CN108486489A - A kind of antifriction metal (AFM) composite bucket tooth and its production technology - Google Patents
A kind of antifriction metal (AFM) composite bucket tooth and its production technology Download PDFInfo
- Publication number
- CN108486489A CN108486489A CN201810362237.2A CN201810362237A CN108486489A CN 108486489 A CN108486489 A CN 108486489A CN 201810362237 A CN201810362237 A CN 201810362237A CN 108486489 A CN108486489 A CN 108486489A
- Authority
- CN
- China
- Prior art keywords
- bucket tooth
- afm
- antifriction metal
- temperature
- production technology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/285—Teeth characterised by the material used
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention provides a kind of antifriction metal (AFM) composite bucket tooth and its production technology, is related to wear-resistant bucket tooth field, above-mentioned antifriction metal (AFM) composite bucket tooth, and by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：C：0.8 1.5%, Mn：0.8 1.0%, Ti：0.3 0.4%, Si：0.3 0.4%, Ca：0.5 1.0%, Cr：0.5 1.0%, Ni:0.4 0.9%, V：0.5 0.8%, S：0.2 0.5%, B：Inevitable impurity in 0.1 0.5%, surplus Fe and other production processes, production technology include the following steps：Component materials are added in stove, ultrasonic activation stirring is opened, until liquid steel temperature is come out of the stove when being 1,600 1650 DEG C, vacuum degree, pouring temperature are controlled, by pouring molten steel in cere shell, finally spends point dead head, cooling, vibrations solidification, when casting is cooled to 930 DEG C, with water quenching, it is crushed cere shell, cuts riser, shove charge immediately is tempered after water outlet, after keeping the temperature a period of time, bucket tooth is hung out air-cooled, antifriction metal (AFM) composite bucket tooth provided by the invention, wearability is good, with good economic efficiency.
Description
Technical field
The present invention relates to wear-resistant bucket tooth fields, and in particular to a kind of antifriction metal (AFM) composite bucket tooth and its production technology.
Background technology
Excavator bucket teeth is the important component on excavator, is similar to the tooth and vulnerable part of people, and excavator bucket teeth exists
Due to can directly be contacted with ore in the mining process in mine, operating condition is very severe.It is except normal chisel skiving
Damage is outer, and also subject to strong impact load, phenomenon of rupture frequent occurrence, service life is usually very short, thus as excavator
Main vulnerable part becomes a great problem that excavator bucket teeth producer faces, for improve bucket tooth wearability, be commonly incorporated into chromium, platinum,
Nickel, vanadium, admire and rare earth element, with strengthen austenite or formed high rigidity alloy carbide, but the proportioning between component and
Smelting process and heat treatment process it is immature, cause domestic bucket tooth to be still not up to the high-quality level of high abrasion degree.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of antifriction metal (AFM) composite bucket tooth and its production technology, pass through
Optimizing raw material formula and proportioning, improve production technology, the temperature in stringent control each stage and used time, reach production high abrasion degree gold
Belong to the purpose of composite bucket tooth.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of antifriction metal (AFM) composite bucket tooth, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：
C：0.8-1.5%, Mn：0.8-1.0%, Ti：0.3-0.4%, Si：0.3-0.4%, Ca：0.5-1.0%, Cr：0.5-1.0%,
Ni:0.4-0.9%, V：0.5-0.8%, S：0.2-0.5%, B：In 0.1-0.5%, surplus Fe and other production processes
Inevitable impurity.
Preferably, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：C：0.9-1.3%,
Mn：0.8-0.9%, Ti：0.35-0.4%, Si：0.3-0.35%, Ca：0.5-0.8%, Cr：0.9-1.0%, Ni:0.4-
0.5%, V：0.6-0.7%, S：0.3-0.4%, B：It is inevitable in 0.2-0.4%, surplus Fe and other production processes
Impurity.
