摘要:
A method for making crayons is provided. The method employs an apparatus which includes a base that houses a heating component, a melt pan disposed to absorb heat from the heating component, a mold, and a cover. The melt pan receives crayon material and contains it as the heating component increases the temperature, causing the crayon material to liquefy. The liquefied crayon material can then be drained by the user of the device, into a mold with crayon-shaped cavities. A timer and a cover prevents access to the melt pan and the mold during particular operating conditions of the apparatus.
摘要:
A tire T is vulcanized by heating the tire T from both an outer forming surface So of an outer mold 2 for forming an outer surface of the tire T and an inner forming surface Si of an inner mold 3 for forming an inner surface of the tire T. The inner forming surface Si is divided into a plurality of inner forming surface portions Si1, Si1 and Si2 in accordance with portions of the tire T, and the inner mold 3 is provided with heaters 5U, 5L and 5M capable of heating the inner forming surface portions Si1, Si1 and Si2 at different temperatures. Since the tire is vulcanized while varying the heating temperatures from inside of the tire in accordance with the portions of the tire, it is possible to vulcanize each of the portions of the tire under optimal temperature condition without generating uneven temperature between upper and lower portions, and it is possible to enhance the performance of the tire.
摘要:
Method and apparatus for making and coating a plastic lens. Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens curing rate. Lens is postcured while in a mold cavity using a conductive heat source.
摘要:
Method for making a plastic lens is provided. More particularly, a method for applying alternating periods of ultraviolet light to a lens forming composition is described. The lens forming composition is cured while controlling the rate of heat generation and/or dissipation via manipulation of the duration of the ultraviolet light or the cooling in the curing chamber. The ultraviolet light is preferably directed toward the lens forming composition which is disposed in a mold cavity formed by two mold members. The ultraviolet light may be directed in pulses or continuously.
摘要:
The die-lip is heated by an electric heater cable wrapped into a groove positioned close to the lip. The heater cable is pressed radially against the lip-side of the groove by many individual Vee-shaped spring-clips, which are arranged in a contiguous series around the circumference of the groove.
摘要:
A method and apparatus for increasing pasta production and for ensuring a more uniform and quality pasta product which includes heating the die face of a die by positioning on the die face an electric resistance heater.
摘要:
Apparatus for increasing pasta production and for ensuring a more uniform and quality pasta product which includes heating the die face of a die by positioning on the die face an electric resistance heater.
摘要:
Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure.
摘要:
A method for joining at least two plastic elements in a liquid- and/or gastight manner, whereby an edge of a first plastic element is at least partially placed in an opening of a second plastic element, the edge of the first plastic element being folded over an edge of the opening of the second plastic element under plastic deformation, using a pressure device. The edge of the first plastic element is pressed against a curved butting face of a pressure body placed in the second plastic element at the opening thereof and the edge of the first plastic element along the butting face is pushed radially outwardly and over the edge of the opening of the second plastic element. The edges of both plastic elements are pressed together by exerting pressure on both sides of the edges. Alternatively, use is made of a sealing ring at least partially between the edges.
摘要:
An apparatus for continuously mixing and heating flowable materials comprises an inclined housing, at least two rotatable screws within the housing with each screw having a rotatably mounted shaft and a screw flight. The screws are arranged in parallel juxtaposition with their respective flights of opposite hand intermeshing. The shafts are driven in opposite rotation to each other and each shaft is hollow and is provided with electric heaters within the shaft for heating the flowable material.