47results about How to "Improve flanging effect" patented technology

The invention provides a 780 MPa hot-rolled high-strength steel with high hole expansion ratio and a manufacturing method thereof. The 780 MPa hot-rolled high-strength steel with high hole expansion ratio comprises the following chemical components in percentage by mass: more than or equal to 0.03 percent and less than or equal to 0.07 percent of C, less than or equal to 0.2 percent of Si, more than or equal to 1.0 percent and less than or equal to 2.0 percent of Mn, less than or equal to 0.02 percent of P, less than or equal to 0.005 percent of S, more than or equal to 0.02 percent and less than or equal to 0.05 percent of Al, less than or equal to 0.005 percent of N, more than or equal to 0.08 percent and less than or equal to 0.20 percent of Ti, more than or equal to 0.15 percent and less than or equal to 0.25 percent of Mo, less than or equal to 0.003 percent of O and the balance of Fe and inevitable impurity elements, wherein Ti/Mo is more than or equal to 0.25 and less than or equal to 1.5, and (Ti-3.42N)/4+Mo/8 is more than or equal to 0.03 percent and less than or equal to 0.07 percent. The 780 MPa hot-rolled high-strength steel with high hole expansion ratio is obtained through smelting, casting, high-temperature heating, hot rolling and reeling processes, and is more than or equal to 750 MPa in yield strength, more than or equal to 780 MPa in tensile strength, more than or equal to 20 percent in extensibility, more than or equal to 70 percent in hole expansion ratio when the thickness is 3-6 mm.

The invention belongs to a device of a flange production process of a cylindrical (shell) branch hole of aluminum and steel materials and particularly relates to a flange mould system of a shell branch hole of a high-voltage switch. The flange mould system is characterized in that: a mould handle is connected with a convex mould through a connecting piece; external splines are respectively machined at the top end and the bottom end of a pull rod; the top end of the pull rod is inserted into a spline groove in the convex mould and then rotates for 45 degrees to be clamped with the convex mould; the bottom part of the pull rod is inserted into a spline groove in an oil cylinder piston and then rotates for 45 degrees to be clamped with a main oil cylinder; a concave mould is clamped with a concave mould seat through clamping grooves which are in a clearance fit and two ends of the concave mould are fixed by a right baffling block and a right baffling block; the concave mould seat is fixed on a cross-shaped positioning key on a main worktable; a shell is placed on the concave mould to be subjected to alignment; and the convex mould is placed on an inserting head at the front end of a mechanical movable arm. The flange mould system has the advantages of reasonable and standard design, simplicity in machining and reliability in use; and the undesirable effects that a shell flange is easy to crack, a vertical edge is not straight, and the like are solved.

The invention discloses a base material flanging machine which mainly comprises a frame, a positioning pin support, a protecting grating, a suspension button station, an electric cabinet, a lifting mechanism, a heating system, an edge covering mechanism and a positioning die set. The positioning pin support is fixed on the frame. The protecting grating is disposed on the lateral side of the frame. The suspension button station is disposed on the frame. The electric cabinet is disposed on the inner side of the frame. The lifting mechanism is disposed on the inner side of the frame. The heating system is disposed on the lifting mechanism. The edge covering mechanism is disposed on the frame. The positioning die set is disposed on the edge covering mechanism. The base material flanging machine has the advantages that electric PLC control is adopted, touch-screen control buttons are used, and an automatic circulation function is provided; the base material flanging machine is compact in overall structure, simple to mount and operate, visual in touch screen display, convenient in parameter adjustment, and the like.

The invention relates to an ultrahigh strength cold rolled steel strip for an automobile seat, which comprises the following components in percentage by mass: 0.17 to 0.23 percent of C, below 0.01 percent of P, below 0.01 percent of S, 0.15 to 0.35 percent of Si, 0.60 to 0.90 percent of Mn, 0.15 to 0.35 percent of Mo, 0.40 to 0.65 percent of Cr, 0.40 to 0.70 percent of Ni, and the balance of Fe. The yield strength 6s of the ultrahigh strength cold rolled steel strip is 300 to 400MPa, the tensile strength 6b is 350 to 550MPa, the elongation rate delta is more than or equal to 30 percent, and the hardness is 75 to 85; and the ultrahigh strength cold rolled steel strip has high flanging performance.

