31results about How to "Guaranteed profile" patented technology

The invention relates to a heat treatment deformation control method for a large-diameter and large-modulus elliptical molded surface container semispherical shell and belongs to the technical field of container manufacturing. By means of the heat treatment deformation method, due to the fact that an integrated quenching and aging heat treatment tool is designed, the elliptical molded surface container semispherical shell and the heat treatment tool can be tightly matched, the quenching transfer time is shortened, the phenomenon that the top of the shell collapses and pits happen in the circumferential direction of the shell during quenching is avoided, quenching and time aging deformation is reduced, and therefore the heat treatment performance of the elliptical molded surface container semispherical shell can be ensured; and meanwhile, the subsequent machining precision of the shell is also ensured. In addition, a UCON water solution with the concentration ranging from 6% to 10% is adopted in the method to serve as a quenching medium, dynamic flowing of the water solution is maintained, the cooling speed and uniformity of the shell are ensured, meanwhile, quenching deformation is also controlled, and therefore the product precision is ensured.

The invention discloses a stator blade finish forging automatic machining method. The method adopts a self-adaption machining technology, and blade deviation, torsion, profile surface tolerance and machining consistency are ensured. The method is simple in machining procedure, computer control and management are adopted, controlled devices completely automatically finish the sequential operation,the degree of automatic operation is improved, multiple devices, multiple passes of procedures, repeated clamping and repeated standard conversion for original stator blade machining are reduced intotwo passes of procedures of machining, two times of clamping and one time of standard conversion on one kind of equipment, labor is saved, the production period of parts is shortened, and the production efficiency is improved.

The invention proposes to use a plant material derived from Marrubium vulgare for a non-therapeutic cosmetic treatment for tightening skin pores, said plant material comprising an effective amount of Forsythoside B as the active molecule. The plant material is preferably constituted of a cellular extract of dedifferentiated plant cells freed from cellular debris. This treatment is particularly intended for refining skin grain and/or for treating skin with an oily tendency.

The invention discloses a sodium alginate modified ropivacaine hydrochloride multivesicular liposome microsphere as well as a preparation method and an application thereof. The preparation method comprises the following steps: firstly, uniformly mixing and dispersing a nano calcium carbonate gel initiator into liquid paraffin, adding multivesicular liposome under the condition of uniform stirring, then adding a sodium alginate solution, and uniformly mixing; and then adjusting the pH value to 3.0-5.8, and rapidly initiating gelation reaction by free calcium ions to form the uniform gel-coated multi-vesicular liposome microspheres with a net-shaped cross-linked structure. The multi-vesicular liposome microsphere has the characteristics of clear structure, uniform particle size, stable state, long slow release time and the like. Compared with an existing preparation method, the preparation method has the advantages that the encapsulation effect of the final multi-vesicular liposome is guaranteed, the surface of the multi-vesicular liposome is uniformly covered with the sodium alginate, the problem that the sodium alginate is connected into a sheet is solved, the stability of the multi-vesicular liposome is enhanced, and therefore the slow release effect is improved. Meanwhile, the use amount of chloroform in the organic solvent can be reduced.

The invention discloses a method for adjusting the misalignment of shells of a mold for fan blades during assembling. The mold comprises an upper shell and a lower shell, wherein the upper shell is fixed on an upper mold steel frame, and the lower shell is fixed on a lower mold steel frame; the upper shell and the upper mold steel frame are put on the lower shell and the lower mold steel frame respectively; the upper shell and the lower shell are abutted together to form a hollow fan-blade mold cavity. The method comprises the following steps of: arranging a detachable adjusting device on the lower mold steel frame, wherein the adjusting device is provided with an adjusting nut; rotating the adjusting nut so that the adjusting nut pulls the upper mold steel frame and the upper shell to move transversely together through a screw rod to align the upper shell to the lower shell; locking and fixing the upper mold steel frame and the lower mold steel frame by a group of mold locking and positioning devices; detaching the adjusting device. The invention aims to provide the method and the device for accurately and conveniently adjusting the misalignment of the shells of the mold for the fan blades during assembling.

