34results about How to "Surface quality effect" patented technology

The invention discloses a technical supplement method of a vehicle external panel, wherein, the technical supplement towards the section of the external panel comprises the steps as follows: a horizontal line is made from the tangent point of the upper surface and a circular bead of the lateral wall; the extension line of the lateral wall is made from the endpoint of the lateral wall; the vertical line of the horizontal line is made from the endpoint of the horizontal line to get a first vertical line; the vertical line of the extension line of the lateral wall is made from the endpoint of the extension line of the lateral wall to get a second vertical line; the intersection point of the first vertical line and the second vertical line is considered as the center of a circle, and the length of the second vertical line is considered as the semidiameter to make a circle to get a cavity die circular bead; the horizontal line is made from the intersection point of the cavity die circular bead and the first vertical line to get a swaging line. The technical supplement method provided by the invention not only can ensure that the surface of the finally molded external panel does not have a slip line, thereby improving the surface quality of the vehicle external panel, but the technical supplement method also reduces the designing and manufacturing period of a die and improves the production efficiency.

The invention relates to an evanescent mode vacant-shell casting technique of a double-saddle balance shaft shell. The evanescent mode vacant-shell casting technique comprises the following steps: (1) producing a double-saddle balance shaft shell and a riser foam mold by foaming copolymerization (STMMA), independently producing a pouring gate, bonding a double-saddle balance shaft shell module and the pouring riser to form a combined model; (2) roasting the combined model in a roasting room at the temperature of 50 to 60 DEG C for 24h; (3) placing the roasted combined model into a high-temperature-resisting and high-strength paint pool to be painted, then roasting the combined model in the roasting room, painting and roasting the combined model for four times, and controlling the thickness at 1.2mm to 1.8mm; (4) combining the roasted combined models again on an iron rack in a way that four combined models form on pouring body, and roasting the combined model; (5) boxing, filling sand and compacting; (6) vacuumizing a sand box, and burning the model in rich oxygen to form a vacant shell; and (7) casting.

The invention discloses economical steel with excellent comprehensive mechanical properties for a hot-dip galvanized automobile outer plate and a production method thereof, and belongs to the technical field of steel for hot-dip galvanized automobiles. The steel for the hot-dip galvanized automobile outer plate comprises the following main chemical elements of, in percentage by mass, 0.001%-0.005%of C, 0.09%-0.15% of Si, 0.40%-0.55% of Mn, 0.05%-0.07% of Ti, 0.02%-0.06% of Als, 0.035%-0.055% of P, less than or equal to 0.015% of S, less than or equal to 0.005% of N, 0.001%-0.006% of Nb, lessthan or equal to 0.0015% of B and the balance Fe and inevitable impurities. The steel for the hot-dip galvanized automobile outer plate has the advantages of being excellent in forming performance, excellent in comprehensive mechanical property, good in performance stability, high in surface quality and low in production cost, industrial large-batch stable production is achieved, and economic benefits of enterprises are good.

The invention relates to a stranded welding wire hammering machine. The stranded welding wire hammering machine comprises a hammering machine base (3), wherein a mandrel (19) is installed in the center of the hammering machine base (3) in a penetrating manner, a big gear wheel (18) is arranged at the left end of the mandrel (19), a gear ring (9) is arranged on the periphery of the big gear wheel (18), a plurality of second bearing pedestal (7) are arranged on the periphery of the right side of the big gear wheel (18), one eccentric shaft (8) is installed on each second bearing pedestal (7) in a penetrating manner, one pinion (10) is arranged on each eccentric shaft (8), a plurality of limiting sliding grooves (20) are evenly formed in a left fixing plate (21) outwards along the center of the left fixing plate (21), one hammer forging die (15) and one transmission block (13) are arranged in each limiting sliding groove (20), one crank (11) is arranged at the left end of each eccentric shaft (8), and one end of each crank (11) is connected with the corresponding transmission block (13). The working efficiency of the stranded welding wire hammering machine is high, the phenomena that stranded welding wires are slub and have internal stress can be eliminated, and the ideal surface state of the stranded welding wires can be achieved.

The invention relates to a concrete prefabricated part formwork, a concrete prefabricated part formwork platform and a concrete prefabricated part forming method. The concrete prefabricated part formwork comprises a plate surface for forming a prefabricated part, the formwork is a steel plate, and the steel plate is provided with a polished surface formed by polishing; and the plate surface is formed by the polishing surface. The polishing surface can be formed by polishing the steel plate, the machining process is simple, the cost is low, and the production efficiency is high; and after polishing, the oxide skin is effectively prevented from being adhered to the concrete to cause the non-uniform color of the prefabricated part, and the surface quality of the prefabricated part is not affected.

