CN208449507U - A kind of liner plate of anticorrosive wear-resistant - Google Patents

Abstract

A kind of lining material of anticorrosive wear-resistant, the lining material of anticorrosive wear-resistant is by high chrome, potassium steel, broken machine bottom board, be milled machine bottom board composition, high chrome and potassium steel manufacture are at cone table, casting is in the soleplate, crusher is cast in broken machine bottom board using the cone table of potassium steel, flour mill casts in the cone table of potassium steel or high chrome in milling machine bottom board, the liner plate of anticorrosive wear-resistant is by material according to the property of purposes alloying element, price, the difficulty or ease of manufacturing method, service life uses different schemes, to achieve the purpose that make the best use of everything, i.e. wet-milling uses anti-corrosion material, crusher is combined using the good tungsten manganese alloy of toughness bottom plate and red hardness, soft material and hard material are combined together, avoid the problem that jaw crusher lining board polishes rear crushing efficiency decline.

Description

A kind of liner plate of anticorrosive wear-resistant

Technical field

The invention belongs to metal materials, more particularly, to a kind of crusher or the liner plate of ore flour mill.

Background technique

Currently, the liner plate that ball mill, Raymond machine use is based on steel plate either potassium steel, ball mill is that material is broken The key equipment crushed again later, it is widely used in cement, silicate product, New Building Materials, refractory material, change The production industries such as fertilizer, glass ceramics carry out dry type or wet type grinding to various ores and other grindability materials, and ball mill is by giving The major parts such as material portion, discharging portion, rotating part, speed reducer, small transmission gear, motor, automatically controlled composition, hollow shaft use cast steel Part, liner replaceable, revolution gear wheel use casting gear hobbing process, stud with wear-resistant liner in cylinder, have good wearability.

Wear-resistant liner refers to that wear-resisting steel plate is process respectively by production technologies such as cutting, roll bending deformation, punching and welding

Kind wear-resistant liner is wear-resisting such as conveyer liner plate, feeder bottom plate/cyclone separator back taper and liner plate, abrasion-resistant blade Service life improves 10 times or more than general steel plate, and China will consume about 200,000 tons of lining board of grinder every year, lining board of crusher about 200,000 Ton is worth nearly 2,000,000,000 yuan, therefore, reduces lining material production cost, extends the service life of lining material with particularly significant Economic significance, a kind of preparation method of wear-resistant liner is disclosed in patent 201310727251, the preparation method comprises the following steps: 1, casting model powder The preparation of type；2, fusion process carries out fusion smelting using smelting furnace, so that molten metal is by following component and its quality percentage Than composition: C: 3.0~3.2%, Si: 0.3~0.4%, Mn: 0.5~0.7%, Cr: 2~3%, Mo: 2.8~3.1%, Cu: 0.8~1.2%, V: 8~9%, B: 0.002~0.003%, Sn: 0.04~ Te: 0.02~0.03%, Ce: 0.01~0.02%, Zr: 0.03~0.04%, Y: 0.004 0.05% ,~ 0.005%, P: 0.01~0.02%, S: 0.001~0.002%, surplus is Fe and inevitable impurity, in which: Cu/ Sn=20~24%；3, casting process；4, it is heat-treated, in which: wind quenching processe carries out in vibration platform, the technical solution In component still need to be further improved to improve its service life, and alloy content is higher, increases cost, the reality of wear-resistant material Farther out from eutectic point, liquid-solid two-phase region is wide for border ingredient, and mushy freezing feature is easily presented, easily blocks Feeding channel, is easy to produce The phenomenon that raw shrinkage porosite, shrinkage cavity, the technical solution have much room for improvement, the patent declared by Anshan Iron and Steel Group of mining company 2007101590010, invention and created name " a kind of crusher duplex metal abrasion-proof backing block and its manufacturing method ", by checking that it is double Metal component is actually combined using high chrome and common iron, in terms of technical principle, high chrome excellent wear-resisting property, but It is, it is difficult to high impact forces are resisted, so, it is not very properly, in addition, its 13 ~ 22% chromium content is also difficult as lining board of crusher Say its economy declared, because of the high chrome of content thus and uneconomical, the occasion of high impact forces is more suitable using potassium steel, high The lower milling effect of temperature is more preferable, and still, high temperature equally proposes challenge to the heat-resisting quantity of lining material.