The invention discloses a forming mold and forming method for a ring gear. The forming mold comprises an upper mold base and a lower mold base, wherein a convex mold base is arranged below the upper mold base; a punch mechanism is arranged below and connected with the convex mold base and comprises, from top to bottom, a punch seat, a punch and a guide head; the punch seat, the punch and the guidehead are detachably fixed on the convex mold base via fixed bolts; a detachable concave mold is arranged above the lower mold base; the internal diameter of the upper section of the concave mold is greater than the internal diameter of the lower section of the concave mold; guide pillars and guide sleeves are arranged at two sides of a part located between the upper mold base and the lower mold base; distance between the upper mold base and the lower mold base is adjusted through cooperation of the guide pillars and the guide sleeves; and a material returning mechanism is arranged between theupper mold base and the lower mold bas. The ring gear is molded by using a cold extruding process. The forming mold and the forming method provided by the invention have the advantages of low cost, good tooth form precision uniformity, long mold service life, high production efficiency and good mechanical properties of tooth parts and are applicable to preparation of ring gears with diameters of50 to 500 mm.

The invention discloses a tool manufacturing method for preventing air leakage of a composite material forming tool. The composite material forming tool is used for forming a composite material part. The composite material forming tool is formed by assembling a composite material paving die and a supporting frame. The composite material paving die is formed by paving and hot-pressing tool prepreg with different thicknesses on the basis of a transition die. In the paving process, pressing strips are paved in the R area and the corner area of the transition die, the tool prepreg is paved in the edge allowance area of the tool in a photo frame mode, and a seam filling long strip is paved in the butt joint area. The photo frame type paving avoids expansion of the edge defect caused by cutting to the interior and cracking during collision or demolding in the carrying process; and the high-temperature air tightness of the tool is further ensured by the pressing strips and the seam filling long strip. The tool manufactured by the method is good in air tightness, the maintenance cost is effectively reduced, the forming quality and the manufacturing period of the composite material part are guaranteed, and good practical and economic values are achieved.

The invention relates to a contact structure, a semiconductor device structure, and preparation methods of the contact structure and the semiconductor device structure. The contact structure comprises: a conductive plug; and a passivation protection layer which covers the side wall of the conductive plug. According to the contact structure, the passivation protection layer is formed on the side wall of the conductive plug, so that the conductive plug is prevented from being exposed in the air, the surface of the conductive plug is prevented from being oxidized, the passivation protection layer can protect the conductive plug from being removed in an acid pickling process, the complete morphology of the conductive plug is ensured, and the conductive performance of a device is ensured.

The invention discloses a gear machining process. The gear machining process is characterized by comprising the following steps of (1), material selection, wherein a gear material is reasonably selected; (2), formation of a gear blank, wherein forging and casting are carried out; (3), rough machining of a gear, wherein gear blank machining, gear form machining and gear end machining are carried out, and redundant materials are cut off; (4), semi-finishing of the gear, wherein gear shaping is carried out on the gear; (5), heat treatment of the gear, wherein preheating, quenching and tempering are carried out; and (6), secondary finishing, wherein standardization is carried out on the gear, and the gear form is subject to finish machining to obtain a final finished product. The gear machining process has the advantages that the working procedures are simple and clear; and rough machining, semi-finishing and secondary finishing are carried out on the gear, so that the gear form is betterguaranteed, the machining efficiency is improved, the cost is saved, and meanwhile the quality of the gear is improved.

The invention relates to the field of automobile high-pressure oil rails, and in particular, relates to a high-pressure oil rail argon arc welding assembly and a manufacturing method thereof. Components of the high-pressure oil rail argon arc welding assembly are divided into a distribution pipe, a first-stage component directly and independently connected to the distribution pipe, a connecting component used for connecting the distribution pipe with other components and a second-stage component connected with the distribution pipe through the connecting component. The manufacturing method comprises the steps that: firstly, a press-fitting component in the first-stage component is connected to the distribution pipe by adopting a press-fitting process; then a first welding component and the connecting component in the first-stage component are connected to the distribution pipe through first-time argon arc welding; and finally, a second welding component and the second-stage component in the first-stage component are connected to the distribution pipe through second argon arc welding. The invention further comprises the high-pressure oil rail argon arc welding assembly. On the premise that the location degree and the outline of a product are guaranteed, the fixed included angle between an oil sprayer seat clamping groove and the distributing pipe in the radial direction is guaranteed, the process route is shortened, and the production efficiency is improved.

