摘要:
In the process for partially shaping, a glass/glass ceramic article (5) is held on a planar support plate (1) by suction. The glass/glass ceramic article is heated to soften it, so that it has a viscosity below 106 dPa•s. After the softening one or more shaping dies (4) is or are moved upward through an opening or respective openings (3) in the support plate to form raised regions in the softened glass/glass ceramic article (5). The suction force is produced by a low pressure in a hollow compartment (2) below the support plate (1) and acts on the glass/glass ceramic article (5) by means of a gap (G) formed between each shaping die (4) and the support plate. Additional openings can be provided in the support plate and/or in one or more of the shaping dies to assist in applying the suction force to the glass/glass ceramic article. After solidification of the softened glass/glass-ceramic article the shaping die or dies (4) is or are withdrawn. Then the partially shaped glass/glass ceramic product is removed by compressed air and/or mechanically with lifting members (8). An apparatus for performing this process is also described.
摘要:
A line fitting employs blocks secured together with a stud and a nut and having gaskets or seals which militate against permeation of CO2 when subjected to high pressures and high temperatures, the seals are also resistant to decompression damage.
摘要:
A fiber optic connector for connecting fiber optic light cables together includes a light housing for connection to a first fiber optic light cable and a coupling for connection to a second fiber optic light cable. The coupling includes a cage having a spring for locking the light housing to the coupling to connect the first fiber optic light cable and second fiber optic light cable together into a single light source.
摘要:
A refrigerant access manifold for a refrigerant system includes a manifold block for coupling a plurality of refrigerant system components together to allow refrigerant to flow therethrough and at least one access port in the manifold block to provide access to the refrigerant.
摘要:
Isocyanatoalkyl sulphonates of the general formula ##STR1## wherein the substituent meanings are as given in the description are obtained by reacting the corresponding isocyanatoalkyl halides with sulphonic acid esters of the formula ##STR2## wherein R.sup.3 has the meanings given in the description. They are used as cross-linking agents in polyamines.
摘要:
An air conditioner system fitting includes a first seal portion comprising a metal material adapted to provide a primary seal, and a second seal portion attached to a free edge of the first seal portion and adapted to provide a secondary seal, wherein the fitting militates against leakage during operation of the air conditioning system.
摘要:
A lithium-containing, transparent glass-ceramic material is provided. The material has low thermal expansion and has an amorphous, lithium-depleted, vitreous surface zone. The zone is at least 50 nm thick on all sides and encloses a crystalline interior, which has high transmission. The material includes a transition region connecting the zone and the interior.
摘要:
The apparatus performs a forced reshaping of a flat green glass part during a ceramicizing process in which the viscosity of the glass is temporarily lowered due to crystallization heat. The apparatus includes a continuous furnace (3) for the ceramicizing process: a reshaping device (2′) provided with activating openings (6); and vertically movable pressure-operated reshaping tools (9) arranged in the reshaping device (2′). The furnace (3) is provided with lateral openings (4) for temporarily connecting activating lines (8) to the activating openings (6) of the reshaping device (2′) in a sealed manner in order to operate the reshaping tools (9) by supplying pressurized air to the reshaping device or by producing a low pressure in the reshaping device (2′).
摘要:
In the process for partially shaping, a glass/glass ceramic article (5) is held on a planar support plate (1) by suction. The glass/glass ceramic article is heated to soften it, so that it has a viscosity below 106 dPa·s. After the softening one or more shaping dies (4) is or are moved upward through an opening or respective openings (3) in the support plate to form raised regions in the softened glass/glass ceramic article (5). The suction force is produced by a low pressure in a hollow compartment (2) below the support plate (1) and acts on the glass/glass ceramic article (5) by means of a gap (G) formed between each shaping die (4) and the support plate. Additional openings can be provided in the support plate and/or in one or more of the shaping dies to assist in applying the suction force to the glass/glass ceramic article. After solidification of the softened glass/glass-ceramic article the shaping die or dies (4) is or are withdrawn. Then the partially shaped glass/glass ceramic product is removed by compressed air and/or mechanically with lifting members (8). An apparatus for performing this process is also described.
摘要:
In the process for partially shaping, a glass/glass ceramic article (5) is held on a planar support plate (1) by suction. The glass/glass ceramic article is heated to soften it, so that it has a viscosity below 106 dPa·s. After the softening one or more shaping dies (4) is or are moved upward through an opening or respective openings (3) in the support plate to form raised regions in the softened glass/glass ceramic article (5). The suction force is produced by a low pressure in a hollow compartment (2) below the support plate (1) and acts on the glass/glass ceramic article (5) by means of a gap (G) formed between each shaping die (4) and the support plate. Additional openings can be provided in the support plate and/or in one or more of the shaping dies to assist in applying the suction force to the glass/glass ceramic article. After solidification of the softened glass/glass-ceramic article the shaping die or dies (4) is or are withdrawn. Then the partially shaped glass/glass ceramic product is removed by compressed air and/or mechanically with lifting members (8). An apparatus for performing this process is also described.