TWI513523B - Hot rolling apparatus - Google Patents

Description

Hot rolling equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an inter-thermal calendering apparatus for drawing a metal sheet by passing an electric current through the metal sheet so that the temperature of the metal sheet rises and maintains a constant temperature to facilitate calendering of the metal sheet.

In the existing calendering process, a metal plate is first placed in a heating furnace for heating, so that the metal plate reaches a suitable rolling temperature and is conveyed to a calendering machine through a conveyor to perform a calendering process, but During the conveying process, the metal plate is exposed to the process environment and the conveyor table absorbs the temperature of the metal plate, thereby causing the temperature of the metal plate to decrease. When the temperature of the metal plate is lowered and the temperature is uneven, the rolled material is caused. Uneven mechanical properties.

An inter-thermal calendering apparatus according to the present invention is for increasing the temperature of the metal sheet and maintaining a constant temperature during the calendering process when calendering a metal sheet, so that the metal sheet is subjected to a calendering process.

The main object of the present invention is to provide an inter-thermal calendering apparatus for calendering a metal sheet, the inter-heating apparatus comprising a power supply, a first roller set and a second roll set, the power supply having a a first electrode end and a second electrode end, the first roller set has a first roller, a second roller and a first passage between the first roller and the second roller, a first spacing between the first roller and the second roller, the first electrode end is electrically connected to the first roller set, and the second roller set has a third roller, a fourth a roller and a second passage between the third roller and the fourth roller, the third roller and the fourth roller have a second spacing, the second spacing is not greater than the first a second electrode end electrically connected to the second roller set, the metal plate moving toward the second roller set via the first roller set, when the metal plate passes through the first passage and the second passage a first end of the metal plate contacts the first roller and the second roller and a second end of the metal plate The third contact roller and the fourth roller so that the first electrical terminal, the first roller set, of the metal plate, the second roller set and the second electrical terminal constituting a current loop.

When the current supplied by the power supply device passes through the metal plate, the temperature of the metal plate rises and maintains a constant temperature during the calendering process, so that the second roller set can calender the metal plate.

Referring to FIG. 1 , an embodiment of the present invention discloses an inter-thermal calendering apparatus 100 including a power supply 110 , a first roller set 120 , and a second roll set 130 . In the example, the first roller set 120 is disposed on a guiding machine A, and the second roller set 130 is disposed on a calender B.

Referring to FIG. 1 , the power supply 110 has a first electrode end 111 and a second electrode end 112. In this embodiment, the first electrode end 111 is a positive terminal, and the second electrode terminal 112 is negative. Extremely, the power supply 110 is used to provide a current.

Referring to FIGS. 1 and 2, the first roller set 120 has a first roller 121, a second roller 122, and a first between the first roller 121 and the second roller 122. a first spacing D1 between the first roller 121 and the second roller 122. In the embodiment, the first roller 121 and the second roller 122 are disposed on the guiding machine. A, and the first roller 121 rolls in a first direction, the second roller 122 rolls in a second direction opposite to the first direction, the first roller set 120 is used to guide a metal plate 200, in order to move the metal plate 200 toward the second roller set 130.

Referring to FIGS. 1 and 2, the first electrode end 111 of the power supply 110 is electrically connected to the first roller set 120, and the first electrode end 111 is electrically connected to the guiding machine A, the first The roller 121 or the second roller 122, when the first electrode end 111 is electrically connected to the guiding machine A, the guiding machine A can be associated with the first roller 121 and the second roller 122 One or both of them are electrically connected, so current can flow through the guide A to one or both of the first roller 121 and the second roller 122, or, in different embodiments, The first electrode end 111 can be electrically connected to one or both of the first roller 121 and the second roller 122.

Referring to FIGS. 1 and 2, the second roller set 130 has a third roller 131, a fourth roller 132, and a second between the third roller 131 and the fourth roller 132. The channel 133 has a second spacing D2 between the third roller 131 and the fourth roller 132. The second spacing D2 is not greater than the first spacing D1. In the embodiment, the third roller 131 And the fourth roller 132 is disposed on the calender B, and the third roller 131 rolls in the first direction, the second roller 122 rolls in the second direction, and the second roller set 130 is used The metal plate 200 is rolled so that the thickness of the metal plate 200 is reduced by the third roller 131 and the fourth roller 132.