The invention belongs to the technical field of target material preparation, and particularly relates to a preparation process and application of an aluminum-chromium alloy target material, and the preparation process of the target material comprises the following steps: S1, preparing alloy powder; s2, the prepared alloy powder is loaded into a sheath, the left half block and the right half block of the sheath are spliced and fixed in a bolt and nut fixing mode, and cold isostatic pressing treatment is carried out; s3, carrying out primary degassing treatment on the alloy target blank; s4, carrying out first hot isostatic pressing treatment on the alloy target blank formed in the step S3, carrying out second degassing treatment, and then taking out the sheath; s5, the blank obtained after second-time degassing treatment is loaded into a sheath, and second-time hot isostatic pressing treatment is carried out; s6, the blank subjected to second-time hot isostatic pressing treatment is taken out of the sheath, machining and cleaning treatment are carried out, and vacuum heat treatment is carried out; and S7, the surface of the alloy target material obtained in the step S6 is modified with an anti-corrosion layer and a heat insulation layer. The composite material is high in compactness, uniform in crystal grain and relatively good in mechanical property.

The invention belongs to the field of machine manufacturing, and relates to a tin foil sealing gasket machining device and method. The machining device comprises an upper die, a forming punch-die, a polyurethane rubber gasket and a lower die, wherein the upper die, the forming punch-die, the polyurethane rubber gasket and the lower die are sequentially arranged from top to bottom. In addition, themachining device further comprises an aluminum foil pad arranged on the upper surface of the polyurethane rubber gasket. A blank to be punched is arranged between the forming punch-die and the aluminum foil pad. According to the machining method of the tin foil sealing gasket, a workpiece is blanked as soon as possible; the surface quality of the workpiece is ensured; and wrinkles are prevented from being formed on the workpiece appearance and the hole edge.

The invention relates to a silicon ingot bonding method, and belongs to the solar energy photovoltaic technology field. A technical scheme adopted by the silicon ingot bonding method comprises the following steps: 1, coating upper surfaces of silicon ingots with a glue layer, and bonding the glue layer with a glass pad strip; and 2, coating the metal pad strip with a glue layer after a glass pad strip and the silicon ingots are stably bonded, and pressing the glued surface of the metal pad strip on the glass pad strip. The silicon ingot bonding method is characterized in that the surfaces of the silicon ingots are glued and are bonded with the glass pad strip; and after the silicon ingots and the glass pad strip are stably bonded, the metal pad strip is glued, the metal pad strip is bonded on the glass pad strip to make the silicon ingots positioned at the bottom and the glass pad strip positioned at the upper portion of the silicon ingots, and bubbles generated by the glue layer between the silicon ingots and the glass pad strip upward overturns onto the surface of the glass pad strip from the original surfaces of the silicon ingots before initial curing, so the influences of the bubbles to the quality of the surfaces of the ingots are effectively avoided, and data comprising luminance edges, silicon drop and small edge breaking are reduced, thereby the slice yield is improved.

The invention relates to the technical field of continuous casting machine auxiliary equipment, and discloses an adjustable intelligent cooling water manufacturing filtering device for a continuous casting machine. The filtering device comprises an adjusting assembly; the adjusting assembly comprises a cam; and the lower part of the cam is movably connected with a lifting toothed plate. Through cooperation of a cam, a lifting toothed plate, a transmission gear, a toothed rod, a movable block and a hinged inclined rod, the relative positions of filter holes in a porous adjusting plate and filter holes in a filter plate are adjusted, the filter precision is improved, and therefore heat pulsation is eliminated. The device can reduce diamond deformation and corner cracks of the casting blank and improve the casting quality. The connecting block is driven to move downwards through the self weight of the filter element, and the filter element base is fixed through the matching of the short connecting rod, the mounting plate and the clamping plate; meanwhile, the whole filter element is fixed through cooperation of the upper right-angle movable plate, the lower right-angle movable plate, the diagonal draw bar and the pressing block, so that the installation process of the filter element is simple and convenient, the repair and maintenance time of the filter device is shortened, the downtime of production equipment is shorter, and then more economic benefits can be created.

The invention discloses a mesh belt solid medium isolation structure for shaving board production. A layer of kraft paper is laid on a mesh belt and can be synchronously fed along with the mesh belt,wherein an auxiliary roller for bearing a kraft paper roll is rotationally connected to the feeding end of a base below the mesh belt; a kraft paper adsorption piece is arranged below the feeding endof the conveying face of the mesh belt; a cutting assembly used for cutting off the kraft paper is arranged above the conveying face of the mesh belt; and the cutting assembly is positioned between apowder laying machine and a pressing plate assembly above the mesh belt. The mesh belt solid medium isolation structure for shaving board production is used for isolating the mesh belt from wood boardraw materials, adhesion between wood boards and the mesh belt in the pressing plate process is prevented, the influence of adhesion on the surface quality of a shaving board is prevented, the cleaning steps of the mesh belt are reduced, and the production quality and efficiency are improved. In the mesh belt solid medium isolation structure for shaving board production, the auxiliary roller for bearing the kraft paper roll and a conveying wheel share one driving source, and the whole structure is compact.

