CN101914750B - Method for surfacepeening multicomponent composite ceramic membrane of non-ferrous metal hot-working roll - Google Patents
Method for surfacepeening multicomponent composite ceramic membrane of non-ferrous metal hot-working roll Download PDFInfo
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- CN101914750B CN101914750B CN2010102702392A CN201010270239A CN101914750B CN 101914750 B CN101914750 B CN 101914750B CN 2010102702392 A CN2010102702392 A CN 2010102702392A CN 201010270239 A CN201010270239 A CN 201010270239A CN 101914750 B CN101914750 B CN 101914750B
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Abstract
The invention discloses a method for surfacepeening a multicomponent composite ceramic membrane of a non-ferrous metal hot-working roll. The method can improve the service life of the roll by 1 to 5 times. The method comprises the following steps of: performing liquid phase aluminum-magnesium-manganese-silicon multicomponent cementation and polishing treatment on the roll; then performing nitridation and polishing treatment; and finally performing oxidation treatment on the roll to form a compact nitrogen-oxygen iron-manganese-aluminum-magnesium-silicon multicomponent composite ceramic tissue layer which has good mechanical properties and physical and chemical properties and has the thickness of 20 to 35 mu m on the surface of the roll, wherein the nitrogen-oxygen iron-manganese-aluminum-magnesium-silicon multicomponent composite ceramic tissue layer is formed by compositing square and hexagonal system ceramic phases and is fixed on the surface of the roll to obviously improve the corrosion resistance and the thermal fatigue resistance under the stress state of the non-ferrous metal hot-working roll. The method can take thermal refining as adopted preheat treatment technology before performing the cementation on the roller.
Description
Technical field
The present invention relates to a kind of method for surface hardening, especially relate to a kind of polynary composite ceramic film method for surface hardening of non-ferrous metal hot-work roll.
Background technology
What according to statistics, traditional non-ferrous metal roll for hot-rolling had just lost efficacy behind the metallic rod material of about 600 tons of continuous rollings; The work-ing life of roll, weak point seriously restricted the production efficiency of equipment for continuously rolling, and made production cost of products high.
In order to solve short problem in non-ferrous metal roll for hot-rolling work-ing life, the prior art measure is: 1, conversion materials more, make roll by using different hot-work die steels; 2, improve roll pass flute surfaces hardness, the thermal treatment process of the roll for hot-rolling of traditional non-ferrous metal is generally modifier treatment technology; Recent two decades comes, and the improvement direction of this technical field mainly has been placed on and how improves on the roll pass flute surfaces hardness technical measures.For example, hard chrome plating, carbonitriding, QPQ processing etc.; But above-mentioned technological method is not to there being unusual effect in work-ing life of the roll for hot-rolling that improves non-ferrous metal.Reason is that people are not enough for the failure mechanism understanding of the roll for hot-rolling of non-ferrous metal.Chinese patent 200410051107.5 discloses a kind of surface treatment method and manufacture method of alloy roll, make roller surface form nitrogenize and the oxidative tissue layer of thickness 15 μ m-35 μ m, this technology has been comprised in the middle of the above-mentioned technological overview, and the raising effect in this technology breaker roll work-ing life and not obvious.
After deliberation, in non-ferrous metal hot continuous rolling moulding (hot extrusion processing and cold working the are as the same) process, because roll is a ferrous materials, different with the electropotential of nonferrous materials, so the process systems that roll, non-ferrous metal stocking and rolling lubrication liquid (water-based emulsion) are formed has also just become a chemical primary cell system.When stocking was Cu alloy material, roll was " sacrificial anode "; Roll is standing galvanic corrosion and the stress under the etching condition (thermal stresses and the rolling stress) fatigue effect under the rolling stress condition.So traditional roll its pass flute surfaces in the short working hour " the be full of cracks decorative pattern " of fatigure failure feature just occurred and has scrapped.
