58 results about "Flame polishing" patented technology

The invention relates to a method for preparing a micro optical element on a quartz glass substrate by applying femto-second laser, which is characterized by comprising three steps of femto-second laser irradiation, chemical etching and hydrogen-oxygen flame polishing. The method can achieve processing of any surface types including a plane, a standard spherical surface, a non-spherical surface and the like; and the step of the hydrogen-oxygen flame polishing only has a generated product of water, thus the method is environment-friendly, has quick polishing, avoids physical contacts and chemical reactions at the same time, and solves the difficulty which cannot be solved by a common polishing wheel because the high temperature of the flame can repair lattice damages caused by micro-machining.

Disclosed are optical resonators having low OH content in at least the near-surface region and a process for making low OH glass article by chlorine treatment of consolidated glass of the article. Cl₂ gas was used to remove OH from depth as deep as 350 μm from the surface of the consolidated glass. The process can be used for treating flame-polished preformed optical resonator disks. A new process involving hot pressing or thermal reflowing for making planar optical resonator disks without the use of flame polishing is also disclosed.

The invention provides a device for continuously preparing optical fiber preform rods and achieving drawing. The device comprises a preform rod preparation unit and a drawing furnace, the preform rodpreparation unit is internally provided with a degassing sintering unit, and the degassing sintering unit comprises heating devices arranged in a degassing sintering cavity of the degassing sinteringunit; a core-layer blow torch and a covering-layer blow torch are arranged above the degassing sintering unit; the preform rod preparation unit is provided with an upper tail gas exhaust pipe, and thelower portion of a deposition chamber is correspondingly provided with a lower exhaust pipe; a driving mechanism, a flame polishing device, the drawing furnace, a coating device, a curing device anda traction wheel are sequentially arranged below the preform rod preparation unit. According to the device, by specially designing a blow torch system, a preform rod motion system and the like of theoptical fiber preform rods, the optical fiber preform rods can be continuously prepared, and meanwhile the prepared optical fiber preform rods are drawn into optical fibers online.

The invention discloses a method for producing a special quartz glass holding stick and a device thereof. The raw material of quartz glass is first pulled to be a special stick blank with different diameters at the two ends; the special stick blank is then processed to be a special stick which is then done with flame polishing and precise annealing. The lower part of a melting furnace used for pulling the special stick blank is provided with a tapered feeding port the side wall of which has an induced angle of 30 degrees to 40 degrees with a horizontal plane and the diameter of which is 85 mm to 90 mm. The winding density at the lower part of a medium-frequency induction heating coil of the melting furnace is higher than that of the upper part thereof and the melting furnace adopts (medium-frequency induction) graphite for heating. The method of the invention leaves out the steps of welding of the special stick and annealing after the welding, which results in simple technology and improved production efficiency; additionally, products produced by the method has uniform inner texture and high bearing strength but no joints.

The invention relates to the technical field of semiconductors. The invention discloses a regeneration cleaning method for a quartz part of a semiconductor high-order process APC device. The regeneration cleaning method comprises the following steps: step 1, micro-powder sand blasting; step 2, physical polishing and grinding; step 3, flame polishing; step 4, high-temperature annealing; step 5, chemical cleaning: firstly, soaking in an ammonia water hydrogen peroxide solution at the temperature of 20-40 DEG C for 10 minutes, then soaking in a nitro-fluoro acid solution for 5-20 minutes, and finally, soaking in a nitro-fluoro acid solution for 5-20 min; step 6, ultrasonic cleaning; and step 7, washing and drying. According to the method, the cost is reduced, and the purpose of avoiding the corrosion problem of chemical film removal is achieved.

The invention relates to a quartz glass rod flame polishing and annealing method which is characterized by comprising the following steps: S1, mobile terminal feeding: firstly, clamping a quartz glassrod and rotating the quartz glass rod at a constant speed; S2, preheating: turning on a main combustor, controlling the required temperature, controlling a flame operation table to transversely reciprocate, and preheating the quartz glass rod; S3, polishing and annealing: the height and the angle of the auxiliary flame nozzle and the hydrogen and oxygen supply amount of the auxiliary heating areaare adjusted in advance; each auxiliary flame nozzle is opened; and at the moment, the displacement speed controller is adjusted, the flame operation table drives the flame spray gun fixed to the flame gun frame to heat and polish the quartz glass rod at a constant speed, meanwhile, the distance between the auxiliary combustors and the hydrogen and oxygen amount of each combustor control the temperature to form a temperature gradient, the quartz glass rod can be slowly cooled, and the annealing effect is achieved. The method has the advantages of being good in production quality and high in production efficiency.

