39results about How to "Variable thickness" patented technology

This invention is directed to patients who need vertical support in the cleavage area due to symmastia repair or reconstruction of the chest cleavage for breast reconstruction after mastectomy. The support garment is designed not to support the breast or nipple area of the chest. The Y support which fits the patient close to the neck and between the breasts is attached to a full back panel using self adjusting velcro closures. This unique design creates a force much like a bow to provide constant pressure from front to back on the cleavage area only to allow scar tissue to form during the healing process. The cross link high density foam insert maintains even pressure during healing and does not lose its resiliency or permit permanent deformation.

The invention relates to a composite extracellular matrix ingredient biological material. A decellularized SIS (Small Intestinal Submucosa) is used as a middle layer; decellularized UBMs (Urinary Bladder Matrixes) are used as upper and lower surface layers; and the upper and lower surface layers completely cover the middle layer to form a sandwich structure. The advantages of the UBMs and the SIS are integrated; the UBMs isolate the immunogenicity of the SIS and the direct contact of the SIS and a host tissue; the implanted host-material boundary region inflammatory reaction basic type is identical to that of the pure UBMs; the tissue compatibility is high; on the other hand, the SIS can overcome the defect of low mechanical strength of the UBMs; the preparation of the SIS is convenient; the thickness is variable after the splicing; the composite extracellular matrix ingredient biological material can be applied to filling, reinforcing, restoring or rebuilding of various soft tissue defects of aponeurosis, meninges, pleura, pelvic floor, dermis, parenchymatous and the like; and high clinic practicability is realized.

A method for locally increasing pressing pressure on a press tool having an abutment surface for being clamped onto a clamping surface in a press comprises providing a power unit smaller than the abutment surface and having an internal space, positioning the power unit between the clamping surface and the abutment surface, pressing the clamping surface against the abutment surface, connecting the internal space to a source of pressurized hydraulic fluid, and supplying the pressurized hydraulic fluid to the internal space thereby causing the power unit to expand and to exert a local pressure on the abutment surface.

The invention provides a rotor shaft assembly, a rotor and a motor. The rotor shaft assembly comprises a magnetic core, a first end shaft, a second end shaft and a protection sleeve. A first through hole, a second through hole and a third through hole are formed in the protection sleeve in sequence, the first end shaft penetrates through the first through hole, at least part of the magnetic core is arranged in the second through hole, and the second end shaft penetrates through the third through hole; the minimum distance between the center line of the protection sleeve and the hole wall of the first through hole is a, the minimum distance between the center line of the protection sleeve and the hole wall of the second through hole is b, and the minimum distance between the center line ofthe protection sleeve and the hole wall of the third through hole is c, wherein one or two of a and c are not equal to b. According to rotor shaft assembly, the problem is solved that in the prior art, when the end shafts and magnetic steel of a rotor shaft assembly are assembled, and the axis is not easily centered.

The invention discloses clad material solid / liquid composite horizontal continuous casting and forming equipment and method, and belongs to the technical field of clad material continuous casting. According to the clad material solid / liquid composite horizontal continuous casting and forming equipment and method, the measures that a core material protection device, a flow guide pipe, an inversion solidification device and the like are adopted and mounted below a crucible, core materials are not heated in advance, the inversion solidification device with small capacity is designed, the core materials are prevented from penetrating through clad layer melt metal for a long time, the melt metal flows out from the bottom of the crucible by relying on self-weight, and the size of the inversion solidification device and the size of a water-cooled crystallizer are controlled effectively are taken, the high quality clad materials of needed shapes and sizes are formed through horizontal continuous casting, and the equipment and the method are especially suitable for horizontal continuous casting forming of the large-size clad materials which are hard to reel up and has the melting point of the clad layer metal lower than that of the core material metal. The equipment and method have the advantages that the equipment is simple in structure, parts are easy to replace, operation and maintenance are convenient to carry out, layout is reasonable and compact, production efficiency is high, investment is small, automatic control is easy to achieve, large-scale industrial production is facilitated, the procedure of the forming process is short, energy is saved, environment is protected, efficiency is high, cost is low, the combination freedom of the clad layer metal and the core material metal is large, and the prepared clad materials are good in quality and performance.

