摘要:
A resin block has a treating solution channel extending between and opening at front and back surfaces thereof. Heat conductive members are face-bonded to the front and back surfaces of the resin block, respectively, for closing the channel. Consequently, no air is present between the resin block and heat conduction members, thereby improving the efficiency of heat exchange. A nozzle of simple construction is realized only by face-bonding the two heat conductive members to the open front and rear surfaces of the resin block. Temperature control plates hold the heat conductive m embers along with the resin block to effect a temperature control, whereby the temperature of a treating solution in the treating solution channel is controlled effectively through the heat conductive members. The treating solution adjusted to a desired temperature is delivered from a discharge opening to a substrate for performing substrate treatment with high accuracy.
摘要:
An apparatus including a tank having at least one side wall for receiving solid or semi-solid thermoplastic material and a base member supporting the side wall(s) for heating and melting the thermoplastic material. The base member has a heated upper surface sloped downwardly towards the side wall(s) for directing the flow of melted material, and is configured to provide a collection trough for receiving the melted material. A strainer is positioned above the collection trough to filter the melted material. The strainer is adapted to support the remaining solid or partially solidified thermoplastic material above a portion of the heated upper surface to provide a less restricted flow path for the melted material to the collection trough.
摘要:
A coated film forming method is capable of readily forming a coated film of a thermoplastic material on a coated region of an inner peripheral surface of a cylinder. A nozzle, through which a molten paste of a thermoplastic material kept molten is discharged, is disposed toward an inner peripheral surface of a cylinder. The nozzle is moved along a rotational central line of the cylinder while rotating the cylinder and discharging the molten paste from the nozzle. Centrifugal force acting on the cylinder being rotated leads to spreading of the molten paste applied to the inner peripheral surface of the cylinder. Viscosity of the molten paste, a rotational speed of the cylinder and a speed of movement of the nozzle are set so as to keep the molten paste discharged from the nozzle from being scattered to a region other than the coated region.
摘要:
A controller for a hot melt adhesive dispensing system has a main circuit board and power modules which are removably received on a controller enclosure. The power modules are directly couplable with the main board and with cord sets from heated hoses of the dispensing system, eliminating the need for wiring harnesses to be routed between these components. Accordingly, the main board and power modules may be readily removed and replaced in the field to permit efficient servicing and modification of the system to accommodate the needs of various applications.
摘要:
A dispenser includes an actuating section having a first moveable member and a hydraulic section coupled with the actuating section and having a second moveable member. The hydraulic section is adapted to dispense a liquid from an outlet therein and the actuating section is adapted to control dispensing of the liquid. An actuator assembly operatively couples the first moveable member with the second moveable such that the first moveable member is operative to move the second moveable member between open and closed positions for respectively starting and stopping flow of liquid from the outlet. The actuator assembly may include a pivoting lever arm having a first end operatively coupled with the first moveable member, a second end operatively coupled with the second moveable member and defining a fixed pivot point therebetween.
摘要:
Applicators and dispensing systems for dispensing liquid hot melt adhesives and methods of dispensing liquid hot melt adhesives. The dispensing system supplies the liquid hot melt adhesive in a non-activated state to the applicator. The liquid hot melt adhesive is processed to modify at least one activation-sensitive property before dispensing onto a substrate. The property may exhibit a temperature dependence, in which case the applicator or other structure near the applicator heats the liquid hot melt adhesive immediately before application. The property may exhibit a pressure dependence, in which case the applicator or other structure near the application applies pressure and/or shear forces to the liquid hot melt adhesive shortly before dispensing. Alternatively, a property that is both temperature and pressure dependent may be modified.
摘要:
The present invention discloses a photoresist coating system. The photoresist coating system mainly includes a chemical tank for positioning at least one photoresist bottle that is used for storing photoresist solution supplied to the photoresist coating system, a cooling system for chilling the photoresist solution in the photoresist bottle to a low temperature, a heating system for heating the photoresist solution transferred from the photoresist bottle to an adequate temperature, and an automatic photoresist feed system for draining and delivering the photoresist solution.
摘要:
The present invention generally relates to a hot molten adhesive application machine. More specifically the present invention discloses a unique hot melt adhesive application machine having a novel construction whereby the reservoir of molten adhesive material is heated from within the molten adhesive. The adhesive pump, discharge hoses, and discharge applicators are heated by electrical resistance heating elements that may operate on 120 or 240 volt current. Further, a novel axial pump piston is disclosed whereby the pump cylinder bore may be machined to a lessor tolerance standard than previous pumps of this type.
摘要:
A liquid coating device and method for coating a coatable composition on a workpiece to form a coating, wherein a parameter indicative of barometric pressure is measured and at least one thickness-affecting process parameter is adjusted in order to compensate for the effects of variations in barometric pressure on coating thickness uniformity.
摘要:
Apparatus and methods for applying heated sealants, such as molten polymeric material, to surfaces such as for filling cracks in pavement surfaces. Aspects of the invention include block cutting assembly, heated dispensing hose, and crack filling applicator head. By way of example, the block cutting assembly comprises a ram device for driving sealant blocks against a heated cutting member which severs the blocks to speed liquefaction within the heated sealant chamber. An associated enclosure incorporates a loading door preferably configured for operation in response to the position of the ram device. The heated dispensing hose may comprise a heating element running through the interior of the hose to heat sealants as they pass through the hose. The crack filling applicator head comprises a dispensing tube upon which a sealing chamber is coupled for retaining a quantity of liquid sealant proximal to the pavement surface being filled.