The invention relates to a preparation method of a tensile optical fiber, and aims to solve the problem that the strength of an existing optical fiber is difficult to meet use requirements in some special application fields. The preparation method comprises steps: a quartz preform is subjected to flame polishing and acid etching treatment; a thin borosilicate glass tube is sleeved on the outer layer of the quartz preform; then wire drawing is carried out, low-speed wire drawing is adopted, the wire drawing speed is controlled within the range of 10-50 m/min, gradient annealing treatment is carried out after the optical fiber comes out of afurnace mouth, a gradient annealing mode withgradually-changed temperature is adopted, finally coating is carried out. The optical fiber drawn through the method canmeetthe high-strength use requirement.

The invention discloses a production method of smooth-surface domestic glass ceramic. The production method is characterized by comprising the first step of semi-finished product production, the second step of product flame polishing treatment, the third step of product shaping and the fourth step of annealing treatment. According to the method, the produced domestic glass ceramic product has a smooth surface, tiny cracks in the surface of the product are basically eliminated, burrs and coarse surfaces at edges are eliminated, the edges are flat and smooth, the product is neat and free of deformation in appearance, and the quality of the product meets the GB/T30771 'domestic glass ceramic' standard requirement.

The invention is mainly applicable to polishing quartz glass shell and discloses a quartz glass shell automatic flame polishing device which comprises a rack, a flame head special for polishing, a quartz glass shell carrier, a quartz glass shell carrying vertical shaft, a machining lot switching mechanism, a quartz glass shell rotating mechanism, a flame head moving mechanism, a limiting feedback mechanism and a control mechanism. The quartz glass shell carrier is controlled through the machining lot switching mechanism to move machining products different in lot and on the quartz glass shell carrier into or out of a machining station, the machining products are rotated at a constant speed through the quartz glass shell rotating mechanism, workstations of the flame head are controlled through the flame head moving mechanism and the limiting feedback mechanism, and the machining process is controlled through the control mechanism. The quartz glass shell automatic flame polishing device can integrate four advantages of accurate moving of the flame head, rotating of workpieces, machining of multiple workpieces at one time and timely switching among different machining areas, and a new design idea is provided for flame polishing equipment in the field.

The application discloses a manufacturing method for a bright optical lens. The manufacturing method comprises: mounting a pressing upper mold and a pressing lower mold; heating and softening glass; profiling the softened glass by using the pressing upper mold and the pressing lower mold so as to form a preliminary product of the optical lens; performing flame-polishing on the preliminary product of the optical lens; inspecting inherent defects of the preliminary product of the optical lens; and carrying out cold processing on the preliminary product of the optical lens that does not have the inherent defects. According to the production method for bright optical lens provided by the invention, the working efficiency can be improved, and the labor cost and the processing cost of follow-up process are lowered.

The invention relates to a forming method for bubble glass by means of flame polishing. The forming method comprises the steps that 1, a glass material is put in a glass furnace for heating to form glass metal; 2, the glass metal is directly conveyed into a mold for natural bending and disassembling and then made to produce uniform bubbles; 3, a swirlflame is used for heating the glass around the mold to raise the temperature of the glass around the mold; 4, the glass metal in the mold is pressed and formed, a strong wind is used for cooling and shaping the glass metal, and the glass is subjected to cooling and setting after demolding; 5, the product is cooled to the temperature of 480 DEG C to 520 DEG C and then conveyed into an annealing furnace to be cooled to normal temperature. Through the forming method for the bubble glass by means of flame polishing and devices thereof, glass waste can be reduced, consumption of the glass material can be reduced, and the utilization rate of the glass is greatly increased; meanwhile, finished product production processes are reduced, cutting, grinding and manual polishing are not needed, and therefore the product cost is greatly lowered.

Provided is an optical fiber glass base material manufacturing method that includes flame polishing an outside of a starting base material that includes a core and a first cladding with an oxyhydrogen flame and then arranging a glass fine particle synthesis burner facing the starting base material, which rotates, moving the starting base material and the burner back and forth relative to each other along the starting base material, and depositing glass fine particles produced by hydrolysis of glass raw material in the oxyhydrogen flame as a porous glass layer of a second cladding, the method comprising synthesizing and depositing the glass fine particles under conditions in which a hydrogen flow rate during a first back and forth deposition pass performed immediately after supply of raw material is started is greater than a normal hydrogen flow rate.