The invention provides an intermediate annealing process of an aluminum alloy. The intermediate annealing process comprises the step of carrying out intermediate annealing on a cold-rolled aluminum alloy to obtain the aluminum alloy subjected to intermediate annealing, wherein the temperature of intermediate annealing is 450-550 DEG C, and the time of intermediate annealing is 2-20 minutes. A continuous annealing mode is adopted, annealing temperature of an intermediate annealing process is increased, and morphology of the annealed aluminum alloy is improved, so that the effect of improving flangability of products is achieved. Experiment results show that the aluminum alloy which is prepared by the intermediate annealing process has smooth surfaces after being subjected to flanging, does not have crack initiation lines or cracks, and can be applied to the automobile industry. The invention further provides an aluminum alloy for an automobile covering part.

The invention provides a process for producing glass reinforced plastic through strong core mat vacuum infusion, which comprises the following steps of: stacking and putting a first composite mat, a second composite mat, a third filament mat, a fourth composite mat and a fifth composite mat in a mold, enabling glass fiber fabrics at all layers to be fully soaked by resin through a vacuum resin infusion method, and conducting solidification; and adding a strong core mat which is cut according to a fixed size between the second composite mat and the third filament mat, and connecting the strong core mat with laid spiral air extraction tubes to take an effect of auxiliary air extraction. The strong core mat has the characteristic of absorbing less resin, unsaturated polyester resin flows slowly in the strong core mat and the problem that the unsaturated polyester resin enters vacuum equipment, is solidified and affects the use of the equipment because the flow rate is too high can be solved. By using the method to produce glass reinforced plastic products, the problems that the flanges of the filament mat and the composite mats are not bonded firmly and are apt to be layered are solved, and the effects of enhancing the vacuum pumping strength of a glass reinforced plastic vacuum infusion process and strengthening the flanging performance of the glass reinforced plastic are taken.

The invention discloses a flanging die. The flanging die comprises an upper die base, a lower die base, a flanging male die mounted at the bottom of the upper die base and flanging female dies mounted on the lower die base. The inner side faces of the flanging female dies are molding surfaces. The top end of each molding surface is provided with a molding rod. The molding rods are transversely inlaid in the molding surfaces correspondingly and can rotate on the corresponding molding surfaces. The opposite sides of the two molding rods are provided with rolling surfaces protruding out of the respective molding surfaces. The rolling surfaces are matched with the flanging male die to conduct flanging on blanks. According to the scheme, the rolling surfaces are used for replacing flanging female dies and are matched with the flanging male die to conduct flanging on parts. Linear contact molding (common surface contact) is avoided by adopting the rolling surfaces in the flanging process, so that flanged surfaces are more smooth, and the flanging molding effect is good.

The invention belongs to the field of metal material plastic processing and discloses an electromagnetic lateral edge turning device for a pipe with a preformed hole. The device comprises an upper die frame, an upper die, a lower die, a lower die frame, a columnar supporting body, a space spiral coil and a pulse discharge circuit. The upper die is arranged on the upper die frame, the lower die is arranged on the lower die frame, a containing hole is formed by the upper die and the lower die jointly, and the pipe with the preformed hole is sleeved with the columnar supporting body. An edge turning hole is formed in the upper die, the pulse discharge circuit and the space spiral coil are connected to form a pulse magnetic field, the top view of the space spiral coil is spiral, and the side view of the space spiral coil is arc. The space spiral coil is arranged on the top of the columnar supporting body, and a groove for containing the space spiral coil is formed in the top of the columnar supporting body. Radial electromagnetic force generated by the space spiral coil is distributed more intensively in an edge turning hole region, the electromagnetic force is higher, the energy utilization rate is higher, the service life of the coil is longer, and good economic benefits are achieved.

