361results about How to "Reduce the amount of cutting" patented technology

An implantable medical device such as a defibrillator is described. The device includes an hermetically sealed housing containing a flat electrolytic capacitor and an energy source such as a battery. The battery is connected to the capacitor and provides charge thereto. The capacitor stores the charge at a relatively high voltage. The charge stored in the capacitor is discharged through a defibrillation lead to a site on or in the heart when fibrillation of the heart is detected by the implantable medical device. Methods of making and using the implantable medical device, the capacitor, and their various components are disclosed.

The invention provides an opaque quartz crucible used in multicrystal silicon crystallization and a method for manufacturing the same. The crucible is of a regular square structure, and the compositions in mass ratio of the crucible are more than 99.7 Wt percent of silicon dioxide, less than 600ppm of aluminum oxide and less than 30ppm of ferric oxide. The method comprises the following steps: firstly, a raw material, i.e. high purity quartz is put into granulation equipment for wet method granulation, the grain size is controlled between 70 and 100mu m; then, slurry is fully stirred and then is fed into a gypsum mould under a pressure of between 2 and 3bar after being deposited for 24 to 48 hours; moreover, early grouting is assisted by slight vibration; the slurry is further settled for 5 to 8 hours, and is demoulded after fully dewatered; the slurry is dried inside a drier; and finally, a blank is put in a kiln for sintering so as to obtain the opaque quartz crucible. The proposal adopts grouting forming by a high-purity quartz material, and the sintered crucible has uniform inner structure; moreover, the crucible has excellent thermal shock stability and cracking resistance, and can meet the technological requirements for manufacturing multicrystal silicon cast ingots.

Bits for use in drilling with a well completion string or the like are provided. The bits comprise a bit body and a cutting face that includes a plurality of sets of cutter elements mounted on the cutting face. The bit body has a central longitudinal bore having an integrated female non-shouldered, standard oilfield completion string thread. This thread arrangement allows the bit to be secured directly to any standard completion string, well casing. The bits are designed with minimal cutter coverage, and this combined with the integrated completion string thread allows economical completion of a well with the high ROP expected from a PDC type bit. In an additional embodiment, a bit comprises a bit body and a cutting face having integrated cutting structures. The bit body has a central longitudinal bore having an integrated female non-shouldered, standard oilfield completion string thread. A unique bit manufacturing technique is also provided.

The invention discloses a machining process of middle-long thin-wall blades, which belongs to the technical field of machining of blades. The machining process is implemented by a detailed process of integrated rough machining and integrated fine machining, wherein the integrated rough machining comprise the specific steps of rough machining of each surface of a blade tip, each surface of a blade root and a molded surface of a steam passage; and the integrated fine machining comprises the specific steps: semifinishing of each surface of the blade tip and each surface of the blade root, fine machining of each surface of the blade tip, each surface of the blade root and each residue, semifinishing of the steam passage and fine machining of the steam passage. According to the machining process of the middle-long thin-wall blades, the operation is simple and convenient, the use is convenient and fast, the cost is low, the machining efficiency is high, and the operation is easy and labor-saving; and the deformation of the middle-long thin-wall blades is controlled within 0 to 0.8mm, the normal machining of a subsequent mold correction process is facilitated, and the machining of each blade is finished once.

The invention relates to an automobile hub isothermal forging and spinning forming process which mainly overcomes casting defects of proneness to shrinkage and looseness, low mechanical property and the like of a traditional metal mold casting blank forming method and overcomes the shortcoming that an automobile hub is large in machining allowance, high in production cost and difficult in wide application. The technical scheme includes that the process includes: cutting an aluminum alloy rod to a blank; preheating the blank to the temperature of 460 DEG C to 500 DEG C and then keeping the temperature for 1 hour; forging and pressing the blank for 3-4 times under a forging press to manufacture a pre-forging blank; preheating a die; placing the pre-forging blank into the forging die (controlling the die temperature at 400-450 DEG C) under a 1500t forging press, and performing isothermal forging for 2-3 times again to enable an aluminum alloy hub to be formed primarily; and spinning for precise forming. By the forming process, product manufacturing precision and strength are enhanced, and the forming process belongs to precise forming and is capable of effectively saving production cost and improving mechanical property of the hub.

