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Roller ring for high-speed steel leveling machine special for rolling elevator guide rails and production method

A technology of elevator guide rail and high-speed steel, which is applied in the direction of roll, metal rolling, metal rolling, etc., can solve the problems such as affecting the rolling output and surface quality of elevator guide rail, high brittleness of roll ring, and increase of production cost, etc. It is easy to be widely popularized and used, with good wear resistance and red hardness, and the effect of small grinding amount

Pending Publication Date: 2019-09-10
常州市中宇合金轧辊厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the roll ring has high brittleness and poor toughness, and it is easy to produce thermal cracks and peeling off during rolling, which seriously affects the rolling output and surface quality of elevator guide rails, and increases the production cost.

Method used

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  • Roller ring for high-speed steel leveling machine special for rolling elevator guide rails and production method

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A method for producing roll rings for high-speed steel horizontal machines dedicated to rolling elevator guide rails, comprising the following production steps: S1, determining the chemical composition: working layer 5: C: 1.55%; Si: 0.50%; Mn: 0.35%; P: 0.01%; S: 0.0:1%; Cr: 5.00%; Ni: 0.55%; Mo: 3.35%; V: 5.00%; Nb: 0.20%; W: 1.30%; ; Si: 2.25%; Mn: 0.45%; P: 0.02%; S: 0.01%; Cr: 0.10%; Ni: 0.35%; Mg: 0.045%; Mn: 0.55%; P: 0.02%; S: 0.01%; Cr: 0.05%; Ni: 0.35%; Molten steel modifier, clean molten steel, remove impurity elements H, O, P and S; smelting middle layer 4 is after spheroidization treatment and inoculation of tap water, and then add 0.0% SiFe inoculant for secondary inoculation to improve the spheroidization level; inner layer After the smelting reaches the standard, add 2kg of CaBa inoculant during spheroidization to ensure the refinement of spheroidal graphite at 3um and roundness and distribution uniformity, and improve the tensile strength; the temperat...

Embodiment 2

[0022]A method for producing roller rings for high-speed steel horizontal machines specially used for rolling elevator guide rails, including the following production steps: S1, determining the chemical composition: working layer 5: C: 1.65%; Si: 0.80%; Mn: 0.45%; P: 0.0:2%; S: 0.02%; Cr: 5.50%; Ni: 1.00%; Mo: 3.65%; V: 5.50%; Nb: 1.30%; W: 3.20%; ; Si: 2.65%; Mn: 0.60%; P: 0.0:4%; S: 0.02%; Cr: 0.13%; Ni: 0.65%; %; Mn: 0.65%; P: 0.04%; S: 0.02%; Cr: 0.12%; Ni: 0.45%; Mg: 0.065%; Basis weight rare earth molten steel modifier, clean molten steel, remove impurity elements H, O, P and S; smelting middle layer 4 is after spheroidization treatment and inoculation of tap water, add 0.08% SiFe inoculant for secondary inoculation to improve the spheroidization level ; After the inner layer smelting reaches the standard, add 2.58kg of CaBa inoculant during spheroidization to ensure the refinement of spheroidal graphite at 3.5um, roundness and uniform distribution, and improve the tens...

Embodiment 3

[0024] A method for producing roller rings for high-speed steel horizontal machines specially used for rolling elevator guide rails, comprising the following production steps: S1, determining the chemical composition: working layer 5: C: 1.75%; Si: 1.00%; Mn: 0.55%; P: 0.03%; S: 0.025%; Cr: 6.00%; Ni: 1.55%; Mo: 3.95%; V: 6.00%; Nb: 1.50%; : 2.75%; Mn: 0.8%; P: 0.05%; S: 0.03%; Cr: 0.15%; Ni: 0.85%; M: 0.045%; inner layer 3: C: 3.35%; 0.75%; P: 0.05%; S: 0.03%; Cr: 0.15%; Ni: 0.55%; agent, clean molten steel, and remove impurity elements H, O, P, and S; the smelting middle layer 4 is after spheroidization treatment and inoculation of tap water, and 0.10% SiFe inoculant is added for secondary inoculation to improve the spheroidization level; the inner layer smelting reaches the standard Finally, add 3kg of CaBa inoculant during spheroidization to ensure the refinement of spheroidal graphite at 4um, roundness and distribution uniformity, and improve tensile strength; the temper...

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Abstract

The invention relates to the technical field of roller ring production methods, in particular to a roller ring for a high-speed steel leveling machine special for rolling elevator guide rails and a production method. The roller ring is provided with a roller ring main body with ladder steps; an inner hole is formed in the middle part of the roller ring main body; and an inner layer is arranged inthe inner hole at the small-diameter end of the roller ring main body. The roller ring for the high-speed steel leveling machine special for rolling the elevator guide rails is excellent in wear resistance and red hardness, high in impact toughness and hot cracking resistance, long in operation ring, low in polishing quantity and multiple in use times, and prolongs the service life; and the production method is reasonable, convenient and simple in procedure and convenient to promote and use.

Description

technical field [0001] The invention relates to the technical field of roller ring production methods, in particular to a roller ring and a production method for a horizontal machine specially used for rolling high-speed steel for elevator guide rails. Background technique [0002] With the rapid construction of large and medium-sized cities, various high-rise buildings are rising in different places. As people go up and down stairs, the operation speed of various elevators is also constantly innovating, so the requirements for the guide rails that support the safe operation of elevators are also getting higher and higher, so higher requirements are also put forward for the production quality of elevator guide rails. At the same time, the market demand for high-quality elevator guide rails is increasingly strong. For a long time, the practical horizontal roller rings used in universal rolling mills for rolling elevator guide rails have all been made of pearlite and bainitic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02B23P15/00C22C33/04C22C33/08C21C1/10C22C37/04C22C37/08C22C37/10C22C38/02C22C38/04C22C38/36C22C38/44C22C38/46C22C38/48C21D1/667C21D1/18C21D5/00C21D6/00C21D9/40
CPCB21B27/02B23P15/00C21C1/105C21D1/18C21D1/667C21D5/00C21D6/004C21D6/005C21D6/008C21D9/40C22C33/04C22C33/08C22C37/04C22C37/08C22C37/10C22C38/002C22C38/02C22C38/04C22C38/36C22C38/44C22C38/46C22C38/48
Inventor 许峰许阿平蒋志芳
Owner 常州市中宇合金轧辊厂
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