When stocking was aluminium alloy, magnesium alloy, stocking was " sacrificial anode ", and the reaction of stocking and emulsion produces hydrogen, and roll is standing the hydrogen-type corrosion under the rolling stress condition, and the crystal boundary of roll pass flute surfaces layer weakens because of the infiltration of hydrogen atom.Roll is standing hydrogen-type corrosion and the stress under the hydrogen-type corrosion condition (thermal stresses and the rolling stress) fatigue effect under the rolling stress condition.So traditional roll its pass flute surfaces in the short working hour " the be full of cracks decorative pattern " of fatigure failure feature just occurred and has scrapped.
At the failure mechanism of the roll for hot-rolling of non-ferrous metal, use the polynary composite ceramic film method for surface hardening of non-ferrous metal hot-work roll of the present invention, can realize that roll pass flute surfaces layer material grain-boundary strengthening under the hot-rolled condition is with stable; Eliminate galvanic cell and form approach; Improve roll pass surface corrosion resistance nature and wear resistance; Improve the top layer anti-fatigue performance of roll, can significantly improve the work-ing life of roll and reduce production costs, roll can improve 1 to 5 times work-ing life.
Summary of the invention
The technical problem that the present invention solves provides a kind of polynary composite ceramic film method for surface hardening that improves the non-ferrous metal hot-work roll in roll work-ing life.
The technical solution adopted for the present invention to solve the technical problems is: the polynary composite ceramic film method for surface hardening of non-ferrous metal hot-work roll comprises following processing method step:
A, described roll is carried out liquid phase Al-Mg-Mn silicon diffusion ooze altogether and handle and ooze the back polished finish, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 500-600 ℃, treatment time is 100-125s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 60-70%Al, 20-30%Mg, 0.5-1.5%Mn, 8.5-9.5%Si forms;
B, the roll that steps A is obtained carry out the nitriding processing, and making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, and the temperature condition that described nitriding is handled is 500-600 ℃, and the treatment time is 120-300min;
C, the roll that step B is obtained carry out polished finish, remove the tectorium on surface;
D, the roll that step C is obtained carry out oxide treatment, the temperature condition of described oxide treatment is 350-500 ℃, treatment time is 10-30min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Further be: before described roll is oozed processing altogether, earlier above-mentioned roll is carried out conditioning heat treatment technology in the steps A, described conditioning heat treatment technology is modifier treatment.
The invention has the beneficial effects as follows: the roll pass flute surfaces layer material grain-boundary strengthening under the realization hot-rolled condition is with stable; Eliminate galvanic cell and form approach; Improve roll pass surface corrosion resistance nature and wear resistance; Improve the top layer anti-fatigue performance of roll; Can significantly improve the work-ing life of roll and reduce production costs, roll can improve 1 to 5 times work-ing life.
Embodiment
The present invention is further described below by embodiment, below listed embodiment be indefiniteness embodiment of the present invention, can adjust in the scope that allows about composition proportion and processing parameter, this adjustment does not have substantial effect to the present invention.
Embodiment one:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 550 ℃, treatment time is 120s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 70%Al, 20%Mg, 1.5%Mn, 8.5%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, it is polynary composite ceramic film, the temperature condition that described nitriding is handled is 570 ℃, treatment time is 180min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 420 ℃, treatment time is 25min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.Oxygen in the polynary composite ceramics of the above-mentioned nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is from the Sauerstoffatom of inevitably introducing in each treatment step, and iron is from the used material of roll itself.