Referring to FIGS. 1 and 2, the second electrode end 112 of the power supply 110 is electrically connected to the second roller set 130. The second electrode end 112 is electrically connected to the calender B and the third roller. The wheel 131 or the fourth roller 132, when the second electrode end 112 is electrically connected to the calender B, the calender B can be one of the third roller 131 and the fourth roller 132 or The two are electrically connected, so that current can flow through the calender B to one or both of the third roller 131 and the fourth roller 132, or, in different embodiments, the second electrode end 112 may electrically connect one or both of the third roller 131 and the fourth roller 132.

Referring to FIGS. 1 and 2, the metal plate 200 passes through the first passage 123 and is sandwiched by the first roller 121 and the second roller 122. The metal plate 200 faces the first via the first roller set 120. The second roller set 130 moves. When the metal plate 200 passes through the first passage 123 and the second passage 133, a first end 210 of the metal plate 200 contacts the first roller 121 and the second roller 122, and a second end portion 210 of the metal plate 200 contacts the third roller 131 and the fourth roller 132, the first electrode end 111, the first roller set 120, the metal plate 200, the The second roller set 130 and the second electrode end 112 form a current loop.

Referring to FIGS. 1 and 2, when the current supplied by the power supply 110 passes through the metal plate 200, the temperature of the first roller set 120, the metal plate 200, and the second roller set 130 is caused. Raising, so that the metal plate 200 has good formability, so that the third roller 131 and the fourth roller 132 are rolled to the metal plate 200. In the embodiment, the metal plate 200 is made of a material The magnesium alloy material is preferably made of a magnesium alloy material having a hot rolling temperature of from 200 ° C to 350 ° C, which allows the magnesium alloy to have good formability.

Calculate the formula based on heat: In the embodiment, the metal plate 200 has a mass and a specific heat, the first roller 121 has a mass and a specific heat, and the product of the mass of the first roller 121 and the specific heat is greater than the metal plate 200. The mass of the product is the product of the specific heat, so that the temperature of the first roller 121 is not excessively high under the same power supply time condition. Preferably, the second roller 122 or The product of the mass of the third roller 131 or the fourth roller 132 and the specific heat is also greater than the product of the mass of the metal plate and the specific heat to avoid the second roller 122 or the same power supply time. The temperature of the third roller 131 or the fourth roller 132 is too high.

Referring to FIGS. 2 and 3 , in the embodiment, the first roller 121 , the second roller 122 , the third roller 131 , and the fourth roller 132 respectively have an accommodation space S. The accommodating space S can accommodate a coolant W. Preferably, the coolant W can flow in the accommodating space S to avoid the first roller 121, the second roller 122, and the third. The roller 131 and the fourth roller 132 are too long due to the inter-heat rolling process, and the first roller 121, the second roller 122, the third roller 131, and the fourth roller 132 are overheated. Causing the first roller 121, the second roller 122, the third roller 131, and the fourth roller 132 to be damaged, or causing the metal plate 200 to fail to be rolled, and the coolant W can be used in the capacity The flow in the space S can control the temperatures of the first roller 121, the second roller 122, the third roller 131, and the fourth roller 132, and by controlling the first roller 121, the first The temperatures of the second roller 122, the third roller 131, and the fourth roller 132 maintain the temperature of the metal plate 200 passing through the third roller 131 and the fourth roller 132 at a constant temperature to perform a rolling process. .

Referring to FIG. 3, the inter-heating device 100 further includes a flow guiding member 140 having a liquid inlet 141 and a liquid outlet 142. The coolant W is filled through the liquid inlet 141. The accommodating space S is discharged from the accommodating space S. In the embodiment, the flow guiding member 140 has a guiding tube 143, and the guiding tube 143 is inserted into the accommodating space. In S, a first nozzle 143a of the draft tube 143 communicates with the liquid inlet 141. A second nozzle 143b of the draft tube 143 is located in the accommodating space S, and the coolant W passes through the second tube. The port 143b flows to the accommodation space S.

The current circuit is formed by the first electrode end 111, the first roller set 121, the metal plate 200, the second roller set 122 and the second electrode end 112, so when the power supply 110 is When the current supplied through the first electrode end 111, the first roller set 121, the metal plate 200, the second roller set 122, and the second electrode end 112 constitute a current loop, the metal plate 200 can be The temperature rises and maintains a constant temperature, so that the metal plate 200 has good formability.

The scope of the present invention is defined by the scope of the appended claims, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are within the scope of the present invention. .

