Double-base composite nickel-chromium-molybdenum infinite chilled cast iron roller for new energy automobile profile
A technology of infinite chilled cast iron and new energy vehicles, applied in the direction of rolls, metal rolling, metal rolling, etc., can solve problems such as cracks, broken rolls, poor quality, etc., and achieve the effect of easy adjustment and increased service life
Inactive Publication Date: 2021-03-12
铜陵市大成轧辊有限责任公司
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Problems solved by technology
[0003] Aiming at the deficiencies of the prior art, the present invention provides a dual-base composite nickel-chromium-molybdenum infinite chilled cast iron roll for new energy automobile profiles, which solves the problems of cracks, roll breakage, thermal fatigue and The problem that the existing fixing device does not have a good fixing effect on the blank
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] see Figure 1-6 , in the embodiment of the present invention: a double-base composite nickel-chromium-molybdenum infinite chilled cast iron roll for new energy vehicle profiles, including a roll 100, the roll 100 is divided into an outer layer 101 and an inner layer 102, the outer layer 101 adopts alloy cast iron, and the inner layer Layer 102 adopts alloy ductile iron;
[0032] The manufacturing method of this roll 100 comprises the following steps: ...
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The invention discloses a double-base composite nickel-chromium-molybdenum infinite chilled cast iron roller for a new energy automobile profile. The double-base composite nickel-chromium-molybdenum infinite chilled cast iron roller comprises a roller body, the roller body is divided into an outer layer and an inner layer, the outer layer is made of alloy cast iron, and the inner layer is made ofalloy ductile iron. The invention relates to the technical field of rollers. According to the double-base composite nickel-chromium-molybdenum infinite chilled cast iron roller for the new energy automobile sectional material, the outer layer part and the inner layer part of the roller body are formed through the production process of combining horizontal centrifugal casting and a top pouring corefilling method for pouring the centrifugal composite cast iron roller, during forming, firstly, the outer layer is formed, then the interior of the outer layer is poured to form the inner layer, stability of connection between the outer layer and the inner layer is improved, good metallurgical compounding of the inner layer and the outer layer of the roller is achieved, outer-layer metal of a product is alloy cast iron with high hardness, and inner-layer metal is alloy ductile iron with good strength and toughness, so that the problems of cracks, roller breakage and thermal fatigue of the roller can be successfully solved.
Description
technical field [0001] The invention relates to the technical field of rolls, in particular to a double-base composite nickel-chromium-molybdenum infinite chilled cast iron roll for new energy vehicle profiles. Background technique [0002] The roll is an important part of the rolling mill in the rolling mill. It uses the pressure generated by a pair or a group of rolls to roll and roll the steel. The high-speed continuous casting and rolling production process is adopted in the rolling of new energy vehicle profiles in steel mills. The high-speed continuous casting and rolling production process has very high requirements for rolls, which must have good heat resistance and good wear resistance. and good strength. The quality of the rolls currently produced is difficult to meet the requirements of the high-speed continuous casting and rolling production process. During the rolling process, the rolls often have problems such as cracks, roll breakage, and thermal fatigue, whi...
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IPC IPC(8): B22D19/16B22D13/02B21B27/03
CPCB21B27/03B22D13/023B22D19/16
Inventor 张宇程章成希张剑
Owner 铜陵市大成轧辊有限责任公司