A composite extracellular matrix biomaterial, with a middle layer comprising a decellularized small intestinal submucosa (SIS) (1), and a top layer and a bottom layer comprising a decellularized urinary bladder matrix (UBM) (2). The top and bottom layers completely cover the middle layer, thereby forming a sandwich structure. The sandwich structure allows the UBM (2) to isolate an antigenic property of the SIS (1) and to allowing the UBM to directly contact a host tissue, thereby realizing a high tissue compatibility. The SIS (1) can compensate for a shortcoming of low mechanical strength of the UBM (2). The composite extracellular matrix biomaterial can be used to fill, strengthen, repair, or reconstruct a damage or defect of a fascia, meninges, pleura, pelvic floor, dermis, solid organ, and various types of soft tissues.

The invention relates to a laser surface shock strengthening method, and in particular to an absorbing layer with flexibly variable thickness and an application method thereof. The absorbing layer with the flexibly variable thickness is applied to the laser shock strengthening of a small-pitch gear surface. The method is characterized in that three thick liquids which are prepared through different materials and are fixed in thickness are horizontally paved layer by layer in a special die and then properly heated to form a semi-solid absorbing layer with the flexibly variable thickness; then the semi-solid absorbing layer with the flexibly variable thickness is adhered to the tooth surfaces of a gear, and clearances among teeth are fully filled with a flexible part of the semi-solid absorbing layer; a smooth column surface can be formed on the outer wall of the absorbing layer; the absorbing layer is heated to be completely solidified; and finally a large-size overlapping laser shock method is carried out to uniformly strengthen the gear. The method has the advantages the thickness of the absorbing layer is flexibly variable; the outer wall of the absorbing layer adhered to the tooth surfaces of the gear can form the smooth column surface, so that the large-area overlapping laser shock treatment can be conveniently carried out for the gear, and as a result, the surfaces of a small-pitch gear and similar workpieces can be uniformly strengthened; and the absorbing layer is easily removed after the shock treatment is finished, and the demand of mass production can be met.

The invention discloses a carbon fiber matrix composite material and a preparation method thereof. The carbon fiber-based composite material includes a carbon fiber matrix, a primer and a topcoat in sequence; the carbon fiber substrate is a carbon fiber tube or a carbon fiber plate, the primer is a copper coating deposited by arc ion plating, and the topcoat is The layer is a metal coating or a cermet coating. The carbon fiber-based composite material of the present invention uses the copper coating prepared by the arc ion plating process as the undercoat layer, which has little restriction on the shape of the carbon fiber matrix, and the coating structure is uniform, which improves the interfacial bonding force of the carbon fiber-based composite material; Or cermet coating is used as the top coating. The composition, thickness and process of the top coating can be selected according to actual needs, ensuring the functionality of the composite material and finally realizing diversified applications.

The invention belongs to the technical field of clad material continuous casting, in particular to clad material solid / liquid composite dual-solidification continuous casting and forming equipment and method. The clad material solid / liquid composite dual-solidification continuous casting and forming equipment and method are characterized in that inversion solidification and forward solidification continuous casting and forming are combined, the measures that core materials are not heated in advance, an inversion solidification device with small capacity is designed, the core materials are prevented from penetrating through clad layer melt metal for a long time, the melt metal flows out from the bottom of a crucible by relying on self-weight, and the size of the inversion solidification device and the size of a water-cooled crystallizer are controlled effectively are taken, the high quality clad materials of needed shapes and sizes are formed through continuous casting, and the equipment and the method are especially suitable for continuous casting forming of the high quality clad materials with the melting point of the clad layer metal lower than that of the core material metal. The equipment and method have the advantages that the equipment is simple in structure, parts are easy to replace, operation and maintenance are convenient to carry out, layout is reasonable and compact, investment is small, industrialized application and popularization are facilitated, the procedure of the forming process is short, energy is saved, environment is protected, cost is low, the combination freedom of the clad layer metal and the core material metal is large, and the prepared clad materials are good in quality and performance.

An apparatus is provided for compensating for such deformations as occur in operation in first and second clamping surfaces intended for a tool in a press. The clamping surfaces are reciprocally moveable towards and away from one another in order to move a first and second part of the tool towards and away from one another, and the first and second tool parts have a first and second abutment surface for abutment against the first and second clamping surfaces and the deformations cause uneven pressure in at least one contact region between the tool and the clamping surfaces. According to the present invention, there is disposed, in at least one contact region between a clamping surface and an abutment surface, a power unit which, on activation, is operative to press, away from the clamping surface located in the contact region at least a part of the abutment surface of the tool located there.