Forged steel roll journal indefinite chill high nickel-chromium-molybdenum composite roll process and equipment

An infinitely chilled, composite roll technology, applied in the field of metal pressure processing, can solve the problems of rapid decrease in hardness and wear resistance, poor thermal fatigue resistance, short service life of centrifugal bainite rolls, etc., and achieve good red hardness and High temperature wear resistance, good mechanical properties, and the effect of overcoming tissue segregation

CN105562647AActive Publication Date: 2016-05-11丹阳恒庆复合材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-05-11

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Abstract

The invention discloses a forged steel roll journal indefinite chill high nickel-chromium-molybdenum composite roll process and equipment. A material comprises the following components in percentages by mass: 3.1-3.5% of C, 0.70-1.20% of Si, 0.40-1.20% of Mn, 3.0-4.8% of Ni, 1.0-2.0% of Cr, 0.40-1.1% of Mo, 0.1-2% of W, 0.5-1.0% of Cu, less than or equal to 0.05% of P, less than or equal to 0.03% of S, 1-3% of Sb, 0.02-0.18% of N, 0.1-0.3% of Ce, and the balance Fe and inevitable trace elements; rare earth Ce and silicon iron are subjected to compound inoculation, Sb and N are added to carry out grain refinement, mechanical properties of a roll are improved, the strength of the roll is improved by a forced steel roll journal, a mandrel is subjected to internal integral heating fusion casting by an induction heater, forming is implemented by a water-cooled crystallizer, an interface of a composite layer can be controlled dynamically, the process is simple, the cost is low, composition segregation is avoided, and the service life of the roll is long.
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Description

technical field

[0001] The invention belongs to the technical field of metal pressure processing, and in particular relates to a process and equipment for a forged steel roll neck infinitely chilled high-nickel-chromium-molybdenum composite roll, which is suitable for manufacturing composite rolls in the steel rolling industry. Background technique

[0002] The roll is known as the "mother of steel". It is a tool for plastically deforming metal materials in the rolling production of steel, aluminum, copper and other metals. Rolling is an indispensable key component and the most important bulk consumption component, and its consumption cost is about 5% to 15% of the steel rolling production cost. If factors such as production downtime, reduced production and increased equipment maintenance due to roll consumption are considered, the proportion of production costs will be even higher.

[0003] Rolling mill is an important equipment in metal pressure processing and production,...

Examples

Embodiment 1

[0065] Embodiment 1: in figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 Among them, the equipment has a gantry-type regional directional solidification lifting device 16, a lifting platform 17 is installed on the gantry-type regional directional solidification lifting device 6, an electromagnetic induction heater 8 is installed on the lifting platform 17, and the lifting motor 14 rotates and lifts The screw 15 or hydraulic equipment drives the lifting table 17 to move up and down at the set speed, and the electromagnetic induction power control cabinet 19 is installed on the side of the directional solidification lifting equipment 16 in the gantry type area. The two output ends of the electromagnetic induction power control cabinet 19 are cooled by water. The cable 20 is connected to the two ends of the electromagnetic induction heater 8, and there is a base bracket at the bottom of the directional solidification lifting device 16 in the gantry type are...

Embodiment 2

[0084] Example 2: In figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 Among them, the equipment has a gantry-type regional directional solidification lifting device 16, a lifting platform 17 is installed on the gantry-type regional directional solidification lifting device 6, an electromagnetic induction heater 8 is installed on the lifting platform 17, and the lifting motor 14 rotates and lifts The screw 15 or hydraulic equipment drives the lifting table 17 to move up and down at the set speed, and the electromagnetic induction power control cabinet 19 is installed on the side of the directional solidification lifting equipment 16 in the gantry type area. The two output ends of the electromagnetic induction power control cabinet 19 are cooled by water. The cable 20 is connected to the two ends of the electromagnetic induction heater 8, and there is a base bracket at the bottom of the directional solidification lifting device 16 in the gantry type area, ...

Embodiment 3

[0102] Example 3: In figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 Among them, the equipment has a gantry-type regional directional solidification lifting device 16, a lifting platform 17 is installed on the gantry-type regional directional solidification lifting device 6, an electromagnetic induction heater 8 is installed on the lifting platform 17, and the lifting motor 14 rotates and lifts The screw 15 or hydraulic equipment drives the lifting table 17 to move up and down at the set speed, and the electromagnetic induction power control cabinet 19 is installed on the side of the directional solidification lifting equipment 16 in the gantry type area. The two output ends of the electromagnetic induction power control cabinet 19 are cooled by water. The cable 20 is connected to the two ends of the electromagnetic induction heater 8, and there is a base bracket at the bottom of the directional solidification lifting device 16 in the gantry type area, and a support...