100‧‧‧Thermal calendering equipment
110‧‧‧Power supply
111‧‧‧First electrode end
112‧‧‧second electrode end
120‧‧‧First Roller Set
121‧‧‧First Roller
122‧‧‧Second roller
123‧‧‧First Passage
130‧‧‧Second roller set
131‧‧‧third roller
132‧‧‧fourth roller
133‧‧‧second channel
140‧‧‧ deflector
141‧‧‧Inlet
142‧‧‧liquid outlet
143‧‧‧drain tube
143a‧‧‧first nozzle
143b‧‧‧ second nozzle
200‧‧‧Metal plates
A‧‧‧ guiding machine
B‧‧‧calender
D1‧‧‧first spacing
D2‧‧‧second spacing
S‧‧‧ accommodating space
W‧‧‧ Coolant

Fig. 1 is a perspective view showing the "intercalation rolling apparatus" of the present invention. Fig. 2 is a side view of the "intercalation rolling apparatus" of the present invention. Fig. 3 is a cross-sectional view showing the "roller of the hot rolling apparatus" of the present invention.

100‧‧‧Thermal calendering equipment

110‧‧‧Power supply

111‧‧‧First electrode end

112‧‧‧second electrode end

120‧‧‧First Roller Set

121‧‧‧First Roller

122‧‧‧Second roller

123‧‧‧First Passage

130‧‧‧Second roller set

131‧‧‧third roller

132‧‧‧fourth roller

133‧‧‧second channel

200‧‧‧Metal plates

A‧‧‧ guiding machine

B‧‧‧calender

Claims (9)

An inter-thermal calendering apparatus for calendering a metal sheet, the inter-heating apparatus comprising: a power supply having a first electrode end and a second electrode end; a first roller set having a first a roller, a second roller and a first passage between the first roller and the second roller, the first roller and the second roller have a first spacing between the first roller and the second roller An electrode end is electrically connected to the first roller set; and a second roller set has a third roller, a fourth roller and a third roller and the fourth roller a second channel, the third roller and the fourth roller have a second spacing, the second spacing is not greater than the first spacing, and the second electrode end is electrically connected to the second roller set. The metal plate moves toward the second roller set via the first roller set, and when the metal plate passes through the first passage and the second passage, a first end of the metal plate contacts the first roller and the first roller a second roller and a second end of the metal plate contacts the third roller and the fourth roller to make the first electrode end, the first Wheel sets, the metal plate, the second roller set and the second electrical terminal constituting a current loop. The inter-heating calendering apparatus according to claim 1, wherein the first roller has an accommodating space, and the accommodating space can accommodate a cooling liquid. The inter-heating calendering apparatus according to claim 1, wherein the third roller has an accommodating space, and the accommodating space can accommodate a cooling liquid. The inter-thermal calendering apparatus according to claim 2, further comprising a flow guiding member having a liquid inlet and a liquid outlet, the coolant being filled through the liquid inlet The accommodating space flows out of the accommodating space by the liquid outlet. The hot-sinking device of claim 4, wherein the flow guiding member has a guiding tube, the guiding tube is inserted in the accommodating space, and a first nozzle of the guiding tube is connected The second nozzle of the draft tube is located in the accommodating space, and the coolant flows to the accommodating space via the second nozzle. The inter-heating calendering apparatus according to claim 1, wherein the metal plate has a mass and a specific heat, the first roller has a mass and a specific heat, the mass of the first roller and the specific heat The product is less than the product of the mass of the metal plate and the specific heat. The inter-heating calendering apparatus according to claim 1, wherein the metal plate has a mass and a specific heat, the third roller has a mass and a specific heat, and the mass of the third roller and the specific heat The product is greater than the product of the mass of the metal plate and the specific heat. The inter-heating calendering apparatus according to claim 1, wherein the first roller set is disposed on a guiding machine, and the second roller set is disposed in a calender. An inter-thermal rolling device comprising a power supply, a first roller set and a second roller set, a first electrode end of the power supply being electrically connected to the first roller set, the power supply a second electrode end electrically connected to the second roller set, wherein when a metal plate passes through the first roller set and the second roller set, the first electrode end, the first roller set, The metal plate, the second roller set and the second electrode end form a current loop, and the current supplied by the power supply passes through the metal plate, so that the temperature of the metal plate rises to facilitate the second roller. The wheel set calenders the metal plate.