摘要:
A method for designing a diamond coated wire for use in a wafer slicing system includes adjusting an initial diamond size distribution until an intermediate diamond size distribution is generated, wherein the intermediate diamond size distribution has a corresponding simulated penetration thickness value less than or equal a predetermined penetration thickness value, and wherein penetration thickness is a parameter proportional to a depth of subsurface damage that would occur when slicing an ingot using a diamond coated wire having an associated diamond size distribution. The method may include adjusting the intermediate diamond size distribution until a final diamond size distribution is generated, wherein the final diamond size distribution has a maximum diamond grit size that is substantially equal to a predetermined maximum diamond grit size, and manufacturing the diamond coated wire such that the diamond coated wire has a plurality of diamond grits that fit the final diamond size distribution.
摘要:
An electric double-blade slot cutting machine include a first cutting unit having a first cutting part and provided along a cutting route and presents a reciprocating movement; a second cutting unit having a second cutting part provided along the cutting route and presents the reciprocating movement, wherein moving directions of the first cutting unit and the second cutting unit is opposite while cutting; a restriction holder for restricting the first cutting unit and the second cutting unit to moving along the cutting route; a transmission unit; and a motor. With the foregoing structure, the electric double-blade slot cutting machine can work with small vibration and stable performances; a speed of the motor is increased for improving work efficiency; and with an extension rod, the electric double-blade slot cutting machine is adaptable for standing utilization.
摘要:
A motor-driven concrete cutting saw and method in which the motor has an idler gear, a top slider gear slidably engageable and disengageable with the idler gear; and a bottom slider gear slidably engageable and disengageable with the idler gear. Both the top and bottom slider gears have two toothed disks, and the idler gear has two toothed disks, a main gap, and a third toothed disk. The toothed disks are sized to produce, when engaged with one another, multiple speeds including a neutral setting that would allow the motor to disengage from the saw blade while running.
摘要:
A method for slicing a plurality of wafers from a crystal includes providing a crystal of semiconductor material having a longitudinal axis, a cross section and at least one pulling edge. The crystal is fixed on a table and guided through a wire gang defined by sawing wire so as to form the wafers. The guiding is provided by a relative movement between the table and the wire gang such that entry sawing or exit sawing using the sawing wire occurs in a vicinity of the at least one pulling edge of the crystal.
摘要:
One aspect of the present invention relates to a method for increasing the temperature of a substance which is initially in an at least partly solidified state in a container, where at least one heat exchanger is arranged in the container. One object is to obtain that the temperature of a substance may be changed relatively fast. This is obtained by having pumping means for displacing the substance, exchanging heat between a heat exchanger and the substance, displacing substance with the pumping means for increased heat exchange between the heat exchanger and the substance, as well as stirring the substance with the pumping means by displacing the substance inside the container. When the substance is displaced, then not only stagnant substance is in contact with the heat exchanger for heat exchange. The amount of substance in contact with the heat exchanger is thereby greatly increased, and the heat transfer is less dependent on thermal conductivity of the substance.
摘要:
The present invention is a band saw cutting apparatus including: a cutting table on which an ingot is horizontally placed; an endless-belt blade provided in a tensioned state between pulleys, the blade having a blade-abrasive-grain portion and a blade base; and a coolant spraying opening for spraying a coolant on the blade, the band saw cutting apparatus cutting the ingot by relatively feeding the blade from above to below, the blade being driven to rotate by rotating the pulleys, wherein the pulleys is configured to be rotatable about an axis thereof in both directions, and a direction of driving to rotate the blade can be changed to cut the ingot. As a result, there is provided a band saw cutting apparatus and an ingot cutting method that can stably secure the quality of the ingot to be cut, increase the lifetime of the blade, and improve the productivity.
摘要:
There is provided a method of cutting or drilling workpiece including stone such as marble and granite, brick, concrete and asphalt, using a frame gang saw. There are provided a workpiece cut by a frame gang saw that includes one or a plurality of blades having multiple cutting tips or that includes a blade without including a cutting tip; a method of cutting the workpiece by using a frame gang saw; and a product provided by the cutting method. The workpiece is provided to include one or more grooves into which at least a portion of at least one cutting tip among the multiple cutting tips or at least a portion of the blade without a cutting tip is inserted and which is formed in a surface thereof. Here, an initial cutting time on a workpiece may be shortened to greatly improve productivity and the quality of a product and a lifespan of a frame gang saw blade may be improved by significantly decreasing deflection in the blade.
摘要:
The present disclosure generally relates to methods for recovering silicon from saw kerf, or an exhausted abrasive slurry, resulting from the cutting of a silicon ingot, such as a single crystal or polycrystalline silicon ingot. More particularly, the present disclosure relates to methods for isolating and purifying silicon from saw kerf or the exhausted slurry, such that the resulting silicon may be used as a raw material, such as a solar grade silicon raw material.
摘要:
A wire slicing system and method for using it include one or more of the following features: arrangements and/or operations that relate to handling the wire; apparatus and methods that relate to wire tensioning; equipment and techniques for manipulating the workpiece; arrangements and/or operations designed for cooling and swarf (debris) removal; controls and/or automation that can be used in conjunction with these features.
摘要:
A multi-wire saw according to the present invention cuts a workpiece while supplying a slurry containing an alkali or mixed acid to a cutting interface between the workpiece and a wire, and includes: a storage tank with a heating mechanism for storing and heating the slurry; a thermal insulating pipe for transporting the slurry sent with a pump from the storage tank with a heating mechanism to a position before a position where the wire is incorporated into the workpiece, while keeping the slurry at a predetermined temperature; a thermostat for keeping a temperature in a vicinity of the workpiece fixed to a stage at the predetermined temperature; and a wire heating mechanism for heating the wire to the predetermined temperature. Consequently, the cutting resistance decreases during cutting machining of a silicon ingot, and the variation in the cutting resistance also decreases, whereby a high-quality wafer can be obtained at a high efficiency and a low cost.