Utility model content

The origin of technical problem: the brittle property of impact resistance and object is inversely proportional under normal conditions, but to most of ores It is broken, for milling equipment, often synchronize and material needed to have excellent an impact resistance and wear-resisting property, wear-resisting property with it is crisp Hardness is directly proportional, and single metal material, which is difficult to synchronize, reaches both performances.

Technical solution: a kind of liner plate of anticorrosive wear-resistant, the liner plate of anticorrosive wear-resistant are divided into crusher dry grinding liner plate, milling Machine is dry grinded liner plate and Used in Wet-grinding Machine Lining, and Used in Wet-grinding Machine Lining is used for flour mill, and the liner plate of anticorrosive wear-resistant is by high chrome, potassium steel, broken Machine bottom board, milling machine bottom board composition, it is characterized in that:

The high chrome is made of following element: C:1.2 ~ 2.4%, V:1.0 ~ 2.0%, Si:0.6 ~ 0.8%, W:0.5 ~ 0.8%, Mn:0.6 ~ 0.8%, Cr:6.0 ~ 9.0%, Mo:0.05 ~ 0.08%, Ni:0.6 ~ 0.7%, P :≤0.04%, S :≤0.04%, Wherein, percentage is mass percent；

The potassium steel is made of following element: C:0.90~1.50%, Mn:10.0~15.0%, Si:0.30~ 1.0%, S :≤0.05 %, P :≤0.10%, wherein percentage is mass percent；

The broken machine bottom board is made of following element: C:0.80~1.20%, Mn:0.9~1.4%, Si:0.60~ 1.0%, Cr:3.0 ~ 5.0% S :≤0.06 %, P :≤0.06% Re:0.02%, Al:3 ~ 6%, wherein percentage is quality percentage Than；

The milling machine bottom board is made of following element: C:1.2~2.4%, Mn:0.9~1.4%, Si:0.60~ 1.0%, Cr:3.0 ~ 5.0%, W:0.5 ~ 0.8% S :≤0.06 %, P :≤0.06%, Re:0.02%, wherein percentage is quality Percentage；

Remaining element is iron and impurity,

The crusher dry grinding liner plate is made of the cone table and broken machine bottom board of potassium steel, the cone of the cone table Degree is 3 to 5 degree, and the major part of cone table is cast on together using broken machine bottom board, and the microcephaly of cone table protrudes bottom plate front surface 0.2 The major part distance of ~ 0.5cm, cone table are crushed 0.5 ~ 2cm of the machine bottom board back side, and the front surface refers to liner plate working face；

The flour mill dry grinding liner plate is made of the cone table and milling machine bottom board of potassium steel, the cone of the cone table Degree is 3 to 5 degree, and the major part of cone table is cast on together using milling machine bottom board, the microcephaly of cone table and the milling positive table of machine bottom board Face is same plane, and for the major part of cone table apart from milling 0.5 ~ 2cm of the machine bottom board back side, the front surface refers to that liner plate works Face, standard component flour mill dry grinding liner plate carry out the processing that drills, first drill, after be heat-treated, non-standard component flour mill Dry grinding liner plate heat treatment is only limited to frustum body region, and marks drilling index line, and subsequent technique is facilitated to drill；

The Used in Wet-grinding Machine Lining is divided to two kinds, and one is the interior cone table by potassium steel, the outer cone tables and milling of high chrome Machine bottom board composition, inside and outside cone table form cladding relationship, i.e., envelope the interior frustum of potassium steel by the outer cone table of high chrome Body prevents potassium steel from getting rusty, and the taper of cone table is 3 to 5 degree, and the major part of cone table is cast on together using milling machine bottom board, The microcephaly of cone table and milling machine bottom board front surface are same plane, the major part distance milling machine bottom board back side 0.5 of cone table ~ 2cm, the front surface refer to liner plate working face, and standard component Used in Wet-grinding Machine Lining carries out drilling processing, first drills, rear to carry out Heat treatment, the heat treatment of non-standard component Used in Wet-grinding Machine Lining is only limited to frustum body region, and marks drilling index line, facilitates subsequent technique Drilling；