The invention discloses a stamping die for flanging processing of plate-shaped parts, wherein when the stamping die is used for flanging of aluminum parts and stainless iron or stainless steel workpieces, the workpieces cannot be galled. The stamping die comprises an upper die base and a lower die base; a lower die plate is arranged on the lower die base; a mounting groove is formed in the lower die plate; a lower forming block which moves up and down is movably arranged on the part, corresponding to the interior of the mounting groove in the lower die plate, of the lower die base through a jacking spring; a plurality of positioning pieces for limiting the position of a workpiece are arranged on the lower forming block; a flanging cutter block is arranged on the lower die plate and at theto-be-flanged part of the workpiece; a flanging rolling shaft parallel to a bending line at the flanging position of the workpiece is rotationally arranged in the flanging cutter block; a mounting notch is formed in the cutting edge of the flanging cutter block; the periphery of the flanging rolling shaft is exposed out of the mounting notch, the side face, used for forming a workpiece, of the flanging cutter block is tangent to the periphery of the flanging rolling shaft, a mounting plate is arranged on the upper die base, an upper forming block matched with the lower forming block in shape is arranged on the mounting plate, and an upper cutter block matched with the flanging cutter block is detachably arranged on the upper forming block.

The invention relates to a flanging device for container manufacturing. At present, flanging operation is needed when some super-large container workpieces are manufactured, and the workpieces are special in structure, large in appearance size and difficult to machine. The flanging device for container manufacturing comprises a supporting system, a rolling system, a pushing system and a control system, wherein the supporting system is composed of a supporting base (1), a head supporting machine frame (2) and a tail supporting machine frame (3), and three working rollers on the rolling system are connected between the head supporting machine frame and the tail supporting machine frame; and a speed reduction motor (5) is installed on one side of the head supporting machine frame, the speed reduction motor is connected with a motor, the motor (4) and the speed reduction motor are correspondingly installed above a supporting base, and an electric appliance control cabinet (11) in the control system is further installed above the supporting base. The device is applied to the field of machine manufacturing.

The invention provides a tool bit and a hole drilling and flanging tool and method. The tool bit comprises a tool bit body and a working end, and the working end is of a tip structure. A groove is formed in the middle of the outer surface of the tool bit body. The tool bit can complete the process of hole drilling and the process of flanging at the same time, and the hole drilling and flanging tool with the tool bit is used for achieving the combining of the hole drilling and flanging process of a pipeline and automatic production. An efficient hole drilling and flanging production mode is provided; better universality is achieved, and pipelines with complex shape changes can be machined; the machined flanging has a good flanging effect and excellent stability.

The invention belongs to the field of lifting appliance instruments, and discloses a side plate overturning lifting appliance which comprises a clamping unit. The clamping unit comprises a fixed clamping jaw and a movable clamping jaw, wherein one end of the movable clamping jaw is hinged to one end of the fixed clamping jaw. The side plate overturning lifting appliance further comprises a controlunit, wherein the control unit is used for controlling the movable clamping jaw to rotate around the hinged position of the movable clamping jaw and the fixed clamping jaw in the direction close to or away from the fixed clamping jaw. The movable clamping jaw is in the shape of a right-angle plate with a rounded corner as a whole. The fixed clamping jaw comprises a fixed clamping end, and the clamping end is integrally in the shape of a right-angle plate with a rounded corner and matched with the movable clamping jaw. Compared with the prior art, the novel side plate overturning lifting appliance has the advantages that various arc-shaped edge beam profiles can be lifted, overturning is achieved, clamping is convenient, a limiting locking device is arranged, potential safety hazards suchas falling of a side plate are eliminated, the overturning effect is ideal, the labor intensity is relieved, and the overturning efficiency is high.