment solution A4 and calcium-containing sediment B4 containing the calcium sulfate. By means of the magnesium-containing raw material recycling treatment method, underthe condition of not consuming additional raw materials, magnesium, calcium and impurities in low-grade magnesium-containing raw materials are separated, corresponding calcium and magnesium productsare obtained, the magnesium resource recycling cost is reduced, and environmental pollution is reduced.
Owner:北京中金瑞丰环保科技有限公司

Device for directly drawing helical circular quartz tube by continuous-melt method and drawing method

The invention discloses a device for directly drawing a helical circular quartz tube by a continuous-melt method and a method for drawing the helical circular quartz tube by the device. The device comprises a rotary winding which is arranged below a discharge hole of a continuous-melt furnace; the rotary winding machine is fixed on a support plate through a support frame; a left and right movement mechanism for driving the rotary winding machine to move left and right is arranged at the lower part of the support plate; a front and back movement mechanism is arranged at the lower part of the left and right movement mechanism; the lower end of the front and back movement mechanism is arranged on a lifting mechanism; the rotary winding machine comprises a rotary drum; the rotary drum is fixed on a rotating shaft; the rotating shaft is connected with a drive motor through a drive device; a quartz tube pressing tube is arranged on the rotary drum; a quartz tube descending tractor is arranged between a discharge hole of the continuous-melt furnace and the rotary winding machine; and a quartz tube cutter is arranged between the quartz tube descending tractor and the rotary winding machine. The helical circular quartz tube is formed by molding once; secondary processing is removed; an energy source is saved; time and labor are saved; and the helical circular quartz tube is even in screw pitch and stable in quality.
Owner:LIANYUNGANG HUAYUAN QUARTZ PROD

Novel flue gas desulphurization apparatus with hydrogen peroxide

PendingCN107961669AEnhance the efficiency of atomization absorptionGuaranteed desulfurization efficiencyDispersed particle separationFlue gasPhysical chemistry
The invention relates to the technical field of chemical equipment, and discloses a novel flue gas desulphurization apparatus with hydrogen peroxide. The apparatus comprises a hydrogen peroxide tank,one side of the hydrogen peroxide tank is fixedly connected with a hydrogen peroxide pipe, the other side of the hydrogen peroxide tank is fixedly connected with one side of a first support plate, thetop of the first support plate is fixedly connected with the bottom of a first centrifugal pump, one side of the first centrifugal pump far from the hydrogen peroxide tank is fixedly connected with one side of a first tee joint, and the bottom of the first tee joint is fixedly connected with one end of a first water outlet pipe. The novel flue gas desulphurization apparatus with hydrogen peroxideis provided with a spray rod which is fixedly connected with one end of a second water inlet pipe and nozzles which are fixedly connected to the surface of the spray rod, a diluted hydrogen peroxidesolution is atomized by nozzles, a lot of liquid drops of small dimensions are formed, and the liquid drops and flue gas in the absorbing tower are fully contacted, SO2 gas in the flue gas is absorbed; and at the same time, the three-layer spiral tapered spray rod can enhance efficiency of atomization absorption of the apparatus, and desulphurization efficiency is guaranteed at 95% or above.
Owner:XIANGYANG XIANTIANXIA ENVIRONMENTAL PROTECTION EQUIP

Transmission shaft torsional vibration crack welding system and method fused laser machining and 3D printing

The invention relates to a transmission shaft torsional vibration crack welding system and method fused with laser machining and 3D printing. The transmission shaft torsional vibration crack welding system comprises a laser machining module capable of conducting laser scanning and laser welding function switching, and a 3D printing module with a 3D printing filling solder function. According to the system, wide-depth cracks generated by torsional vibration of a transmission shaft are welded through a filling mode, and filling can realize precise machining through laser scanning and 3D printing; secondly, characteristics of laser machining are utilized, the machining belongs to non-contact point machining, the machining time is short, the cooling speed is high, the heat influence area is small, the secondary machining problem after wide-depth seam welding is eliminated, the mechanical strength of the transmission shaft after welding machining can be effectively guaranteed, and the secondary utilization of the torsional vibration damaged shaft can be realized; and finally, the system can achieve combined control of the two modules and the three functions, starting and stopping of thethree functions are completed through mode switching and control instructions, the system is simplified, and the control efficiency is improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE

Vacuum cementation furnace 750 degrees centigrade low temperature cementation process of precision parts

