Abrégé

The present invention relates to the technical field of glass, and provides a radiation-resistant glass material, and a preparation method therefor and a use thereof. The radiation-resistant glass material comprises the following components in percentage by mole: 58-67% of silicon dioxide, 4-8% of aluminum oxide, 12-18% of calcium oxide, 7-18% of magnesium oxide, 0.5-1.2% of barium oxide, 0.1-0.8% of tin oxide, 0.5-1.2% of zirconium oxide, and 0.1-0.7% of a network change body, wherein the network change body is at least one compound formed by combining an element having a neutron capture reaction cross section not less than 100 b and an oxygen element. The radiation-resistant glass material provided by the present invention has excellent high-dose irradiation resistance, and has excellent mechanical properties and corrosion resistance.

Classes IPC  ?

• C03C 4/00 - Compositions pour verres ayant des propriétés particulières
• C03C 3/095 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant des terres rares
• C03C 3/087 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant de l'oxyde d'aluminium ou un composé du fer contenant un oxyde d'un métal divalent contenant de l'oxyde de calcium, p. ex. verre à vitre ordinaire ou verre pour récipients creux
• G21F 1/06 - CéramiquesVerresRéfractaires

Abrégé

A rock wool electric melting furnace liquid level monitoring apparatus, comprising: a photographing module (1), a photographing channel, and a calculation module. The photographing channel is located above a furnace cover of a rock wool electric melting furnace, one end of the photographing channel faces an opening of the furnace cover, the other end of the photographing channel is connected to the photographing module (1), and the photographing channel is used for protecting the photographing module (1), and enabling the photographing module (1) to capture a furnace wall image inside the rock wool electric melting furnace from the opening, the furnace wall image comprising a liquid level line; and the calculation module is connected to the photographing module (1), and is used for acquiring the furnace wall image, and calculating the height of the liquid level in the furnace on the basis of a plurality of frames of furnace wall images of a preset duration. Thus, the liquid level inside a rock wool electric melting furnace can be continuously monitored without shutdown. The present invention further relates to a rock wool electric melting furnace liquid level monitoring method and a rock wool electric melting furnace.

Classes IPC  ?

• G01F 23/00 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme
• G01F 23/80 - Dispositions pour le traitement des signaux

Abrégé

Embodiments of the present invention relate to the technical field of cotton spreading, and in particular to a cotton spreading machine. The cotton spreading machine comprises a rack, a supporting base, a conveying mechanism, a gear motor, a link, and a crank. The conveying mechanism is rotatably connected to the rack by means of a rotating fulcrum. The gear motor is arranged on the supporting base. A first end of the crank is fixedly connected to an output shaft of the gear motor, and a second end of the crank is rotatably connected to a first end of the link. The gear motor is used for driving the conveying mechanism to swing by means of the crank and the link. The conveying mechanism comprises a frame and two belt conveyors fixedly connected to the frame, a gap formed between the two belt conveyors is used for allowing a primary felt to pass through, a first strip-shaped hole is formed in the portion of the frame directly facing the gap, and a second end of the link is mounted in the first strip-shaped hole by means of a connecting shaft. The distance from the rotating fulcrum to the connecting shaft is changed by adjusting the mounting position of the connecting shaft in the first strip-shaped hole, so that the width of a secondary felt formed from the primary felt is adjusted. The present solution can ensure the production of products having different widths.

Classes IPC  ?

• B65H 45/107 - Pliage de bandes transversalement en combinaison avec la dépose en couches, c.-à-d. formant une pile en accordéon au moyen de barres de guidage à balancement ou à mouvement alternatif
• D04H 1/02 - OuateNappe

Abrégé

The present invention relates to the technical field of glass fiber surface treatment, and specifically relates to a glass fiber sizing agent and a preparation method therefor and a use thereof. According to the glass fiber sizing agent provided by the present invention, components are combined and the usage amount is adjusted, and particularly, different types of film-forming agents are selected for use in combination, waterborne polyurethane having different molecular weights is selected as a main film-forming agent, and a polyamide emulsion is used as an auxiliary film-forming agent, so that the high temperature resistance of the sizing agent is improved, and the sizing agent can meet temperature requirements for processing of a high-temperature-resistant thermoplastic nylon resin composite material, thereby significantly improving the compatibility and bonding capability between glass fibers and a base resin.

Classes IPC  ?

• C03C 25/465 - Revêtements contenant des matériaux composites
• C03C 25/32 - Composés macromoléculaires ou prépolymères obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone