35results about How to "Strong surface binding" patented technology

The invention provides a method for alleviating coking of cracking furnace tubes. The following steps are adopted: before coating the coke suppression coating on the inner surface of the cracking furnace tube, the inner surface of the cracking furnace tube is pretreated; the inner surface of the cracking furnace tube is coated with an anti-coking coating; and the coking inhibitor is added to the cracking raw material. The present invention reduces the formation of coking by compounding anti-coking technology, greatly reduces the coking rate of high-temperature cracking of hydrocarbons, and prolongs the service life of hydrocarbon cracking equipment.

The invention discloses a method for prompting protein crystallization by the use of bioglass. According to the method, superfine bioglass particles are mixed with a liquid for increasing surface activity of bioglass to form a suspension with long service life and stable properties; and the suspension is mixed with a protein saturated solution so as to form an environment which is beneficial to crystallization. After bioglass is made into the suspension, bioglass can be dripped by the use of a dropper to a place where the bioglass is required. Therefore, an application method of bioglass is greatly improved, and automation can replace manual work. The method is more suitable for large-scale protein crystallization condition screening. As the suspension, bioglass can be fully mixed with a protein solution when in use, and the contact surface with protein is larger, which is beneficial to crystallization under various conditions.

The invention relates to a filler used for a flame-retardant heat-resistant copper-clad laminate and a preparation method of the filler. The method comprises the following steps: taking nano silicon dioxide foam, dodecylbenzene sulfonic acid, bismuth nitrate pentahydrate, methyl trichlorosilane, polyoxyethylene sorbitan monooleate as raw materials to obtain the filler. According to the filler provided by the invention, the filler is used for preparing the flame-retardant heat-resistant copper-clad laminate, and the filler has excellent flame-retardant performance and heat-resistant performance, and satisfies the development and application of the flame-retardant heat-resistant copper-clad laminate.

The invention discloses a device and method for preparing metal composite materials with cladding structure by bidirectional extrusion, which belongs to the technical field of processing metal composite materials and includes: a fixed bracket, a composite extrusion die, an extrusion punch, an extrusion cylinder, a positive A forward extrusion device and a reverse extrusion device, the composite extrusion die is arranged between the forward extrusion device and the reverse extrusion device; the outer side of the composite extrusion die is provided with a mounting base, and the mounting base is fixedly connected with the fixed bracket; One end of the composite extrusion die is provided with a forward extrusion die, and the other end is provided with a reverse extrusion die; one end of the extrusion punch is matched with the forward extrusion die; the other end of the extrusion punch is matched with the positive extrusion die. Cooperate with the extrusion device; one end of the extrusion cylinder cooperates with the reverse extrusion die; the other end of the extrusion cylinder cooperates with the reverse extrusion device. The invention eliminates the defects of the blank by extruding the inner layer blank, and the generated new metal surface is subsequently extruded and compositely formed to obtain a composite material with strong surface bonding force and excellent mechanical properties of the material.