Not Applicable
Not Applicable
This invention is an apparatus for cooling a metal object that has been heated above the curing point such that as the metal object cools the metal object retains its original shape.
When a metal object is heated above its curing temperature, the metal object deforms as it cools, losing its original shape and utility unless the metal object is contained within a mold or framework. Because of the problem of deformation, a metal object cannot be fabricated in a particular shape and later modified using heating techniques without the metal object becoming deformed. The press quench machine is designed to supply a framework for the metal object's shape such that when the preformed metal object is inserted into the framework, pressure is applied to the metal object. The metal object can then be submerged in a quenchant bath for a sufficient duration to allow the metal object to cool below the curing temperature. Because the framework places confining pressure on the metal object during the cooling process, the metal object does not deform and when the metal object is removed from the framework it will still possess the same shape it possessed prior to heating.
In U.S. Patent Application TBD Hill teaches a metal coating method for the purpose of fusing an abrasion resistant and wear resistant coating onto a piece of metal.
In U.S. patent application Ser. No. 61/818,436 Hill teaches a wear coating and method of application to a flat agricultural disk.
A press quench machine designed with a pressure assembly with a plurality of stops and plurality of upper vertical die plates and a plurality lower vertical die plates. Said stops, upper vertical die plates and lower vertical die plates designed to form the structure of a metal object such that when the metal object is heated and then inserted into the pressure assembly, pressure is placed on the metal object to ensure that as the metal object cools it retains its original shape. The press quench machine further consists of a quenchant bath to facilitate the cooling of the heated metal object.
The press quench machine 1 comprises a pressure assembly 2, a quenchant bath 3 and a recirculation tank 4.
The pressure assembly 2 is that portion of the press quench machine that holds and applies pressure to a metal object 5 and comprises a plurality of stops 6, an upper base mount 7 with a plurality of upper vertical die plates 8 extending downward from the upper base mount 7, a lower base mount 9 with a plurality of lower vertical die plates 10 extending upward from the lower base mount 9. The plurality of stops 6 ensure that when the metal object 5 is inserted into the pressure assembly 2 the metal object 5 is properly oriented relative to the upper vertical die plates 8 and the lower vertical die plates 10. The upper vertical die plates 8 and the lower vertical die plates 10 are designed so that the ends opposite the respective upper base mount and lower base mount form a framework that along with the plurality of stops 6, create a framework that conforms to the original shape of the metal object 5 so that when the upper vertical dies plates 8 and lower vertical die plates 10 are pressed against the metal object 5 the combined upper vertical die plates 8, lower vertical die plates 10 and plurality of stops 6 apply pressure to the metal object 5 so that as the metal object 5 is cooled, the metal object 5 retains its original shape. The height of the upper base mount 7 relative to the lower base mount 9 is adjustable so that when a metal object 5 is inserted between the upper base mount 7 and the lower base mount 9, the upper base mount 7 can be lowered onto the metal object 5 to exert pressure on the metal object 5. There is also a plurality of nozzles 14 attached to the pressure assembly 2.
The height of the pressure assembly 2 is adjustable such that the pressure assembly 2 can be lowered into the quenchant bath 3. The quenchant bath 3 is of sufficient size so that the quenchant bath 3 can be filled with sufficient quenchant to cool the metal object 5 held by the pressure assembly 2, allow the pressure assembly 2 to be completely submerged during cooling, and does not allow the quenchant to overflow the quenchant bath 3.
The recirculation tank 4 holds additional quenchant, comprises a heat exchanger 11, is connected to the quenchant bath 3 by a plurality of hoses, the bath hoses 12 and the recirculation tank 4 is connected to the pressure assembly 2 by separate plurality of hoses, the cooling hoses 13. There is also a means of transferring the hot quenchant from the quenchant bath 3 to the recirculation tank 4 through the bath hoses 12 and a means of transferring cooled quenchant from the recirculation tank 4 to the nozzles of the pressure assembly 2 through the cooling hoses 13. The bath hoses 12 from the quenchant bath 3 to the recirculation tank 4 transfers heated quenchant from the quenchant bath 3 to the recirculation tank 4. The heat exchanger 11 within the recirculation tank then extracts excess heat from the heated quenchant. The cooled quenchant can then be transferred from the recirculation tank 4 through the cooling hoses 13 to the pressure assembly 2. At the pressure assembly 2, the cooling hoses are connected to a plurality of nozzles 14 that spray the cooled quenchant on the metal object 5 as the metal object 5 is being submerged and while the metal object 5 is being submerged and directing the spray evenly across the metal object while submerged such that the spray ensures the metal object 5 evenly cools.
In one preferred embodiment, the metal object is a flat circular disk so that the pressure assembly is set up so that the plurality of stops, upper vertical die plates and lower vertical die plates are set to accept, apply pressure to and ensure the retention of the original shape of said flat circular disk.
In a second preferred embodiment, the metal object is an undulating circular disk so that the pressure assembly is set up so that the plurality of stops, upper vertical die plates and lower vertical die plates are set to accept, apply pressure to and ensure the retention of the original shape of said undulating circular disk.
Number | Date | Country | |
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61818436 | May 2013 | US |