105results about How to "Control wall thickness" patented technology

Disclosed is a vehicle wheel which is excellent in appearance quality, is light, and has stiffness. The vehicle wheel (10) has a rim section (11) which has a substantially cylindrical shape and into which a tire (TR) is fit, and a disk section (12) having a substantially disk shape and bonded to the inside of the rim section (11), wherein the rim section (11) includes a rim body part (15) and a rim flange part (16), the rim body part (15) is formed such that the thickness of a part to which the disk section is bonded is thicker than the thicknesses of the other parts, and the rim flange part (16) is formed by bending both thin end parts of the rim body part (15) into a hollow shape.

The invention relates to a tissue engineering material and a preparation method thereof, in particular to a nano fiber tissue engineering blood vessel and a preparation method thereof. The invention consists of a three-dimensional reticular non-woven film formed by an inner layer of nano fiber and an outer layer of nano fiber; the inner layer of the blood vessel is natural polymer, wherein, calculated by weight, 40 percent to 80 percent is fibroin, 20 percent to 50 percent is gelatine, 0 percent to 20 percent is extracellular matrix protein; while the outer layer of the blood vessel is synthetic polymer. The preparation method is that the natural polymer is dissolved in trifluroroethyl and other solution, while the synthetic polymer is dissolved in hexafluoroisopropanol and other solution, which are respectively prepared into spinning solution; the static electricity spinning technique is adopted to subsequently form the inner and the outer layers on a gather roller; cross-linked treatment is conducted after the inner and the outer layers are taken down, to prepare the nano fiber tissue engineering vessel. The inner layer can simulate the structure of the extracellular matrix, provide good environment for endothelial cells to grow, support adhesion, proliferation and differentiation of the cells, and is good for endothelization of the blood vessel; and the outer layer has goodmechanical performance.

An apparatus for manufacturing products from material which is thermoplastically deformable, as from plastic, comprising: —a mold (2) with at least one mold cavity (3); —in the or each mold cavity (3) at least one slide (8); —movement means for moving each slide (8); —closing means for opening and closing the mold (2); —feed means for introducing, with the mold cavity (3) closed, said material in at least substantially plastic condition into the or each mold cavity; wherein the movement means (9) for moving the slide (3) are arranged for moving said slide forward at a relatively high speed relative to the movement speed of the mold parts upon opening and closing thereof, from a position at least partly retracted from the mold cavity, such that said material, as a result, is displaced in the mold cavity for obtaining the filling thereof, preferably at a speed high such that adiabatic heat development occurs in the or each mold cavity.