The invention provides a vacuum cementation furnace 750 degrees centigrade low temperature cementation process of precision parts. Cementation treatment can be carried out on metal parts at a temperature of 750 degrees centigrade; the metal parts treated by using the vacuum cementation furnace 750 degrees centigrade low temperature cementation process of the precision parts can realize uniform carburized layer, higher quenching hardness and steeper carburized layer gradient; the metal parts can realize lower fragility after annealing treatment and bending test; the bent surfaces of the metal parts have no phenomena of surface peeling, lifting and fracture; a vacuum cementation furnace using the vacuum cementation furnace 750 degrees centigrade low temperature cementation process of the precision parts does not generate intergranular oxidation in the carburizing process of the metal parts and can enhance the fatigue resistance of a workpiece material; and moreover, the surfaces of the carburized and quenched metal parts cannot generate black carbon deposit to be beneficial for follow-up electroplating processing; in addition, dotted or block-shaped carbide and residual austenite arealso not seen in the carburized layers of the produced parts; and the carburized layer and a matrix possess good bonding strength and good toughness; and the organization structure is excellent.
Owner:刘小阳

Two-dimensional laser cutting pipe cutting method

The invention provides a cutting method for a two-dimensional laser cutting tubular product. The cutting method comprises the following steps: step 1, setting a to-be-cut path of the tubular product and dividing the to-be-cut path into three sections: a first non-edge-shared contour and an edge-shared contour located at one end and a second non-edge-shared contour located at the other end, wherein the edge-shared contour is connected to the first non-edge-shared contour and the second non-edge-shared contour; step 2, cutting the first non-edge-shared contour by using a two-dimensional cutting head; step 3, cutting the second non-edge-shared contour by using the two-dimensional cutting head; and step 4, cutting the edge-shared contour by using the two-dimensional cutting head in a one-cut ring-cutting manner. The cutting method provided by the invention cuts the tubular product by using the two-dimensional cutting head, so that an effect of three-dimensional swing angle cutting can be realized, the function of the two-dimensional cutting head is enhanced and the machining range of the two-dimensional cutting head is expanded, the actual production demand is satisfied, and the shortcoming of using limitation of the two-dimensional cutting head is overcome.
Owner:HANS LASER TECH IND GRP CO LTD +1

A kind of resource processing method of magnesium-containing raw material

The present invention relates to a method for recycling magnesium-containing raw materials, which comprises steps: S1: mixing and reacting a magnesium reaction solution containing sulfate and a magnesium co-solvent with magnesium-containing raw materials, controlling the pH value of the reaction system to be less than 9.0, and , solid-liquid separation to obtain magnesium-containing solution A1 and calcium-containing slag B1; S2: react magnesium-containing solution A1 with a precipitant, control the pH value of the reaction system to 5.5-12.0, after the reaction, solid-liquid separation, obtain magnesium precipitation solution A2 and Magnesium-containing precipitation B2; S3: the calcium reaction solution containing calcium solvent, calcium co-solvent and sulfate and the calcium-containing slag B1 are mixed and reacted, and the pH value of the reaction system is controlled to 5.5-12.0. After the reaction is completed, the solid-liquid separation is obtained. Calcium-containing solution A3 and tailings B3; S4: adjust the pH value of calcium-containing solution A3 to 4.0-9.5, calcium sulfate is precipitated in calcium-containing solution A3, and solid-liquid separation is obtained to obtain calcium precipitation solution A4 and calcium-containing precipitation containing calcium sulfate B4. The present invention separates magnesium and calcium from impurities in low-grade magnesium-containing raw materials without consuming additional raw materials to obtain corresponding calcium and magnesium products, reduces the cost of recycling magnesium resources, and reduces environmental pollution.
Owner:北京中金瑞丰环保科技有限公司

Positioning mechanism for iron parts on left and right sides of automobile sunroof products