Another kind is made of the cone table and milling machine bottom board of high chrome, and the taper of cone table is 3 to 5 degree, cone table Major part be cast on together using milling machine bottom board, the microcephaly of cone table and milling machine bottom board front surface are same plane, frustum Major part distance milling 0.5 ~ 2cm of the machine bottom board back side of body, the front surface refer to liner plate working face, and standard component Used in Wet-grinding Machine Lining needs Carry out drilling processing, first drill, after be heat-treated, the heat treatment of non-standard component Used in Wet-grinding Machine Lining is only limited to frustum body region, And drilling index line is marked, subsequent technique is facilitated to drill,

Smelting the smelting furnace used is alkaline crucible,

The cone table of high chrome and potassium steel is processed in advance, with the electric induction furnace melting high chrome and Gao Meng of alkaline crucible Steel is poured at 1360~1400 DEG C, and potassium steel is then formed cone table, frustum using sand mold or casting method Body taper is 3 to 5 degree, and high chrome forms cone table or cone table, i.e. high chrome shape is collectively formed with the cone table of potassium steel Interior cone table is formed at outer cone table, potassium steel；

It by the cone table of above-mentioned high chrome and potassium steel after Shot Blasting, is fixed on board-like skeleton, then is placed in lining In plate casting mold cavity, 200~250 DEG C are preheating to, mould assembling after preheating pours into bottom plate plate body melt, and pouring temperature is 1500 ~ 1540℃；The cone table of high chrome and potassium steel and liner plate bottom body is set to reach metallurgical bonding；

Heat treatment process:

The wear-resistant liner workpiece cleaned out is fitted into heat-treatment furnace, technology point: being warming up to 300~400 in 1 hour DEG C, then 50~80 DEG C of speed is warming up to 1000~1100 DEG C on an hourly basis, keeps the temperature 3~4 hours, makes Gao Ge The abundant austenitizing of the cone table of steel and potassium steel carries out water-tenacity treatment in water of then being quenched；During water-tenacity treatment Since cone table is in the inside of bottom plate, the cooling velocity obtained is similar to its air-cooled cooling velocity, to reach pair The effect of cone table air-blast quenching processing, in the heat treatment step, standard component have hole liner plate using first drilling, and are heat-treated afterwards, this Sample strengthens the hardness in hole, moreover, the hardness of the bore edges of heat treatment is very high, in this way, aperture is not easy to become larger, to extend Life of product；

Bore area delimited, the region of no high chrome and potassium steel is delineated as bore area by nonstandard liner plate, facilitates subsequent add Work.

The utility model has the advantages that being divided into dry grinding and wet-milling, crusher and flour mill classification to lining material, thus for respectively different Operating condition use suitable material, reach anticorrosion, wear-resisting purpose, while considering material cost, manufacturing process and production Product operation instruction, chromium and low straight-chromiun stainless steel substitution high chromium-stainless steel reduce cost in utilization, and potassium steel and toughness bottom plate are combined Together, the impact resistance of potassium steel and the toughness of bottom plate are taken into account, lining board of crusher protrudes cone table, using hard soft material knot Conjunction method is conducive to improve the utilization rate and crushing efficiency of material.

