3results about How to "Consistent hardness" patented technology

This invention discloses a tableting device and tableting process for improving the quality of drug tableting, relating to the technical field of drug tableting equipment. The device includes a base, a top seat, an upper hydraulic cylinder, an upper template, and a lower template. Multiple upper pressure columns are fixedly installed at the bottom of the upper template, and multiple mold cylinders are embedded in the lower template. Each mold cylinder has a mold cavity inside, with the bottom of the upper pressure columns penetrating into the cavity. A lower punching mechanism is located above the base. Through the punching mechanism, the lower and upper pressure columns simultaneously perform bidirectional punching, fundamentally eliminating the axial pressure attenuation and density gradient problems caused by traditional unidirectional punching. This results in consistent hardness between the upper and lower layers of the tablet and uniform internal stress distribution, significantly reducing the risk of tablet cracking and loosening. It also greatly improves the batch-to-batch and batch-to-batch consistency of dissolution curves for sustained-release tablets, thereby improving the tableting quality.

The utility model discloses a surface heat treatment device for corrugated roller production, including coaxial arrangement's inductive heating subassembly and cooling subassembly, the heating ring main part of inductive heating subassembly is by two coaxial, same diameter and inner ring surface is located the same circumference open ring annular body interval combination and is formed, and two annular body open ring place electricity is connected and is connected electrode connecting rod respectively, the hollow upper ring body of cooling subassembly sets up the inclined inner ring surface, and the inner ring surface array has first water spray hole and hole axis is perpendicular to the inner ring surface. The structural design of heating ring main part ensures its with corrugated roller surface distance everywhere is consistent, improves heating homogeneity, and the first water spray hole of upper ring body is inclined setting, has avoided the short circuit, magnetic field disorder problem that horizontal water spray is easy to splash to heating ring to initiate, has overcome the defect that vertical water spray covers insufficiently. Both coaxial synergistic effect, effectively promote the homogeneity of corrugated roller heating and cooling, guarantee its hardness is consistent, reduces equipment failure and maintenance frequency, improves production efficiency and product pass rate.

This utility model provides a stainless steel cold-rolled annealing assembly, belonging to the technical field of stainless steel cold-rolled annealing. It includes two cooling rollers, each with multiple heat dissipation grooves, a spiral guide rib installed on the inner wall of each roller, two symmetrical baffles installed on each spiral guide rib, and threaded rods installed at both ends of the inner wall of each roller. This structure, by creating heat dissipation grooves, significantly increases the contact area between the roller and the air compared to traditional smooth rollers or simple grooves. This allows for more efficient transfer of heat absorbed by the roller to the air, accelerating heat dissipation, improving overall cooling efficiency, avoiding uneven cooling of the coil caused by localized overheating of the roller, and ensuring consistent hardness across all areas of the coil. Simultaneously, a ceramic wear-resistant coating is sprayed onto the non-contact side of the spiral heat dissipation grooves. This coating has high hardness and strong wear resistance, effectively resisting the erosion and friction of impurities in the cooling environment against the groove walls.