An electronically-operable door strike employing a guard clip for deterring picking of the locking mechanism therein, a springless solenoid designed to avoid the undesirable build-up of residual magnetism and which incorporates air gaps for dissipating heat, thus prolonging the useful life of the solenoid, and a face plate for mounting the strike into a door jamb.

A die set for press-forming a blank of thin metallic sheet. The die set has a punch and a blank holder. The blank holder has a first bead for restraining an edge of the blank with a constant force. The first bead is disposed further to an inside than a second bead for restraining the edge of the blank with a force that varies during pressing of the blank.

The invention relates to a small gantry dual-spindle drilling milling tapping numerical control machine. The small two-axis gantry drilling tapping digital control machine essentially solves the technical problem of providing a drilling milling tapping machine with low cost and high efficiency for the light metal hardware processing of the communication and the consumption electronic industry, and the machine has the advantages of simple structure and stable and reliable operation. The technical proposals for solving this problem is as follows: a frame structure support welded with channel steel, a diamond-shaped rib square structure soleplate and a gantry beam are adopted; a sliding plate of the beam is equipped with dual spindles, and the dual spindles are respectively a high-speed drilling milling head spindle and a high-speed tapping head spindle. The drilling milling head spindle uses a high-speed knife replaceable electric spindle; the tapping head spindle uses a self-invented mechanical tapping spindle able to carry out the screw distance selection automatically. The drilling milling head spindle can install the tool magazine on the rear, left and right positions of the machine; the tool magazine uses row-type tool magazine, inverted bamboo hat style tool magazine or row-type tool magazine and the arbitrary combination methods of inverted bamboo hat tool magazine.

The invention discloses a manufacturing method of a super-thick steel plate (thickness is 60 millimeters) and belongs to the steel plate production field of metallurgical industry. The manufacturing method of the super-thick steel plate comprises the following steps: firstly, sending a plate blank which is heated to a certain temperature and removed an oxide scale to cooling space to conduct forced cooling, surface temperature cooling a phase transition temperature of the super-thick plate material above Ar 1, then by short time temperature returning, the surface temperature rising to the range between 780 DEG C and 880 DEG C, and sending the plate bland to a rolling mill to roll as soon as possible; when the surface temperature of the plate blank being higher than 880 DEG C, needing to conduct the forced cooling again, and then conducting the subsequent rolling. A cooling-temperature returning-rolling process can be repeated for many times if needed till rolling to the needed thickness of the super-thick steel plate. The manufacturing method of a super-thick steel plate can increase dependent variable of the central area by increasing temperature difference between a surface layer and the central area and has the advantages of being beneficial to refining central organization and improving impact toughness, beneficial to removing center porosity of the super-thick plate, and capable of reducing double strand shape on lateral sides of the super-thick plates. The manufacturing method of a super-thick steel plate further has the advantages of being saving in investment, and flexible to operate.

The present invention relates to technology of utilizing chemical reagent in treating expansion soil. The ecological expansion soil modifying agent consists of CMA weak acid resin liquid, water and active lime through full stirring. The ecological expansion soil modifying agent is sprayed to the surface in 1-3 times and penetrated into soil. Through ion exchange, gluing and curing, the expansion soil is altered in the structural characteristic, has raised strength and raised water stability, and is changed into non-expansion soil permanently. The said technology is simple, and the modified soil may be greened. The technology of the present invention is suitable for highway, railway, water engineering and other engineering.

The invention relates to a bending and cutting integrated machine and a method thereof. A punching or cutting unit carries out punching or cutting operation before bending forming or after the bendingforming, and the punching or cutting unit applies force to a punching cutter through a punching driving device (415) to prompt the punching cutter to carry out shape and hole punching on a workpiece,or carries out shape and hole machining on the workpiece through a cutting tool on a numerical control mechanical arm when bending external moulds (41) and bending internal moulds (42) clamp the workpiece and are closed, it is avoided that the precision of a hole and a bend angle of each workpiece is reduced due to resetting after demoulding.

The invention discloses a manufacturing method for a decorated eyeglass frame or eyeglass leg, comprising the steps of molding and processing, wherein the step of molding comprises the step of puttingdecoration and plastic raw materials into a molding cavity of a die mold, once die-casting a hard base material, and the step of processing comprises the step of machining the base material to manufacture the final eyeglass frame or eyeglass leg. Compared with the traditional manufacturing method of eyeglass frame or eyeglass leg, the invention has the advantages that a same eyeglass frame or eyeglass leg can be molded with a double-color or multi-color effect, the processing efficiency and processing quality are higher and the method is more environment-friendly because the processing needsno glue or solvent.