Preferably, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：C：1.0%, Mn：
0.85%, Ti：0.38%, Si：0.33%, Ca：0.6%, Cr：0.9%, Ni：0.4%, V：0.65%, S：0.35%, B：
Inevitable impurity in 0.3%, surplus Fe and other production processes.
The production technology of above-mentioned antifriction metal (AFM) composite bucket tooth, includes the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove at 120-130 DEG C
Melting is warming up to 550-600 DEG C with the heating rate of 100-110 DEG C/h, after keeping the temperature 30-40min, keeps 120-140 DEG C/h's
Heating rate to molten bath is formed, and deoxidation degassing simultaneously, and clinker is added and covers rigid liquid surface, will be at after slotting aluminium final deoxidizing of skimming
Divide the raw material of Ti, V, S, B to be added in stove, open ultrasonic activation stirring, until liquid steel temperature is come out of the stove when being 1600-1650 DEG C；
(2) control vacuum degree is 0.04-0.05, and control pouring temperature is 1500-1550 DEG C, and pouring molten steel is being pre-processed
In cere shell afterwards, first small stream is directed at cast gate, then big stream cast immediately, finally degree point dead head 3-4 times；
(3) 1200-1300 DEG C is cooled in 10-20min, vibrations solidification is used when casting is cooled to 910-930 DEG C
Water quenching is crushed cere shell, cuts riser, and the tempering of shove charge immediately after water outlet will after controlling temperature and keeping the temperature a period of time
Bucket tooth hangs out air-cooled.
Preferably, pretreated cere shell described in step (2) refers to preheating it in advance, and control preheating temperature and be
400-450℃。
Preferably, the duration of pouring of each casting controls within 20s in step (2).
Preferably, at 10-12 times of casting, water temperature is controlled at 10 DEG C -20 DEG C the fixing fabric structure of water described in step (3).
Preferably, temperature described in step (3) is 220-240 DEG C, and 8-10h is kept the temperature after tempering.
(3) advantageous effect
A kind of antifriction metal (AFM) composite bucket tooth of present invention offer and its production technology, have the advantages that：
First, in the selection of raw material, the infrastructure elements such as C, Mn, Fe are added, single phase austenite obtains after realization heat treatment
It obtains and cures, select the elements such as Si, Cr, realize deoxidation in melting process, increase the functions such as mechanical castings, selection V, S,
B, the elements such as Ti, Ni, Ca carry out the addition of microalloy treatment, further crystal grain thinning, such as B element, can improve material
Crystal boundary binding ability, reduce intermetallic compound reversed farmland can, the low-alloyed long range order of drop and crystal grain thinning,
Secondary, on the constituent content of raw material, preferably each component content increases the same of abrasion resistance in guarantee each component performance reinforcing hardness
When, negative effect to austenite content is reduced, in manufacture craft, when melting is added clinker and covers rigid liquid surface, Neng Goubao
Molten steel is protected, oxidation is reduced, and opens ultrasonic wave stirring so that stock dispersion is uniform, crystal grain thinning, improves the wear-resisting journey of casting
Degree promotes spontaneous nucleation, crystal grain thinning to improve the rub proofness of casting, finally, controls by improving the cooling velocity of casting
The temperature of each step and reaction time, such as time of cast is controlled within 20s, it, can controlled at 1500-1550 DEG C
Casting strength is effectively improved, wearability is increased.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Embodiment 1：
A kind of antifriction metal (AFM) composite bucket tooth, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：
C：1.0%, Mn：0.85%, Ti：0.38%, Si：0.33%, Ca：0.6%, Cr：0.9%, Ni：0.4%, V：0.65%, S：
0.35%, B：Inevitable impurity in 0.3%, surplus Fe and other production processes.