Detailed description of the invention

Attached drawing 1 is the high chrome elemental constituent table that embodiment 1 arrives embodiment 4, and constituent content is calculated by percentage to the quality；

Attached drawing 2 is the potassium steel elemental constituent table that embodiment 1 arrives embodiment 4, and constituent content is calculated by percentage to the quality；

Attached drawing 3 is the broken machine bottom board elemental constituent table that embodiment 1 arrives embodiment 4, and constituent content is by percentage to the quality It calculates；

Attached drawing 4 is the milling machine bottom board elemental constituent table that embodiment 1 arrives embodiment 4, and constituent content is by percentage to the quality It calculates；

Attached drawing 5 is anticorrosive wear-resistant lining plate structure main view；

Attached drawing 6 is anticorrosive wear-resistant lining plate structure top view,

Wherein, 1 is high chrome and potassium steel cone table, and 2 be drilling index line, and 3 be bottom plate, and 11 be the frustum of high chrome Body, 12 be the cone table of potassium steel, and H1 is the height of high chrome and potassium steel, and H2 is that bottom plate does not have high chrome and potassium steel region Height.

Specific embodiment

Applicant is explained the construction and embodiment of the liner plate of anticorrosive wear-resistant in conjunction with attached drawing,

In the alloy, it adds wolfram element and a small amount of rhenium element will increase the red hardness of product, and flour mill is to product Red hardness has very high requirement, therefore is added to wolfram element and a small amount of rhenium element in milling machine bottom board；Add aluminium element meeting Increase the plasticity of product, so being added to the plasticity that aluminium element increases product in broken machine bottom board, prevents liner plate from rupturing, carbon Content also has an impact to product hardness and brittleness.

What is respectively indicated from attached drawing 1 to attached drawing 4 is the element of high chrome, potassium steel, broken machine bottom board and the machine bottom board that is milled Mass percentage content, it should be pointed out that wherein chromium content is 13 ~ 22% to general stainless steel, and the chromium content of attached drawing 1 is not There is the chromium content standard for reaching stainless steel, this is because its service life is not very long in itself, by chromium for lining material Content raising will increase product cost, and still, liner plate requires the antirust of stainless steel and standard is again without so high, and increase chromium contains Amount causes waste, therefore, using the straight-chromiun stainless steel of moderate content, to achieve the purpose that make the best use of everything.

In figure 6, high chrome is to be coated with potassium steel, in this way, on the one hand can prevent product from getting rusty, guarantees product Appearance will also result in the reduction of potassium steel performance in addition, getting rusty, it should be noted that potassium steel and high chrome are convex in attached drawing 6 Out in substrate, this is to facilitate to introduce its principle, and actually high chrome and potassium steel are to inlay in the soleplate, wear-resistant liner It is divided to two kinds, a kind of entirety is plate, i.e. the small head surface of cone table and backplate surface is in same plane, and one is cone table protrusions Backplate surface 0.2 arrives 0.5cm, since the hardness of high chrome and potassium steel is much larger than the hardness of bottom plate, froms the perspective of from probability angle, collides In the identical situation of number, the baseplate zone degree of wear is greater than the abrasion of high chrome and potassium steel region, in this way, high chrome and height Manganese steel region will be with using the increase of time to protrude in backing surface, at this point, the collision time in high chrome and potassium steel region Number can be more than the collision frequency of baseplate zone, thus accelerate the abrasion of high chrome and potassium steel region, it is opposite to have delayed base section The abrasion in domain, its height of baseplate zone are divided into two parts, that is, have the region of high chrome and potassium steel, height H2, without Gao Ge Steel and potassium steel region, height H2+H1, and the height of high chrome and potassium steel is H1, when high chrome and potassium steel are ground After having damaged, although being faster than the abrasion of high chrome and potassium steel without the regions wear speed of high chrome and potassium steel, due to There are H2, after high chrome and potassium steel have been worn, the region H2, which is also worn, to be finished, in addition, in terms of broken or milling efficiency, high chrome After potassium steel protrusion, ore is collided on cone table, and the pressure that ore is subject to is greater than flat liner plate, in this way, ore It is more easily crushed, especially crusher, its liner plate of the jaw crusher that can be improved production efficiency, and use now is also not Plate, but frid, the disadvantage using a kind of jaw crusher lining board maximum of material are exactly that protrusion branch polishes gradually, are made It is lower and lower at crushing efficiency, after polishing completely, it can not be used without slotting, therefore, and for crusher, potassium steel 0.5cm is arrived with the cone table protrusion plate upper surface 0.2 of high chrome, in this way, guaranteeing the working efficiency having had when product work.

