摘要:
Provided are a method for producing a phosphor-encapsulating capillary tube in which, when a phosphor is encapsulated thereinto, fluorescence from the phosphor is less likely to leak from an end of the capillary tube; and such a phosphor-encapsulating capillary tube. One end portion 10A of an elongate glass capillary tube 10 having an outer shape of a transverse cross-section elongated in a width direction thereof is heated until the one end portion 10A of the glass capillary tube 10 has been melted, integrated, and thus sealed.
摘要:
The method and apparatus serve to treat a multi-walled glass body, in particular a glass body (20) with a glass membrane (25) for a chemical sensor or measuring probe, wherein a portion of at least one wall or of an interior tube (21) is to be fused, and wherein the fusing can have the purpose of closing off a first chamber (291). A glass element (286) which serves to absorb radiation energy is inserted in the vicinity of the portion (210) of either the wall or of the interior tube (21) that is to be fused. The glass element (286) is exposed to the radiation energy of at least one energy radiator (17), whereby the glass element (286) and the portion (210) of either the wall or the interior tube (21) are fused together.
摘要:
Method of manufacturing an electric lamp having a glass tubular part (101) with a longitudinal axis, which part is sealed by a sealing member in which firstly a constriction with a collar (105) is formed by means of heating at one end of the tubular part whereafter the sealing member is secured in a gas-tight manner. The constriction in the tubular part is provided at some distance from the end whereafter in the same fixture the tubular part is divided by means of fusing at the area of the constriction and the two wall portions located on either side of the constriction are moved apart in the axial direction.
摘要:
A process for forming lamp capsules such as in the manufacture of miniature arc lamps wherein the bulb portion of the capsule is formed by blowing molten glass into a mold while simultaneously press sealing the lead assembly. The molding and sealing process is accomplished with heat application by means of a press foot assembly closed for a predetermined period of time such as one second to press seal the blank capsule against the lead assembly with one portion of the press foot assembly, and simultaneously to blow mold the blank capsule into another preformed portion of the press foot assembly to form the bulb portion of the lamp capsule.
摘要:
Inner and outer blow-moulded glass bulbs, each open at one end thereof, are positioned one inside another on an apparatus having a chuck means which holds the bulbs in a spaced apart relation. The apparatus includes pivotally moveable gripping means which engage outer surface edges of the outer bulb along the open end thereof and positively hold such surface edges against an adjacent support surface while deformation heat and force are applied to the outer bulb surfaces above such edges to selectively compress or stretch such outer bulb surfaces toward the adjacent inner bulb surfaces. Thereafter, the surfaces of the inner and outer bulbs which are in contact with one another are fused together and the open ends of the respective bulbs are sealed to one another to define a container mouth.
摘要:
A production method for a closed glass container containing at least one solid body is disclosed. The method includes providing a tube tapering toward one end, the inner diameter of which is smaller at a tapered end than an inner diameter at an opposite first end. The tube is connected at the tapered end to a first end of a straight bar tube. The tapered tube is charged with at least one solid body.
摘要:
A method for manufacturing an all-glass solar heat collecting tube without a tail pipe. The bottom of one end of an inner glass tube plated by a selective absorbing coating layer is rounded, the other end is connected to a first glass outer tube. The bottom of one end of a second glass outer tube is rounded and the other end is flared. The connected inner glass tube/first glass outer tube is inserted into the second glass outer tube. A gap is formed between the first glass outer tube and the second glass outer tube to serve as an air exhausting channel. The first glass outer tube is inserted into the flared opening of the second glass outer tube. The contact point between the first glass outer tube and the second glass outer tube is heated to frit seal and butt joint.
摘要:
A method for manufacturing a glass tube used for a fluorescent lamp having an arc tube constructed by joining a plurality of glass tubes is provided. According to this method, a straight glass tube held at both ends is rotated, and a predetermined cutting portion of the glass tube is softened by heating, and then the glass tube is moved in the heated state in the direction toward the predetermined cutting portion to form a glass accumulated portion at the area of the predetermined cutting portion. Next, the glass tube is drawn away in the direction receding from the predetermined cutting portion, and the predetermined cutting portion of the glass tube is cut into two glass tubes having self-closing end walls. In this way, the end walls of the self-closed glass tubes can be formed thicker and more uniform compared to those obtained by the conventional techniques, and the mechanical strength of the end walls also can be improved. As a result, the defective percentage of the lamps during the manufacturing process and on the market due to cracks, leakage, or damages in the end walls of the glass tubes can be reduced.
摘要:
A method of manufacturing a low-pressure arc discharge lamp formed by interconnecting two or more adjacent glass discharge tubes. A hermetically sealed common passageway between the two adjacent tubes is formed by positioning the tubes in a contiguous relationship to define at least one common location of contact. Heating a preselected area of the internal surface of each of the tubes relative to the common location of contact to soften the glass to the extent a common passageway is defined between the tubes. Thereafter, separating the tubes a predetermined distance while the glass is in a softened state to stretch the softened glass, thereby extending the common passageway between the tubes. The technique may be applied to multiple tube assemblies precoated with a luminescent layer by alternating the end of the tube at which the passageway is formed. Once the tubes are joined, they may be processed by current manufacturing techniques to produce a low-pressure arc discharge lamp.