The production technology of above-mentioned antifriction metal (AFM) composite bucket tooth, includes the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove melting at 120 DEG C,
550 DEG C are warming up to the heating rate of 100 DEG C/h, after keeping the temperature 30min, heating rate to the molten bath of 120 DEG C/h is kept to be formed, and
Deoxidation degassing simultaneously is added clinker and covers rigid liquid surface, and after slotting aluminium final deoxidizing of skimming, stove is added in the raw material of ingredient Ti, V, S, B
It is interior, ultrasonic activation stirring is opened, until liquid steel temperature is come out of the stove when being 1600 DEG C；
(2) control vacuum degree be 0.04, control pouring temperature be 1500 DEG C, by pouring molten steel preheating temperature be 400 DEG C
Cere shell in, first small stream is directed at cast gate, then big stream cast immediately, finally spends a dead head 3 times, when the cast of each casting
Between control within 20s；
(3) 1200 DEG C are cooled in 10min, vibrations solidification, when casting is cooled to 910 DEG C, with water quenching, water temperature control
System is crushed cere shell at 10 DEG C DEG C, cuts riser, and the tempering of shove charge immediately after water outlet, control temperature is 220 DEG C and keeps the temperature 8h
Afterwards, bucket tooth is hung out air-cooled.
Embodiment 2：
A kind of antifriction metal (AFM) composite bucket tooth, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：
C：0.9、Mn：0.8、Ti：0.35、Si：0.3、Ca：0.5、Cr：0.9、Ni:0.4、V：0.6、S：0.3、B：0.2, surplus Fe,
And inevitable impurity in other production processes.
The production technology of above-mentioned antifriction metal (AFM) composite bucket tooth, includes the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove at 120-130 DEG C
Melting is warming up to 550-600 DEG C with the heating rate of 100-110 DEG C/h, after keeping the temperature 30-40min, keeps 120-140 DEG C/h's
Heating rate to molten bath is formed, and deoxidation degassing simultaneously, and clinker is added and covers rigid liquid surface, will be at after slotting aluminium final deoxidizing of skimming
Divide the raw material of Ti, V, S, B to be added in stove, open ultrasonic activation stirring, until liquid steel temperature is come out of the stove when being 1600-1650 DEG C；
(2) control vacuum degree is 0.04-0.05, and control pouring temperature is 1500-1550 DEG C, by pouring molten steel in preheating temperature
Degree is in 400-450 DEG C of cere shell, first small stream is directed at cast gate, then big stream cast immediately, finally degree point dead head 3-4 times,
The duration of pouring of each casting controls within 20s；
(3) 1300 DEG C are cooled in 10min, vibrations solidification, when casting is cooled to 930 DEG C, with water quenching, water temperature control
System is crushed cere shell at 20 DEG C, cuts riser, and the tempering of shove charge immediately after water outlet, control temperature is 240 DEG C and keeps the temperature 10h
Afterwards, bucket tooth is hung out air-cooled.
Embodiment 3：
A kind of antifriction metal (AFM) composite bucket tooth, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：
C1.3%, Mn：0.9%, Ti：0.4%, Si：0.35%, Ca：0.8%, Cr：1.0%, Ni:0.5%, V：0.7%, S：
0.4%, B：Inevitable impurity in 0.4%, surplus Fe and other production processes.
The production technology of above-mentioned antifriction metal (AFM) composite bucket tooth, includes the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove melting at 130 DEG C,
600 DEG C are warming up to the heating rate of 110 DEG C/h, after keeping the temperature 40min, heating rate to the molten bath of 140 DEG C/h is kept to be formed, and
Deoxidation degassing simultaneously is added clinker and covers rigid liquid surface, and after slotting aluminium final deoxidizing of skimming, stove is added in the raw material of ingredient Ti, V, S, B
It is interior, ultrasonic activation stirring is opened, until liquid steel temperature is come out of the stove when being 1650 DEG C；
(2) control vacuum degree be 0.05, control pouring temperature be 1550 DEG C, by pouring molten steel preheating temperature be 450 DEG C
Cere shell in, first small stream is directed at cast gate, then big stream cast immediately, finally spends a dead head 4 times, when the cast of each casting
Between control within 20s；
(3) 1300 DEG C are cooled in 20min, vibrations solidification, when casting is cooled to 930 DEG C, with water quenching, water temperature control
System is crushed cere shell at 20 DEG C, cuts riser, and the tempering of shove charge immediately after water outlet, control temperature is 240 DEG C and keeps the temperature 10h
Afterwards, bucket tooth is hung out air-cooled.
