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Stepping-rolling-type cast ingot heating furnace

A heating furnace and rolling technology, applied in heat treatment furnaces, furnaces, furnace types, etc., can solve the problems of being stuck in the furnace, shrinking tails, and prone to tilt during the rolling process of ingots, so as to prevent quality defects and achieve uniform heating. Effect

Active Publication Date: 2015-11-25
NINGBO CHANGZHEN COPPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the defects that the existing ingot heating adopts a separate step-by-step process, which easily causes the overall temperature of the ingot to be uneven, and the extruded billet is prone to cracking, shrinkage and other quality hazards, and provides a step-and-roll method. The ingot heating furnace is controlled step by step by positioning the support table, and each step adopts a rolling method, so that the ingot is heated evenly and the subsequent extrusion quality is ensured
[0006] The invention also solves the defect that the existing ingot heating adopts a separate rolling type, and the ingot tends to be inclined and stuck in the furnace during the rolling process, which affects the normal heating of the ingot, and provides a step-and-roll type ingot heating The furnace is controlled to move forward step by step during the rolling process, and each step is completed to ensure that the ingot does not tilt

Method used

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  • Stepping-rolling-type cast ingot heating furnace
  • Stepping-rolling-type cast ingot heating furnace
  • Stepping-rolling-type cast ingot heating furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: a kind of walking and rolling type ingot heating furnace (see attached figure 1 figure 2 ), including a furnace body 1, an ingot advancing channel 11 is arranged inside the furnace body, the bottom 14 of the ingot advancing channel is horizontal, and the two ends of the ingot advancing channel are respectively a feed port 2 and a discharge port 13.

[0028] The bottom of the ingot advancing channel is provided with several raised positioning support platforms 6, and the positioning supporting platforms are divided into three rows along the ingot advancing channel, and the positioning supporting platforms of each row are separated from each other, and the positioning supporting platforms between the columns correspond to each other. All positioning supports limit the ingot to advance in a step-by-step manner in the ingot advancing channel. A concave portion 17 for the ingot to step and stay is formed between two adjacent positioning support platforms, and...

Embodiment 2

[0031] Embodiment 2: A walking and rolling ingot heating furnace, the lower end of the ejector rod is connected with a spring, so that the ejector rod is in the through hole under the action of the spring, and the inclined surface of the ejector rod is always lower than the bottom under the condition of no external force s surface.

[0032] The lower end of the ejector rod stretches out of the furnace body, and the bottom of the furnace body is equipped with a camshaft arranged horizontally. The camshaft includes two fixed cams, and the end of the camshaft is connected with a motor that drives the camshaft to rotate. The cam is in contact with the lower end of the ejector rod. During the rotation of the cam shaft driven by the motor, the ejector rod is lifted by the cam, thereby lifting the ingot and crossing the high point of the positioning support table into the next recess. Under the action of the spring, the ejector rod is lifted Pull back and wait for the next ingot. Re...

Embodiment 3

[0033] Embodiment 3: A step-and-roll rolling ingot heating furnace, the ingot lifting part is a rotary lifting mechanism, the rotary lifting mechanism includes a rotating shaft installed on the top of the positioning support platform, and a lifting shaft is fixed on the rotating shaft The arm, the lifting arm has an arc-shaped ingot lifting rolling surface adapted to the recess, the bottom of the ingot advancing channel is provided with a groove for accommodating the rotation of the lifting arm, and the rotating shaft is connected with a drive motor. Refer to Example 1 for all the other structures.

[0034] The drive motor drives the rotation shaft to rotate. During the rotation of the rotation shaft, the lifting arm lifts the ingot. With the rotation of the rotation shaft, the ingot crosses the high point of the positioning support table and enters the next concave part along the rolling guide, and rotates. The shaft continues to rotate, and the lifting arm enters the groove,...

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Abstract

The invention relates to a stepping-rolling-type cast ingot heating furnace. The defects that as for existing cast ingot heating, independent stepping type advancing is adopted, the temperature of a whole cast ingot is prone to being uneven, and potential quality hazards such as cracking and tail shrinkage of an extruded blank are prone to occurrence are overcome. A cast ingot advancing channel is formed inside a furnace body. A plurality of convex positioning supporting tables are arranged at the bottom of the cast ingot advancing channel. A concave part where stopping of stepping of the cast ingot occurs is formed between every two adjacent positioning supporting tables. Cast ingot lifting parts are arranged at the concave parts between the positioning supporting tables. Each positioning supporting table comprises an inclined rolling guide part, and each rolling guide part is located on the front side of the corresponding concave part. The cast ingot is positioned through the positioning supporting tables, and therefore the stepping advancing manner is formed; and the rolling guide parts on the positioning supporting tables are inclined, so that the cast ingot advances in a rolling manner in the stepping process, the cast ingot is evenly heated, and quality defects are avoided in the extrusion process.

Description

technical field [0001] The invention relates to the field of ingot heating, in particular to a walking and rolling type ingot heating furnace. Background technique [0002] At present, there are mainly two types of existing copper alloy ingot heating furnaces, one is a walking heating furnace, and the other is a rolling heating furnace. [0003] However, these two kinds of heating furnaces have some defects in the heating of the ingot, resulting in uneven heating temperature of the ingot. The furnace body of the walking heating furnace is horizontal, and the ingot moves forward on the surface of the furnace body in a way of translation and stepping, and the ingot cannot achieve rolling effect. If gas heating is used, the part where the ingot contacts with the walking track is prone to heat Therefore, it is suitable to use electric heating, but the cost of electric heating is high, and the heating time of the ingot is shortened, the temperature difference between the core su...

Claims

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Application Information

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IPC IPC(8): C21D9/70
Inventor 符志祥宋长洪朱莎霜罗高昇宋卡迪
Owner NINGBO CHANGZHEN COPPER CO LTD