Embodiment two:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 550 ℃, treatment time is 120s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 70%Al, 20%Mg, 1%Mn, 9%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 570 ℃, treatment time is 180min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 420 ℃, treatment time is 25min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Embodiment three:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 560 ℃, treatment time is 110s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 65%Al, 25%Mg, 1%Mn, 9%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 560 ℃, treatment time is 180min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 420 ℃, treatment time is 25min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Embodiment four:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 560 ℃, treatment time is 110s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 65%Al, 25%Mg, 0.5%Mn, 9.5%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 560 ℃, treatment time is 180min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 430 ℃, treatment time is 25min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Embodiment five:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 570 ℃, treatment time is 105s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 65%Al, 25%Mg, 1.5%Mn, 8.5%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 550 ℃, treatment time is 150min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 450 ℃, treatment time is 20min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Embodiment six:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 570 ℃, treatment time is 105s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 65%Al, 26%Mg, 1%Mn, 8%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 550 ℃, treatment time is 150min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 420 ℃, treatment time is 25min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Embodiment seven:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 580 ℃, treatment time is 100s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 70%Al, 20%Mg, 1.5%Mn, 8.5%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 550 ℃, treatment time is 150min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 420 ℃, treatment time is 25min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Embodiment eight:
Elder generation's breaker roll carries out modifier treatment; Breaker roll carries out liquid phase Al-Mg-Mn silicon diffusion and oozes altogether and handle and ooze the back polished finish again, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 540 ℃, treatment time is 125s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 60%Al, 30%Mg, 1.5%Mn, 8.5%Si forms; Breaker roll carries out the nitriding processing then, making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, the temperature condition that described nitriding is handled is 560 ℃, treatment time is 240min, then breaker roll carries out polished finish, removes the tectorium of roller surface; Last breaker roll carries out oxide treatment, the temperature condition of described oxide treatment is 440 ℃, treatment time is 20min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
Claims (2)
1. the polynary composite ceramic film method for surface hardening of non-ferrous metal hot-work roll is characterized in that comprising following processing method step:
A, described roll is carried out liquid phase Al-Mg-Mn silicon diffusion ooze altogether and handle and ooze the back polished finish, alloying layer thickness after polished finish is controlled at 10 μ m-25 μ m, the described temperature condition that oozes processing altogether is 500-600 ℃, treatment time is 100-125s, wherein said liquid phase Al-Mg-Mn silicon is by weight percentage by 60-70%Al, 20-30%Mg, 0.5-1.5%Mn, 8.5-9.5%Si forms;
B, the roll that steps A is obtained carry out the nitriding processing, and making the surface formation thickness of roll is the polynary composite ceramics of the nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer of 15 μ m-30 μ m, and the temperature condition that described nitriding is handled is 500-600 ℃, and the treatment time is 120-300min;
C, the roll that step B is obtained carry out polished finish, remove the tectorium on surface;
D, the roll that step C is obtained carry out oxide treatment, the temperature condition of described oxide treatment is 350-500 ℃, treatment time is 10-30min, making the surface formation thickness of roll is the polynary composite ceramics of 20 μ m-35 μ m nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer, and wherein the polynary composite ceramics of nitrogen oxygen ferrimanganic aluminium, magnesium, silicon organized layer is composited by square and hexagonal system ceramic phase.
2. the polynary composite ceramic film method for surface hardening of non-ferrous metal hot-work roll as claimed in claim 1, it is characterized in that: in the steps A before described roll is oozed processing altogether, earlier above-mentioned roll is carried out conditioning heat treatment technology, described conditioning heat treatment technology is modifier treatment.
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Citations (3)
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CN1034588A (en) * | 1988-01-30 | 1989-08-09 | 山东工业大学 | Composite bed soft steel, stainless steel aluminising health care pot and manufacturing process |
CN101333640A (en) * | 2007-06-29 | 2008-12-31 | 福田金属箔粉工业株式会社 | Powder for infiltration |
WO2009054950A1 (en) * | 2007-10-24 | 2009-04-30 | Los Alamos National Security, Llc | Universal nucleation layer/diffusion barrier for ion beam assisted deposition |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1034588A (en) * | 1988-01-30 | 1989-08-09 | 山东工业大学 | Composite bed soft steel, stainless steel aluminising health care pot and manufacturing process |
CN101333640A (en) * | 2007-06-29 | 2008-12-31 | 福田金属箔粉工业株式会社 | Powder for infiltration |
WO2009054950A1 (en) * | 2007-10-24 | 2009-04-30 | Los Alamos National Security, Llc | Universal nucleation layer/diffusion barrier for ion beam assisted deposition |
Non-Patent Citations (1)
Title |
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赖人铭,熊计,吴悦梅,张向宇,赵国忠.含Mn弥散颗粒在Al-Mg-Si-Mn铝合金均匀化过程中的析出分布研究.《材料热处理技术》.2008,第37卷(第18期),21-24. * |
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