Embodiment 4：
A kind of antifriction metal (AFM) composite bucket tooth, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：
C：1.5%, Mn：1.0%, Ti：0.4%, Si：0.4%, Ca：1.0%, Cr：1.0%, Ni:0.9%, V：0.8%, S：
0.5%, B：Inevitable impurity in 0.5%, surplus Fe and other production processes.
The production technology of above-mentioned antifriction metal (AFM) composite bucket tooth, includes the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove melting at 130 DEG C,
560 DEG C are warming up to the heating rate of 110 DEG C/h, after keeping the temperature 35min, heating rate to the molten bath of 130 DEG C/h is kept to be formed, and
Deoxidation degassing simultaneously is added clinker and covers rigid liquid surface, and after slotting aluminium final deoxidizing of skimming, stove is added in the raw material of ingredient Ti, V, S, B
It is interior, ultrasonic activation stirring is opened, until liquid steel temperature is come out of the stove when being 1610 DEG C；
(2) control vacuum degree be 0.04, control pouring temperature be 1530 DEG C, by pouring molten steel preheating temperature be 420 DEG C
Cere shell in, first small stream is directed at cast gate, then big stream cast immediately, finally spends a dead head 3 times, when the cast of each casting
Between control within 20s；
(3) 1250 DEG C are cooled in 18min, vibrations solidification, when casting is cooled to 920 DEG C, with water quenching, water temperature control
System is crushed cere shell at 18 DEG C, cuts riser, and the tempering of shove charge immediately after water outlet, control temperature is 2300 DEG C and keeps the temperature 9h
Afterwards, bucket tooth is hung out air-cooled.
Embodiment 5：
A kind of antifriction metal (AFM) composite bucket tooth, by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：
C：1.0%, Mn：0.9%, Ti：0.3%, Si：0.44%, Ca：0.7%, Cr：0.9%, Ni:0.5%, V：0.7%, S：
0.4%, B：Inevitable impurity in 0.4%, surplus Fe and other production processes.
The production technology of above-mentioned antifriction metal (AFM) composite bucket tooth, includes the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove melting at 128 DEG C,
590 DEG C are warming up to the heating rate of 104 DEG C/h, after keeping the temperature 34min, heating rate to the molten bath of 130 DEG C/h is kept to be formed, and
Deoxidation degassing simultaneously is added clinker and covers rigid liquid surface, and after slotting aluminium final deoxidizing of skimming, stove is added in the raw material of ingredient Ti, V, S, B
It is interior, ultrasonic activation stirring is opened, until liquid steel temperature is come out of the stove when being 1645 DEG C；
(2) control vacuum degree be 0.05, control pouring temperature be 1520 DEG C, by pouring molten steel preheating temperature be 410 DEG C
Cere shell in, first small stream is directed at cast gate, then big stream cast immediately, finally spends a dead head 3 times, when the cast of each casting
Between control within 20s；
(3) 1290 DEG C are cooled in 15min, vibrations solidification, when casting is cooled to 915 DEG C, with water quenching, water temperature control
System is crushed cere shell at 13 DEG C, cuts riser, and the tempering of shove charge immediately after water outlet, control temperature is 235 DEG C and keeps the temperature 9h
Afterwards, bucket tooth is hung out air-cooled.