The invention discloses a flame polishing device and a flame polishing process for production of temperable ultra-white glass. The device comprises a processing base, a polishing wheel mechanism and aflame jetting mechanism, wherein the polishing wheel mechanism is installed on the upper left side of the processing base, the flame jetting mechanism is installed on the upper right side of the processing base, a fired tempered glass billet is placed on a polishing workbench, a polishing base and a front-end assembly are combined by properly adjusting the placing position, a bolt is mounted on aconnecting plate for fixing, a polishing wheel with proper parameters is selected to be mounted on a mounting shaft, a bolt is mounted on a fixing screw rod for fixing, a regulating valve on a gas conveying pipe is opened, a flame jet orifice jets flame, the flame jetting size is adjusted through an adjusting handle, and a rotating motor is started to drive the mounting shaft and the polishing wheel on the mounting shaft to rotate, so that the polishing wheel performs flame polishing process machining on the tempered glass billet in a flame spraying state, workers do not need to be in contactwith high temperature, and the flame polishing process is convenient to operate.

The invention discloses a manufacturing method of a precise 3D glass plate. The method is characterized by comprising the following steps: S1, the preparation of glass water; S2, compression molding;S3, high-temperature flame polishing; S4, annealing; S5, detection; S6, fine trimming; S7, polishing; and S8, tempering. The invention further discloses the precise 3D glass plate manufactured according to the manufacturing method of the precise 3D glass plate. According to the manufacturing method of the precise 3D glass plate disclosed by the invention, traditional process glass processing is combined with an existing electronic 3D glass processing process, the precision which cannot be achieved by glass produced by a traditional pressing and pressure blowing method is achieved, the defectsthat a glass product blank obtained by roughening plain glass in existing electronic 3D glass processing is high in height, large in cost and low in amplitude can be overcome, and the method of the invention has the advantages of low cost, high precision, high product percent of pass, high production efficiency and long service life.

The invention relates to a glass container surface flame polisher, which comprises a base, wherein a drive mechanism is arranged on the base; a transmission and speed regulation mechanism is arranged on the drive mechanism; a plurality of working positions for placing a glass container to be processed are arranged on the transmission and speed regulation mechanism; a plurality of molding air blowers are arranged under the working positions; a burner device is arranged at one side of the working positions; a high temperature hood covers outside the burner device; a longitudinal burner matched with the burner device is suspended above the working positions, and is driven and positioned by a burner positioning and driving device; the burner positioning and driving device comprises a burner rotator, a burner automatic lifter and a burner high-low positioner; the burner positioning and driving device is connected with an oxygen pipeline and a natural gas pipeline. The technical scheme provided by the invention can realize rapid surface polishing on the glass container with flaws on the surface so as to enable the surface temperature of the glass container to be even, solve the problems such as deformation and cracking, and ensure the uniformity of the quality of the processed glass container to be good.

The invention discloses a flame polishing device for an inner part of glassware and relates to the technical field of glassware processing. The flame polishing device comprises a base, wherein a driving mechanism and a feeding mechanism are fixed on the base; the driving mechanism is used for driving a rotary shaft; a spraying nozzle is fixed at one end of the rotary shaft; a connecting part whichis matched with the driving mechanism is fixed at the other end of the rotary shaft; the inner part of the spraying nozzle is in thread matching with a flow guide cap; a flow guide barrel is arrangedon one end face of the flow guide cap; a gap is formed between the flow guide barrel and the inner surface of the spraying nozzle; flow guide through channels are uniformly distributed and opened onthe peripheral side face of the flow guide cap along the axial direction; one end of the flow guide cap is a groove. According to the flame polishing device disclosed by the invention, the driving mechanism and the feeding mechanism are used for carrying out flame polishing on the inner part of the glassware; flame of the feeding mechanism is uniformly distributed through the driving mechanism, sothat the inner part of the glassware is uniformly polished; one spraying nozzle is connected and is used for adjusting the spraying-out volume of the flame.

The invention provides a glass flame polishing gun, and belongs to the technical field of glass polishing equipment. The glass flame polishing gun solves the problem that design in the prior art is not reasonable. The glass flame polishing gun comprises a gas storage chamber, and a gas inlet hole formed in the gas storage chamber is connected with an outer main gas input pipe. The glass flame polishing gun is characterized in that an outer main oxygen input pipe penetrates an oxygen inlet outer hole in the gas storage chamber to be connected with the oxygen storage chamber in the gas storage chamber. The glass flame polishing gun has the beneficial effects that the oxygen storage chamber is arranged in the gas storage chamber and isolated from the gas storage chamber, the utilization rate of the work space is increased, and due to the arrangement that the other end of a spray pipe assembly slightly stretches out of a gas spraying port assembly arranged on the gas storage chamber, and the gas and oxygen are in an outer mixing mode, flame stiffness is improved, and fire return is not likely to happen; and through the arrangement of a tooth-shaped supporting assembly, the oxygen storage chamber is easy to dismount and mount on the gas storage chamber, and gas in the gas storage chamber flows smoothly without obstructions.