33results about How to "Reduce risk of defects" patented technology

The invention discloses a wall cloth attaching device capable of preventing wrinkles, and belongs to the technical field of attaching equipment. A wall cloth attaching device capable of preventing wrinkles comprises a shell, the inside of the shell is hollow, the top of the shell is rotationally connected with a cloth rolling roller shaft, symmetrical strip-shaped holes are formed in the side wallof the shell, supporting rods are slidably connected into the strip-shaped holes, and the ends, arranged outside the shell, of the supporting rods are rotationally connected with telescopic rollers.Supporting rods on the two telescopic rolling wheels at the front end extend into the shell and are rotationally connected with a driving disc, the center of the driving disc is rotationally connectedto the inner wall of the shell through a pin shaft, and the ends, away from the supporting rods, of the driving disc are rotationally connected with pressing roller supports; the compression roller support is arranged in the shell, the wall cloth is flatly attached to the surface of a wall through the compression roller shaft on the compression roller support, and the risk of defects occurring inthe attaching process is reduced; in addition, the process that a pressing wheel seam pressing procedure needs to be additionally added when traditional wall cloth is attached is avoided, and the working efficiency can be improved.

The invention discloses a layout treatment method for adding a photoetching process window. The layout treatment method comprises the following steps: providing a photoetching layout pattern with a shallow ion-implanted layer; finding a pattern boundary falling in a shallow groove insulation area from the photoetching layout pattern, wherein the distance from the pattern boundary to a first front layer pattern positioned in a photoresist open area is a first dimension, and the distance from the pattern boundary to a second front layer pattern positioned in a photoresist coverage area is a second dimension; and if the value of the first dimension is less than the value of the second dimension, moving the pattern boundary towards the direction of the second front layer pattern by a distance A1, if not, moving the pattern boundary towards the direction of the first front layer pattern by a distance A2, wherein the value of the A1 is less than the value of the second dimension, and the value of the A2 is less than the value of the first dimension. The layout treatment method disclosed by the invention can achieve the effect of adding the photoetching process window by utilizing the surplus distance space of a shallow ion-implanted layer layout, and can not influence parts because the ion implantation in the shallow groove insulation area is ineffective, and thus the risk of causing defects due to pattern distortion is effectively reduced and the finished product qualification rate is increased.

A software design method for GPRS multi-channel communication of a smart meter, comprising: dividing and classifying the business processes involved in the GPRS communication of the smart meter to obtain a plurality of independent steps, and the software of each step realizes independent functions and interfaces. Independent; classify and identify the parameters and methods involved in the GPRS connection channel of the smart meter to obtain an independent data structure; and when a remote TCP connection needs to be established, use the above data structure to instantiate an object, and Call each of the above software interfaces. The invention can improve the portability of software, reduce the workload of secondary development, and reduce the risk of software defects.

The invention discloses a wall cloth attaching device, and belongs to the technical field of attaching equipment. The wall cloth attaching device comprises a shell, wherein the interior of the shell is hollow, and the top of the shell is rotationally connected with a cloth rolling roller shaft; symmetrical strip-shaped holes are formed in the side wall of the shell, supporting rods are slidably connected into the strip-shaped holes, and the ends, arranged outside the shell, of the supporting rods are rotationally connected with telescopic rolling wheels; and the supporting rods on two telescopic rolling wheels at the front end extend into the shell and are rotationally connected with a driving disc, the central position of the driving disc is rotationally connected to the inner wall of the shell through a hinge pin, and the end, away from the supporting rods, of the driving disc are rotationally connected with a pressing roller support. According to the wall cloth attaching device, the pressing roller support is arranged inside the shell, and wall cloth is flatly attached to the surface of a wall through pressing roller shafts on the pressing roller support, so that the risk of defects occurring in the attaching process is reduced; and in addition, the wall cloth attaching device avoids the process that a pressing wheel seam pressing procedure needs to be additionally added when traditional wall cloth is attached, and the working efficiency can be favorably improved.

The invention discloses a pre-hardened mold steel replacing 45 mold steel and a preparation method thereof. The prehardened mold steel replacing 45 mold steel includes the following components in mass percentage: C: 0.18-0.22%; Mn: 1.6-1.8% ; Cr: 1.6~1.8%; S: ≤0.035%; P: ≤0.035%; the rest is Fe and impurities. Through the synergistic effect of carbon, manganese and chromium, the segregation of carbon element in the billet is slight, the internal and external hardness is uniform, 32~35HRC, reaching the quenched and tempered hardness of 45 die steel, which can replace 45 die steel, and can replace 45 die The use of steel means that it meets the requirements of use, so that the quenching and tempering heat treatment process can be omitted in the steel preparation process.