6results about How to "Guaranteed roughness" patented technology

The embodiment of the invention provides a printing control method, electronic equipment, a storage medium and a program product. The method comprises the steps that a task queue sent by a non-real-time application kernel is received through a communication protocol, and the task queue comprises a plurality of to-be-processed tasks corresponding to the five-axis laser printing equipment; determining a task type and a real-time requirement level corresponding to each to-be-processed task; according to the task type and the real-time requirement level corresponding to each to-be-processed task, adjusting the task priorities of the plurality of to-be-processed tasks to obtain a task priority queue; determining distributed system resources corresponding to the to-be-processed tasks according to the task priority queue and the current resource state; and executing each to-be-processed task according to the task priority queue and the allocated system resources corresponding to each to-be-processed task. The method is used for achieving the effect of improving the reliability of the printing system.

This application relates to a lead-bismuth removal cleaning solution, its preparation method, its application method, and its cleaning system. The lead-bismuth removal cleaning solution provided in this application has low volume fractions of hydrogen peroxide and acetic acid, making it mild and safe. Furthermore, by rationally proportioning the volume fractions of hydrogen peroxide and acetic acid, the solution can accelerate the dissolution of lead and bismuth. Moreover, the weakly acidic nature of the solution can prevent excessive corrosion of the materials being cleaned, thus ensuring their roughness and achieving a good lead-bismuth removal effect.

This invention relates to the field of semiconductor processing technology, specifically to a polishing pad dresser and its usage method. The polishing pad dresser provided by this invention includes a polishing pad with several protrusions on its surface, the protrusions being adapted to rub a wafer when the polishing pad rotates; a base located on the side of the polishing pad; a transmission assembly rotatably connected at one end to the base; a dressing assembly including a body and a dressing head, one end of the body being connected to the other end of the transmission assembly, and the other end being movably connected to the dressing head; a diamond dressing layer is provided at the end of the dressing head near the polishing pad; and a first air outlet is located on the side of the dressing head near the polishing pad. The first air outlet provided by this invention adds a method for adjusting the roughness of the polishing pad by blowing air, and by combining it with the diamond dressing layer, extends the service life of the diamond dressing layer.

This invention discloses a carbon-coated raspberry-like SiO2 2 Nanomaterials, including carbon layers and modified raspberry-like SiO2 encapsulated within the carbon layers. 2 Nanomaterials with a carbon layer thickness of 10–300 nm and a surface roughness Ra of 10–100 nm, modified raspberry-like SiO 2 The nanomaterials exhibit positively charged groups on their surface under acidic conditions and have a particle size of 10–300 nm. This invention also discloses the aforementioned carbon-coated raspberry-like SiO₂. 2 The preparation method of nanomaterials first involves preparing raspberry-like SiO₂ with different roughness through weak alkaline etching. 2 Nanomaterials, and then prepare raspberry-like SiO 2 The nanomaterials are modified, hydrothermally carbonized, dried, and washed. This invention features a simple, low-energy-consumption, and environmentally friendly preparation process, resulting in a carbon layer that coats raspberry-like SiO₂. 2 Nanomaterials have rough surfaces, large specific surface areas, are rich in hydrophilic oxygen-containing groups, and have controllable carbon layer morphology, which can promote the efficient hydrolysis of cellulose into sugars in low-acid aqueous systems.

This utility model discloses a painting device for a production line of slate-coated flooring, belonging to the technical field of slate-coated flooring production equipment. It includes a painting rack for supporting the slate-coated flooring, a fixed frame welded to the top of the painting rack, and multiple air inlets for air intake on the side of the fixed frame. Each of the multiple air inlets is equipped with a fan. A sliding groove is provided on the vertical inner wall of the fixed frame, and a filter plate frame for support is slidably installed inside the sliding groove. A filter plate for filtering air is installed inside the filter plate frame. A heating pipe for heating air is installed on the vertical inner wall of the fixed frame. This painting device for a production line of slate-coated flooring can improve air filtration capacity, prevent solid particles in the drying gas from directly adhering to the uncured paint film surface, avoid particle protrusions or pits, ensure the surface roughness of the flooring, and improve aesthetics and tactile feel.

The application provides a kind of based on multi-axis linkage's precision milling closed loop optimization and real-time control process of screw rod, including collecting workpiece geometric parameters, material properties and machine tool dynamics parameters, designing tool and fixture scheme, and setting initial machining parameters based on cutting database;Utilize NURBS curve to construct high-precision curved surface model of screw rod helical groove, optimize path through curvature adaptive discretization and quintic spline interpolation;Adopt real number coding genetic algorithm to iteratively optimize idle stroke path, shorten total path time and reversing frequency;Realize multi-axis synchronous control through inverse kinematics solution, and dynamically adjust tool inclination angle based on contact angle in real time;Use virtual simulation and finite element analysis to predict cutting force, thermal deformation and interference risk.The application generates continuous smooth multi-axis synchronous command, effectively reduces the positioning error of each axis, and dynamically corrects the tool inclination angle through the force feedback of the contact angle, effectively suppresses the cutting force fluctuation, and ensures that the roughness of helical groove tooth surface meets the requirements.