The invention discloses a desktop wood-plastic 3D printer with a grinding function, and relates to a desktop wood-plastic 3D printer with wood addition and subtraction. In order to solve the existing 3D printing layer-by-layer manufacturing form, the present invention has the problem that the shape accuracy, size accuracy and surface quality of parts are limited by the double limitation of single-layer printing thickness and plane printing accuracy. The invention includes a rectangular frame (1), which also includes a material subtraction component, a material addition component, and a work platform for adding and subtracting materials. Mounted on a rectangular frame (1). The present invention uses wood-plastic materials as raw materials for manufacturing, and realizes the layer-by-layer stacking of wood-plastic materials to carry out additive manufacturing technology; while the grinding process is a kind of cutting tool with the grinding wheel and the abrasive grains of the grinding wheel as the cutting blade, so as to achieve the required Dimensional shape accuracy, surface roughness requirements. The invention is used for wood-plastic extrusion printing.

The invention discloses a forging method for a pressure vessel bottom head transition section of a second-generation nuclear power station. The forging method is used for forging the pressure vessel bottom head transition section of the second-generation nuclear power station, the pressure vessel bottom head transition section comprises a straight section and a conical section, the inner diameter of the straight section is not less than 3000mm, the outer diameter of the straight section is not less than 4000mm, an inner hole of the conical section is provided with a bevel edge, the minimum inner diameter of the conical section is smaller than the inner diameter of the straight section, and the overall height of the conical section is not less than 2500mm. A megaton free forging press is used, and double-vacuum steel ingots are used as raw materials. The forging method includes the steps: firstly, primarily drawing; secondly, cogging; thirdly, upsetting, forging a central hole and pre-broaching; fourthly, secondarily drawing; fifthly, flattening a large end of a forging to form a conical hole of the forging; and sixthly, broaching. The forging manufactured by the forging method can meet the technical requirements of the pressure vessel bottom head transition section of the nuclear power station, and is compact, reasonable in metal flow line distribution and not easy to crack. The invention further discloses a special mould sleeve for the forging method.

The invention relates to a mould for machining an engine main shaft bearing inner ring with an inner diameter oil groove and a machining method, and relates to a mould for machining a bearing inner ring and a machining method. The problem of poor machining accuracy of the inner diameter of a bearing inner ring and the size of an inner diameter oil groove is solved. The mould is composed of a mouldbase, a pressing plate and a connecting bolt; and a ring-shaped flange is arranged on a bearing plane. The machining method comprises the steps that an outer circumferential surface is milled softlybefore an inner circumferential surface is turned finally, the outer circumferential surface of an inner ring and one end face of the bearing inner ring are used as a positioning datum to machine theinner circumferential surface of the inner ring; milling of the inner diameter oil groove is performed after the finally turning of the inner circumferential surface of the inner ring; the bearing support flat face of the mould is used for positioning one end face of the bearing inner ring; and the outer circumferential surface positioned by the inner surface of the ring-shaped flange of the baseis used for machining the inner diameter oil groove. According to the mould for machining the engine main shaft bearing inner ring with the inner diameter oil groove, deformation caused by tightly clamping can be avoided, the machining method ensures the machining accuracy of the inner diameter oil groove, and the method is suitable for machining the engine main shaft bearing inner ring with the inner diameter oil groove.

The invention concerns a method for casing a borehole which consists of successively lowering an unlimited plurality of strings of casing having a common diameter, the next one through the preceding one, to be installed one beneath the other and being sealingly connected. Thus a next casing (6) is lowered folded through the preceding casing (5) and the expansion process consists either in injecting pressurized fluid through the drillstring (54) towards the next casing (6) so as to re-inflate it, or the next casing (6) is a cylindrical pipe having a diameter smaller than the internal diameter of the preceding casing (5) and the expansion process consists in forcing a cylindrical gauge (52) from the top end (26) to the bottom bell (28) of the next casing (6) so as to increase its diameter to make it equal to the diameter of the preceding casing (5). The method can use a cementing shoe (34) and a metal-to-metal seal (29) between the casing string.