11 results about "Thin sheet" patented technology

The invention relates to a retrogression treatment process of a 6000-series aluminum alloy thin plate for an automobile, and belongs to the field of aluminum alloy heat treatment. For a T4-state alloyplate, after being subjected to solution hardening, the 6000-series aluminum alloy automobile body thin plate is placed at room temperature for 10 months or above; for a T4P-state alloy plate, afterbeing subjected to solution hardening, the 6000-series aluminum alloy automobile body thin plate is immediately subjected to pre-ageing treatment and then is placed at room temperature for 10 monthsor above; the solution hardening temperature ranges from 550 DEG C to 570 DEG C, and the time ranges from 15 min to 30 min; the retrogression treatment temperature ranges from 175 DEG C to 300 DEG C,and the time ranges from 1 min to 15 min; and the pre-ageing temperature ranges from 50 DEG C to 150 DEG C, and the time ranges from 5 min to 8 h. Through the reasonable retrogression treatment process, the hardness of the alloy plate placed for a long time can be remarkably reduced, performance is kept stable in the short term, punching forming is facilitated, meanwhile, excellent baking hardenability is obtained, and the rapid ageing effect is achieved.

A plant (10) for the production of highly flexible and relatively thin sheets or panels (38) of agglomerate material comprising: a mixer crusher (12), a hopper (15) designed to accept the crushed and rolled material (24) and to transfer it to a distributor or spreader (16) positioned below the hopper, said spreader (16) comprising a substantially cylindrical container (30) with a loading opening (31), adjacent, in use, to said hopper (15) and comprising a discharge slot (32) on the opposite side to said opening (31), and a mixing device of the agglomerate material (24) inside said container (30). The mixing device comprises a pair of blades (35) fixed to a shaft (34) rotating around an axis not corresponding to that of said container (30) and in particular offset towards said slot (32), so that during their rotation the blades almost skim said slot.

The invention provides a large-size ceramic decorative sheet and a formula process.The large-size ceramic decorative sheet comprises a blank layer and a glaze layer.The blank layer comprises a front side and an adhesive side, the front side is a plane, and the adhesive side is a concave-convex side with grooves.The specification of the blank layer is at least 900 mm*1800 mm, and the thickness of the blank layer is 5.5 mm.The glaze layer comprises a glaze bottom layer, a pattern layer and a glaze surface layer, the front side of the blank layer is evenly covered with the glaze bottom layer, the pattern layer is printed on the upper side of the glaze bottom layer, the pattern layer and the glaze bottom layer are covered with the glaze surface layer, and the thickness of the glaze layer is at least 0.3 mm.Formulas include a blank layer formula, a glaze bottom layer formula and a glaze surface layer formula.Pressure of dry pressing in the technological process is 240 MPa, drying temperature is 120-286 DEG C, the drying period is 62 min, upper temperate of firing temperature is 1196 DEG C, lower temperature of firing temperature is 1193 DEG C, and the sintering period is 73 min.

The invention relates to a liner plate tool for correcting a thin aluminum alloy plate. The liner plate tool for correcting the thin aluminum alloy plate comprises an aluminum plate and a steel plate, wherein one face of the aluminum plate is connected with the steel plate; at least one fixed groove is formed in the other face of the aluminum plate. The fixed groove in the toll can lock a welded joint, or stays close to the surface of a plate so as to play a role of a pad; the other side is mechanically knocked by a copper hammer and an aluminum hammer special for distortion correction by flame, so that the aims of correcting deformation of a hull, in particular to the aim of correcting a curved section are achieved.

The invention discloses a low-friction coefficient and low-ripple degree metal sheet. A plurality of tiny pits which are round or roughly circular are distributed in the surface of the metal sheet, the diameter of each pit is 30-150 microns, and the overlapping amount between every two adjacent pits is smaller than 10 percentage; and the proportion of the surface area of the portion, occupied by pits of each square millimeter, of the surface of the metal sheet where the pits are located is larger than 30%, and the number difference of the pits in any unit of square millimeter of the surface isless than 20%. According to the reasonable optimization design on the surface microstructure, the friction coefficient and the ripple degree can be effectively reduced, and the forming and painting performances of the material are improved.

The invention belongs to the technical field of temperature sensors, and specifically relates to a slice-type temperature sensor. The sensor comprises bimetallic strip. The bimetallic strip is connected with two wires. The bimetallic strip is divided into a No.1 metal sheet and a No.2 metal sheet. The thermal expansion coefficient of the first metal sheet is larger than that of the second metal sheet. A third metal sheet is arranged on the side, away from the second metal sheet, of the first metal sheet, the thermal expansion coefficient of the third metal sheet is larger than that of the first metal sheet, a fourth metal sheet is arranged on the side, away from the first metal sheet, of the second metal sheet, and the thermal expansion coefficient of the fourth metal sheet is smaller thanthat of the second metal sheet. According to the temperature sensor, the metal sheet with the larger thermal expansion coefficient is additionally arranged at the tail end of the bimetallic strip, sothat the arc bending angle of the bimetallic strip is enlarged, the control range of the bimetallic strip is enlarged through the arc bending angle of the bimetallic strip, and then the application range of the temperature sensor is enlarged.