The invention discloses a multipole acoustic wave imaging well logging-while-drilling device. According to the device, one end of a sound receiving system is connected with a sound emitting system through a screw thread to form an integrated structure, a sound insulator is arranged at the lower end of the sound receiving system, the interiors of the sound emitting system, the sound receiving system and the sound insulator communicate with one another to form a central water hole, a central flow guide pipe is arranged in the central water hole, a multipole receiving transducer module and a receiving main control circuit module framework are arranged on the sound receiving system, a four-pole emitting transducer, a single-pole emitting transducer and an emitting excitation circuit module framework are arranged on the sound emitting system, the two ends of the central flow guide pipe are connected with the receiving main control circuit module framework and the emitting excitation circuitmodule framework through sealing pressure-bearing connecting devices correspondingly, a receiving main control circuit module is arranged on the receiving main control circuit module framework, and an emitting excitation circuit module is arranged on the emitting excitation circuit module framework. The device can improve well drilling operation, and improve the well drilling safety coefficient.

The invention belongs to the field of laser surface texture forming, and particularly relates to a laser shock curved surface embossing technology and a curved surface micro-shape repair technology. According to the laser shock curved surface embossing technology and the curved surface micro-shape repair technology, a TiNi alloy curved surface plate is pressed to form a plane plate through low-temperature deformation, then the micro-shape is made on the surface of the plane plate through the laser shock embossing technology, the plane plate is recovered to form the curved surface plate throughthe high temperature, the significant influence on the micro-shape cannot be generated in the recovery process, only the overall height of the surface micro-shape is slightly reduced, and the uniformity of the micro-shape cannot be affected. The accessory micro-shape repair technology of the laser shock curved surface embossing technology can also efficiently recover the ineffective shape of metal.

The invention discloses a complex component machining residual wall thickness self-adaptive compensation method based on coordinate origin translation, and belongs to the technical field of measurement-machining integration. According to the method, on an open type numerical control platform, wall thickness data of a component is measured through an ultrasonic thickness measuring device, a machining target curved surface related to the residual wall thickness is reestablished, inclusiveness analysis is completed, coordinate origin translation amount calculation is conducted, and machining compensation is completed through machining code origin correction. According to the method, the defects of an existing residual wall thickness compensation method are overcome, the machining requirement that the residual wall thickness and the profile tolerance of the complex component are restrained at the same time is met, the machining precision is improved, the labor intensity is reduced, and self-adaptive compensation of the machining residual wall thickness of the complex component is achieved.

The invention provides a semiconductor device and a manufacturing method thereof. When a component and a mark extending into a semiconductor substrate are formed in the same process, the maximum depthof the mark opening formed by etching is still smaller than the minimum depth of the component opening when the widths of the mark opening and the component opening are not changed; therefore, when the mark opening and the component opening are filled with the material I at the same time to form the mark and the component, the filling performance of the mark opening with smaller depth is good, and the morphology of the formed mark can be further guaranteed.

The invention provides a first and second position side positive assembly device for an aluminum alloy subway type-A side wall. The first and second position side positive assembly device comprises across beam assembly used for providing supporting force, two deflection positioning blocks used for prefabricating side wall deflection and pressing a side wall upper edge beam and fixed to two ends of the cross beam assembly through bolts, a formwork assembly used for fixing the side wall and guaranteeing a side wall profile tolerance requirement, a door jacking and pressing device used for jacking and pressing side wall door section bars when first and second position side walls are switched, a doorway unit pressing device used for guaranteeing that the side wall is closely attached to the formwork assembly so as to guarantee the overall profile tolerance of the side wall, and a wall plate positioning block used for guaranteeing the width of a space from the side wall to a doorway. The first and second position side positive assembly device can be suitable for positive assembly of the first and second position side walls simultaneously, and thus, the site and tool cost are saved.

The invention provides an aluminum alloy subway A-type vehicle side wall first-position side and second-position side reverse assembly device. The device comprises a cross beam assembly, two edge beam positioning and pressing assemblies, a plurality of formwork assemblies, a door jacking and pressing device, a doorway unit pressing device, a wallboard positioning block and a reversible deformation device are installed on the cross beam assembly, and the reversible deformation device can be installed through the cross beam assembly; the edge beam positioning and pressing assemblies are used for prefabricating deflection of a side wall and pressing an edge beam on the side wall; the formwork assemblies are used for fixing a side wall profile and guaranteeing the profile tolerance requirement of the side wall; the door jacking and pressing device is of a turnover structure and is used for jacking and pressing a side wall doorway profile when a first-position side wall and a second-position side wall are switched. the doorway unit pressing device is used for guaranteeing the overall profile tolerance of the side wall; and the wallboard positioning block is used for guaranteeing the width from the side wall to a doorway. The device can be suitable for reverse assembly of the first-position side wall and the second-position side wall at the same time, the site and tool cost is saved, the multi-project switching function can be achieved by replacing nylon blocks, the operation is convenient and fast, and the working efficiency is improved.