TH19392B - Methods and equipment for casting long metal strips - Google Patents

Abstract

DC60 (27/05/41) Method and equipment for casting long metal strips. By sending molten metal The casting well (81) is sustained on a pair of parallel casting rollers (16) and the metal is passed down between the rollers to produce a rigid bar (20). It is controlled by the inflow control valve (47) at the start of the casting when the well (81) is being filled. Roller speed (16) is proportional to the variation between the actual level of the current pond. And the level that was supposedly Until the pond enters Near the desired operating level After that any variation Between the speed of the current roller and the speed of the desired operating roller Will be made happen To adjust the valve (47) to the level of the well And the speed of the roller to the valve in the desired operation Methods and equipment for casting long metal strips By sending molten metal The casting well (81) is sustained on a pair of parallel casting rollers (16) and the metal is passed down between the rollers to produce a rigid bar (20). It is controlled by the inflow control valve (47) at the start of the casting when the well (81) is being filled. Roller speed (16) is proportional to the variation between the actual level of the current pond. And the level that was supposedly Until the pond enters Near the desired operating level After that any variation Between the speed of the rollers in that region and the desired operating roller speed Will be made happen To adjust the valve (47) to the level of the well And the speed of the roller to the valve in the desired operation

Claims (8)

1.Methods for casting long strips Which consists of Conduction of molten metal through a valve Controls flow and enters a pinhole between a pair of chilled parallel casting rollers to create a sustained casting pond on the rollers. Limiting the scope of the casting pond At the end of the clamping hole by the end cap for Narrow the pond Rotating the roller to cast a rigid bar that is passed downwards from the clamping hole. Throughout the initial period During the start of the metal casting when the casting pond is being filled To get close to the desired operating level The current speed variation of the cast rollers in Response to the variation during the actual measurement of the pond level at that time. And the value of the level of the well at that time was estimated In order to control the elevation of the pond Until the pond level approaches The desired operating level and throughout the final period Will compare the measurement of the current roller speed with the Required operating roller speed And causes any variation during the rate measurement The speed of the rollers at that time And the speed of the desired operating roller To adjust the control valve A flow that controls the inflow of molten metal to the casting pond. To open the way to the level Of the pond at that moment and the speed of the roller at that moment Be brought within the correct size range Predetermined Estimate the level of the well in operation. And the speed of the required rollers 2. The method for claiming the right to claim 1 will also consist of an activation process. Such flow control valve During that initial period In a predefined sequence of controls that determines the value of the current pond level that is supposed to be said. That way, the value of the pond level in That moment was supposedly It will follow the pattern of filling into a specific pond. 3. The method, as claimed, in claim 2, in which the value of the pond level at that time was supposed to increase progressively towards the desired operating pond level. 4. Procedures for claiming rights in claim 1 after the expiration of the initial period and The last period Also consists of the process of stimulating the flow control valve in the Meet the measure of the pond level at that time And variations in roller speed at the same time in response to those same measurements. In order to maintain the level of the pond And the speed of Rollers within the aforementioned predetermined tolerance range, in order to maintain the The state is consistent, at least 5. The long metal bar casting device consists of a pair of parallel casting rollers. That creates a clamping hole between them, a metal transmission system for delivering molten metal Into the clamping hole To create a casting pond Molten metal Sustained above the clamping hole In which the transmission system entered There will be a control valve. Adjustable flow To control the flow of metal To a pair of casting ponds to narrow the end caps Which has one placed at each end of the ball Rolling for a casting pair Roller drive mechanism For rotating the roller in the opposite direction To send a long, molded bar To the bottom from the clamping hole Pond level receiver To observe the level of the casting pond And produce signal Pond level measurement Roller speed signal receiver To observe the speed of casting rollers and produce roller velocity measurement signals and process control mechanisms. To obtain sump level and roller velocity signal and to control flow control valve and casting roller drive mechanism. In response to those signals A process control mechanism will be created and planned to perform the task. Throughout the first period Start when casting metal When the casting pond is being filled to get closer to the desired operating level. To vary the instantaneous velocity of the casting rollers in response to the variation between the measurement of the actual sump level and the value of the current pond level that is predicted in order to control the elevation. Of the pond Until the pond level approaches the desired operating level And to perform work During the last time in order to compare the current roller speed measurement with the desired operating roller speed. And causes any variation between the roller speed measurement At that moment and the speed value of the operating roller required to adjust the valve Control that flow It controls the flow of molten metal to the casting pond to allow for the current sump level and to measure the speed of the current roller. Was brought inside Predefined tolerance range Estimate the level of the well in operation and the velocity of Desired roller 6. Equipment as requested in claim 5, which the process control mechanism can Preconditioning is possible to activate the flow control valve in a predetermined sequence of controls that determines the value of the so-called current level of the well. In such a way that the value of the level Of the pond at that time that was supposed to follow a specific pond filling pattern 7. Equipment as requested in claim 6 that the process control mechanism can Preconditioning to perform a job in such a way that the value of the then-anticipated level of the well will be progressively added to the desired operational well level. 8. Equipment as requested in claim 5, the process control mechanism will still be Build and lay out to perform further tasks. After the end of the initial and final period to activate the flow control valve in response to the current sump level measurement and to simultaneously vary the roller velocity in response to the same measurement. Those In order to maintain sump level and roller speed within the aforementioned tolerance ranges, estimate the sump level in operation and the roller speed required.