The invention relates to the technical field of metallurgy, in particular to a method for producing high-alloy non-oriented silicon steel, the high-alloy non-oriented silicon steel and application of the high-alloy non-oriented silicon steel. According to the method, by optimizing the adding amount, the adding sequence and the adding time of the alloy, the fluctuation interval of the content of each alloy component is effectively reduced, and the precision of the content of each alloy component is remarkably improved.

The present invention provides a translucent whitening cream and a manufacturing equipment thereof, the translucent whitening cream comprises a water locking agent, a whitening adjuvant, a humectant,a thickener, an adjuvant and a flavoring agent, the water locking agent is designed to isolate saliva in the oral cavity, the water locking agent comprises 11-15% of liquid paraffin, 4-6% of Vaseline,1-4% of beeswax, 2-4% of octadecanol, 4-8% of octadecanoic acid, 1-2% of span 80, 0.1-1% of gelatin, 0.1-0.5% of lauryl sodium sulfate and 3-5% of glycerin, the whitening adjuvant comprises 10-15% ofsorbitol, 5-10% of propylene glycol, 15-25% of silicon dioxide, 0.6-1.0% of sodium carboxymethyl cellulose, 0.2-0.4% of xanthan gum, 0.025% of borneol, 0.01% of borax, 1.5-3.0% of lauryl sodium sulfate, 0.4-0.7% of menthol, 0.5-0.8% of edible essence and 0.5-1.0% of titanium dioxide. According to the invention, the water locking agent does not contain alkaloid and substances with strong irritation, will not cause damage and irritation to the skin, is high in safety for long-term use, does not contain chromone with strong activity, and will not cause pollution to the skin after long-term use.

The invention discloses an anti-adhesion mesh belt for shaving board production. Kraft paper is laid on the mesh belt, wherein a negative pressure cavity for adsorbing the kraft paper is formed in themesh belt; a negative pressure assembly is arranged in an adsorption driving box on one side of the mesh belt; the air inlet end of the negative pressure assembly is connected with the negative pressure cavity; the driving force of the negative pressure assembly is shared with a conveying roller of the mesh belt; the conveying speed of the kraft paper is the same as that of the mesh belt; and a cutting assembly for cutting off the kraft paper is arranged above the mesh belt. According to the anti-adhesion mesh belt for shaving board production, the kraft paper is arranged on the mesh belt, the kraft paper can be used for separating the mesh belt from wood board particles, so that the wood board and the mesh belt are prevented from being adhered in the board pressing process, the influenceof adhesion on the surface quality of the shaving board is prevented, the cleaning steps of the mesh belt are reduced, and the production quality and efficiency are improved; and the negative pressure of the negative pressure cavity of the mesh belt is driven by the rotation of the conveying roller, so that the whole machine is compact in structure, energy is fully utilized, and energy conservation and environmental protection are achieved.

The invention discloses an automatic material distribution counting and stacking machine and a control method thereof and belongs to the field of automatic mechanical equipment. The equipment comprises a material distribution mechanism and a conveying mechanism. The material distribution mechanism comprises a driving cylinder and a material receiving plate. The material receiving plate is used for receiving or putting down materials, and the driving cylinder drives the material receiving plate to be opened or closed. The conveying mechanism receives the materials falling from the material receiving plate and conveys the materials. The material distribution mechanism is provided with a material distribution proximity switch, when the material receiving plate receives the materials, the material distribution proximity switch generates induction signals and transmits the signals to a counter, and therefore automatic counting can be achieved. A magnetic switch is arranged on a cylinder body of the driving cylinder, a magnetic ring installed in a piston rod in the cylinder body can be inducted, and therefore electric signals are generated. Blades cam be stacked through the equipment, automatic operation is achieved, counting is accurate, high efficiency is achieved, no manual intervention is needed, the surfaces of the blades are not damaged, and high safety is achieved. The control method of the automatic material distribution counting and stacking machine can control the equipment to complete counting and stacking operation of the blades.

The invention discloses a drying chamber capable of replacing an air valve by adjusting an inserting plate, and relates to the technical field of drying. The drying chamber comprises a temperature rising and heat supply unit, a steel platform, an air pipeline and a drying working area, the temperature rising and heat supply unit is installed on the steel platform, and the two ends of the bottom of the temperature rising and heat supply unit are connected with an air supply pipe and an exhaust pipe correspondingly. Stand columns are evenly and fixedly installed at the bottom of the steel platform, the bottom of the air supply pipe is divided into a left air pipe and a right air pipe, and the bottom of the left air pipe and the bottom of the right air pipe communicate with a top sealing plate at the top of an inner cavity wall. According to the drying chamber, the left air pipe and the right air pipe both seamlessly communicate with the inner cavity wall, so that drying gas has no chance to escape to the external space, and compared with an air valve adjusting mode in the past, the scheme avoids air pollution caused by leakage of a rotating shaft of the air valve and avoids the phenomenon that external air pipe yellowing and oil dripping is caused by leakage of the air valve, and the surface quality of equipment is poor.