5results about How to "Overcome costs" patented technology

The application relates to a high-strength weather-resistant gas shielded welding wire and a preparation method and application thereof, and belongs to the technical field of welding materials. The chemical composition of the welding wire comprises, in mass fraction, C: 0.06%-0.10%, Mn: 1.65%-2.00%, Si: 0.65%-0.80%, P: 0.03%-0.10%, S: <=0.015%, Cr: 0.55%-1.00%, Ni: 0.30%-0.80%, Cu: 0.30%-0.45%, Mo: 0.10%-0.25%, Ti: 0.03%-0.10% and base element Fe. The Si-Mn-P-Ni-Cr alloy system is adopted, the contents of alloy elements such as Cr and Ni are reasonably designed, the mechanical properties of deposited metal are ensured, the corrosion-resistant element P is added, and the component range of P is optimized and adjusted, so that the corrosion resistance of the deposited metal is obviously improved on the basis of maintaining good mechanical properties.

This invention discloses a triphenylamine-mediated photocatalytic isomerization method for olefins from E to Z, belonging to the field of organic synthesis technology. This invention uses triphenylamine and 4-nitrotriphenylamine, triphenylamine compounds, as photocatalysts to catalyze the E-Z isomerization of olefins. Their molecular structures have a propeller configuration, which can drive olefin configuration inversion through triplet energy transfer without the need for metal participation, achieving low-cost, highly stable, and mild E-Z isomerization of olefins. This invention is carried out at room temperature, without the need for high temperature and pressure, resulting in low energy consumption and environmental friendliness. It has a wide substrate applicability, exhibiting good catalytic activity for olefins with different substituents such as methyl, halogen, cyano, and hydroxyl groups, with product yields reaching up to 92%. The operation is simple, the reaction process is straightforward, and it is suitable for large-scale production applications.

Embodiments of the present application provide a substrate manufacturing method, a substrate, a display module and an electronic device, and relate to the display field, to solve the problem of complicated process and high cost when forming vias with different depths in the substrate. The substrate manufacturing method comprises: forming a photoresist on the side of the functional film layer away from the substrate; forming a first opening and a groove in the photoresist, the first opening penetrating through the photoresist, and the groove not penetrating through the photoresist; etching the functional film layer and the photoresist to form a first via at the position corresponding to the first opening in the functional film layer and a second via at the position corresponding to the groove, the depth of the first via being greater than the depth of the second via; and stripping the photoresist.

The application relates to a small-sized compressor with oil-gas separation, and relates to the technical field of small-sized compressors, and comprises a compressor main body, an oil-gas separator and a lubricating oil recovery system. The application improves the oil-gas separation efficiency by arranging a cyclone separation device and a spiral flow guide structure. When compressed air enters the separation cavity from the compressed air exhaust port of the compressor main body, the spiral flow guide structure first guides the airflow to preliminarily rotate, so that part of oil droplets are thrown to the cavity wall under the action of centrifugal force; then the airflow flows through the cyclone separation device, the rotating speed is further improved, and the remaining oil droplets are completely separated. Compared with the traditional single centrifugal separation, the double rotation strengthens the separation effect of the oil droplets and the air, solves the problem of low separation efficiency at low rotating speed, and enables the clean air after separation to be stably discharged from the clean air exhaust port; the cyclone separation device is adopted to replace the filter element of the traditional filtering separation, thereby reducing the maintenance cost.