Provided is a coolant spray module system for a heat treatment metal product, comprising: a first coolant spray module (1), wherein the first coolant spray module (1) comprises a first module housing (10), a first module cover (20), and a first nozzle (30), wherein the first nozzle (30) is fixed between the first module housing (10) and the first module cover (20) by first nozzle fixing blocks (13) and second nozzle fixing blocks (23), wherein the coolant spray module system sprays the coolant onto the heat treatment metal product to quench and clean the heat treatment metal product.

A steel strip processing system is provided that includes a plurality of microstructure sensors that measure the phase fraction in a steel strip at desired locations in a processing furnace. A process control system includes a plurality of control loops for receiving the outputs of the microstructure sensors to determine the amount of heating and cooling required to achieve a desired phase fraction at the desired locations in the processing furnace. One or more energy systems that receive the output of the process control system to coordinate the heating or cooling of the desired locations to achieve the desired phase fraction.

A method of forming a hot stamped, die quenched, and die trimmed part is provided. The method includes hot stamping and die quenching a blank with a quench die and forming a die quenched panel. The quench die includes at least one slow-cooling channel. The die quenched panel is die trimmed along the at least one localized soft zone that is adjacent a hard zone. The blank may be formed from a press hardenable steel (PHS), and the at least one soft zone may have a ferritic microstructure and the at least one hard zone may have a martensitic microstructure. The at least one localized soft zone may have a microhardness between about 200 HV and about 250 HV and the hard zone may have a microhardness between about 400 HV and about 500 HV.

Systems and methods of quenching a metal substrate include cooling a top surface and a bottom surface of the metal substrate until a strip temperature is cooled to an intermediate temperature. Cooling of the top surface of the metal substrate is discontinued when the strip temperature reaches the intermediate temperature, and cooling of the bottom surface of the metal substrate continues until the metal substrate reaches a target temperature, where the target temperature is less than the intermediate temperature.

A cooling water temperature control method, includes: calculating thickness of a water film remaining on a steel sheet; calculating a change in the thickness of the water film; calculating a change in temperature of the steel sheet; calculating a steel sheet temperature on an exit side of a draining roll at which a position where the thickness of the water film on the steel sheet becomes zero coincides with an exit side position of a drying equipment, and setting the calculated temperature to a lower limit value; calculating a steel sheet temperature on the exit side of the draining roll at which the steel sheet temperature on the entrance side of coating equipment coincides with a predetermined temperature and setting the calculated temperature to an upper limit value; and controlling the temperature of cooling water within a range of the lower limit value and the upper limit value.

A method for producing a three-dimensional molded object includes a solidified layer forming step, a cooling step, and a warpage measuring step. The solidified layer forming step is performing a recoating step and a solidifying step and maintaining a solidified layer at a molding temperature which is equal to or more than a martensitic transformation start temperature. The cooling step is cooling the solidified layer from the molding temperature to a cooling temperature which is less than the molding temperature and equal to or less than a martensitic transformation finish temperature. The warpage measuring step is measuring warpage of the solidified layer or warpage of a portion that deforms with a deformation of the solidified layer. The solidified layer forming step and the cooling step are repeated while a difference between the molding temperature and the cooling temperature is changed according to the magnitude of the warpage.

The present invention provides a method of dynamical adjustment for manufacturing a thermally treated steel sheet.

A high pressure, high temperature spray cooling system for heat transfer. The system includes: a supply tank having a heater and a high pressure pump; and a spray chamber spaced apart from the supply tank. The spray chamber has a workpiece receiving bed and a nozzle spaced apart from the workpiece receiving bed. The supply line has a first supply line end and a second supply line end. The first supply line end is connected to the supply tank and the second supply line end is connected to the nozzle so that the contents within the supply tank are supplied to the nozzle through the supply line at a high pressure to cool a workpiece on the workpiece receiving bed.

A method for producing a three-dimensional molded object includes a solidified layer forming step, a cooling step, and a warpage measuring step. The solidified layer forming step is performing a recoating step and a solidifying step and maintaining a solidified layer at a molding temperature which is equal to or more than a martensitic transformation start temperature. The cooling step is cooling the solidified layer from the molding temperature to a cooling temperature which is less than the molding temperature and equal to or less than a martensitic transformation finish temperature. The warpage measuring step is measuring warpage of the solidified layer or warpage of a portion that deforms with a deformation of the solidified layer. The solidified layer forming step and the cooling step are repeated while a difference between the molding temperature and the cooling temperature is changed according to the magnitude of the warpage.

The present invention provides an alloyed Al plated steel sheet for hot stamping, which is a steel sheet having, on the surface, an AlFe alloyed layer that includes an A phase (FeAl-based alloy phase including 45% to 85% of Fe and 4% to 13% of Si) and has a thickness of 15 m or more, in which a proportion of a length occupied by the A phase in an uppermost surface of a cross section perpendicular to the surface of the steel sheet is 10% or more and 50% or less.