Cone table equidistantly distributes, and described equidistantly distributing refers to cone table in machine and transverse direction, between cone table Distance be equal.

And in the dry grinding of product, the hardness of product is the key that influence milling efficiency and speed, and in wet-milling, anti-corrosion is It is the factor for needing to measure,

3) melting and casting

With the electric induction furnace melting wear-resistant block of alkaline crucible, with clay-bonded sand, metal mold does not set riser；1360~1400 DEG C Casting, it is spare after blast cleaning；

Body casting in liner plate bottom requires, sodium silicate molding, and molten steel also uses alkaline crucible furnace melting, and bottom plate pouring temperature is 1500 ~ 1540 DEG C or so,

The casting of liner plate bottom body is fixed on board-like skeleton, then be placed in liner plate by above-mentioned cone table after Shot Blasting In plate body casting mold cavity, 200 DEG C or so are preheating to, mould assembling after preheating pours into bottom plate melt, reaches cone table with liner plate bottom body To metallurgical bonding；

Heat treatment process:

Liner plate workpiece by cleaning out or by drilling is fitted into heat-treatment furnace, technology point: being warming up within 1 hour 300~400 DEG C, then 50~80 DEG C of speed is warming up to 1000~1100 DEG C on an hourly basis, makes potassium steel and Gao Ge Steel sufficiently carries out austenitizing, keeps the temperature 3~4 hours, carries out water-tenacity treatment in water of then being quenched, reaches cone table Air-blast quenching effect, Lip river history hardness reach HRC58~70, improve liner plate service life and crushing efficiency, reduce spare parts consumption.

Claims (1)

1. a kind of liner plate of anticorrosive wear-resistant, the liner plate of anticorrosive wear-resistant be divided into crusher dry grinding liner plate, flour mill dry grinding liner plate, Used in Wet-grinding Machine Lining, Used in Wet-grinding Machine Lining are used for flour mill, it is characterized in that:

The crusher dry grinding liner plate is made of the cone table and broken machine bottom board of potassium steel, and the taper of the cone table is 3 to 5 degree, the major part of cone table are cast on together using broken machine bottom board, the microcephaly of cone table protrude bottom plate front surface 0.2 ~ The major part distance of 0.5cm, cone table are crushed 0.5 ~ 2cm of the machine bottom board back side；

The flour mill dry grinding liner plate is made of the cone table and milling machine bottom board of potassium steel, and the taper of the cone table is The major part of 3 to 5 degree, cone table is cast on together using milling machine bottom board, and the microcephaly of cone table and milling machine bottom board front surface are Same plane, major part distance milling 0.5 ~ 2cm of the machine bottom board back side of cone table,

The Used in Wet-grinding Machine Lining is divided to two kinds, and one is by the interior cone table of potassium steel, the outer cone table of high chrome and flour mill bottom Board group is inside and outside cone table forms cladding relationship, i.e., envelopes the interior cone table of potassium steel by the outer cone table of high chrome, prevents Only potassium steel gets rusty, and the taper of cone table is 3 to 5 degree, and the major part of cone table is cast on together using milling machine bottom board, cone table Microcephaly and milling machine bottom board front surface be same plane, cone table major part distance milling 0.5 ~ 2cm of the machine bottom board back side, it is nonstandard Quasi- part Used in Wet-grinding Machine Lining mark drilling index line；

Another Used in Wet-grinding Machine Lining is made of the cone table and milling machine bottom board of high chrome, and the taper of cone table is 3 to 5 The major part of degree, cone table is cast on together using milling machine bottom board, and the microcephaly of cone table and milling machine bottom board front surface are same Plane, major part distance milling 0.5 ~ 2cm of the machine bottom board back side of cone table, non-standard component Used in Wet-grinding Machine Lining mark drilling index line；

The front surface refers to liner plate working face.