The invention relates to a positioning mechanism for iron parts on left and right sides of automobile sunroof products. The positioning mechanism comprises an outer positioning assembly and an inner positioning assembly, wherein the outer positioning assembly comprises a bottom plate and a driving air cylinder, a diagonal pressing block, a guiding rail and an ejection spring, which are fixed on the bottom plate; the guiding rail is movably connected with a side pulling slider; one end of the ejection spring is connected with the side, close to an iron part, of the side pulling slider; the other end of the ejection spring abuts the iron part; the inner positioning assembly comprises a driving gas cylinder, an ejection member and a connecting rod member, which are fixed on a lower mold; a plurality of positioning pins are movably penetrated in the ejection member; the connecting rod member is used for transferring the pushing force of the driving gas cylinder to the ejection member; andone end of the positioning pin is pushed into a positioning hole or the positioning pin in the positioning hole is pulled back to ejection member through the ejection member. Compared with the prior art, the positioning mechanism saves the time of secondary ejection after ejecting and opening a clamping block, reduces the flashing phenomenon during the injection molding, and improves the product yield.
Owner:福耀玻璃(苏州)有限公司

T-shaped piston on general gasoline machine

The invention discloses a T-shaped piston on a general gasoline machine. The T-shaped piston comprises a piston body which is integrally in a T shape, the piston body comprises a head portion and a skirt portion, the head portion comprises a piston ring, the top surface of the piston ring is of a flat top structure, the periphery of the piston ring is provided with at least two circular grooves which are parallelly distributed at intervals in the axial direction, the thickness of each circular groove is 1 mm, the skirt portion comprises a front arc surface, a left straight surface, a reverse arc surface and a right straight surface which are connected end to end to form a frame-shaped structure, the left straight surface and the right straight surface are provided with a left pin shaft sleeve tube and a right pin shaft sleeve tube correspondingly, the left pin shaft sleeve tube and the right pin shaft sleeve tube are designed coaxially, the front arc surface is provided with an oil return hole which is formed by integral pressure casting, and the outer walls of the front arc surface and the reverse arc surface are matched with the outer wall of the piston ring correspondingly. By means of the T-shaped piston on the general gasoline machine, the friction force is reduced, and the service life is prolonged.
Owner:TAIZHOU HUANYANG ELECTRIC & MACHINERY

Texture processing test device based on controllable cavitation technology

The invention provides a texture processing test device based on the controllable cavitation technology. The texture processing test device has the beneficial effects that no thermal deformation exits, no secondary processing is needed, the limitation problem of a machining material is avoided, and non-parallel contact pair texture processing can be carried out. The texture processing test devicecomprises a numerical control precision moving platform, an electromagnetic loading mechanism, a water storage tank, a reflective laser-generated cavitation generator, a rotating diameter-controllablenozzle and a texture processing monitoring and feedback control system. The medium water generates a large amount of cavitation bubbles after passing through the reflective laser-generated cavitationgenerator, the cavitation bubbles are transferred to the surface of the processing material through the rotating diameter-controllable nozzle, the crushing force of the cavitation bubbles is utilizedfor texture processing, the breaking force in the machining process is controlled in real time through the texture processing monitoring and feedback control system, and meanwhile, the X-Y-directionnumerical control precision moving platform and the Z-direction electromagnetic loading mechanism achieve texturing at a given position of a workpiece.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Heat-conducting plastic cement and moulding method thereof

The invention discloses a heat-conducting plastic cement and a moulding method thereof. Nylon PA6 / PA66 is used as a base material of the heat-conducting plastic cement. The heat-conducting plastic cement is prepared by mixing aluminum nitride AlN, silicon carbide SiC, silicon trioxide Al2O3, graphite, fibrous high-thermal-conductivity carbon powder and scaly high-thermal-conductivity carbon powderwhich are used as fillers; wherein the nylon PA6 / PA66 accounts for 50 to 60wt%, the aluminum nitride AlN accounts for 3 to 5wt%, the silicon carbide SiC accounts for 4 to 6wt%, the silicon trioxide Al2O3 accounts for 5 to 8wt%, the graphite accounts for 10 to 15wt%; the fibrous high-thermal-conductivity carbon powder accounts for 6-10wt%; the scaly high-thermal-conductivity carbon powder accountsfor 6-10wt%. The moulding method of the heat-conducting plastic cement comprises the following steps: A, drying the heat-conducting plastic cement materials, wherein heating for 4-6H at the temperature of 110-130 DEG C for later use; B, by adopting following parameters, carrying out injection molding at the mold temperature of 60-100 DEG C, and the material temperature at 240-300 DEG C; the backpressure of 1-3 atmospheric pressures. Due to the application of the technical scheme, the product manufactured by the invention has the advantages of good heat-conducting property, low specific gravity and good portability; and the production period is short, insulation treatment is not needed, and the production cost is low.
Owner:苏州兆如电子有限公司
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