Following table is 1-3 of the embodiment of the present invention and existing common bucket tooth in the performance test of hardness and impact flexibility etc.,
Control impact style is 10 × 10 × 55mm, v-notch sample.
| Test event | Unit | Common bucket tooth | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Hardness | HBS | 48.1 | 58.5 | 57.3 | 57.1 |
| Impact flexibility | J/cm2 | 18.5 | 29.5 | 29.3 | 29.4 |
| Tensile strength | MPa | 1650 | 1807 | 1795 | 1789 |
As seen from the above table, 1-3 of the embodiment of the present invention is superior to existing skill in hardness, impact flexibility, tensile strength properties
Art illustrates that, according to formula material provided by the invention and production technology, good wear-resistant bucket tooth can be produced have good warp
Ji effect.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited including sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of antifriction metal (AFM) composite bucket tooth, which is characterized in that by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows
At being grouped as：C：0.8-1.5%, Mn：0.8-1.0%, Ti：0.3-0.4%, Si：0.3-0.4%, Ca：0.5-1.0%, Cr：
0.5-1.0%, Ni:0.4-0.9%, V：0.5-0.8%, S：0.2-0.5%, B：0.1-0.5%, surplus Fe and other
Inevitable impurity in production process.
2. the production technology of antifriction metal (AFM) composite bucket tooth as described in claim 1, which is characterized in that a kind of antifriction metal (AFM) is compound
Bucket tooth, which is characterized in that by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：C：0.9-1.3%,
Mn：0.8-0.9%, Ti：0.35-0.4%, Si：0.3-0.35%, Ca：0.5-0.8%, Cr：0.9-1.0%, Ni:0.4-
0.5%, V：0.6-0.7%, S：0.3-0.4%, B：It is inevitable in 0.2-0.4%, surplus Fe and other production processes
Impurity.
3. the production technology of resistance to mill metal composite bucket tooth as described in claim 1, which is characterized in that a kind of antifriction metal (AFM) is compound
Bucket tooth, which is characterized in that by weight percentage, the antifriction metal (AFM) composite bucket tooth is by as follows at being grouped as：C：1.0%, Mn：
0.85%, Ti：0.38%, Si：0.33%, Ca：0.6%, Cr：0.9%, Ni：0.4%, V：0.65%, S：0.35%, B：
Inevitable impurity in 0.3%, surplus Fe and other production processes.
4. the production technology of antifriction metal (AFM) composite bucket tooth as described in claim 1, which is characterized in that include the following steps：
(1) by weight percentage, the raw material that ingredient is C, Mn, Si, Ca, Cr, Ni, Fe is entered into stove melting at 120-130 DEG C,
It is warming up to 550-600 DEG C with the heating rate of 100-110 DEG C/h, after keeping the temperature 30-40min, keeps the heating speed of 120-140 DEG C/h
Rate to molten bath is formed, and deoxidation degassing simultaneously, and clinker is added and covers rigid liquid surface, after slotting aluminium final deoxidizing of skimming, by ingredient Ti, V,
S, the raw material of B is added in stove, opens ultrasonic activation stirring, until liquid steel temperature is come out of the stove when being 1600-1650 DEG C；
(2) control vacuum degree is 0.04-0.05, and control pouring temperature is 1500-1550 DEG C, after the pre-treatment by pouring molten steel
In cere shell, first small stream is directed at cast gate, then big stream cast immediately, finally degree point dead head 3-4 times；
(3) 1200-1300 DEG C is cooled in 10-20min, vibrations solidification when casting is cooled to 910-930 DEG C, uses water quenching
Fire is crushed cere shell, cuts riser, the tempering of shove charge immediately after water outlet, after controlling temperature and keeping the temperature a period of time, by bucket tooth
It hangs out air-cooled.
5. the production technology of antifriction metal (AFM) composite bucket tooth as claimed in claim 4, which is characterized in that step is located in advance described in (2)
Cere shell after reason refers to preheating it in advance, and it is 400-450 DEG C to control preheating temperature.
6. the production technology of antifriction metal (AFM) composite bucket tooth as claimed in claim 4, which is characterized in that each casting in step (2)
The duration of pouring control within 20s.
7. the production technology of antifriction metal (AFM) composite bucket tooth as claimed in claim 4, which is characterized in that water described in step (3)
At 10-12 times of casting, water temperature is controlled at 10 DEG C -20 DEG C fixing fabric structure.
8. the production technology of antifriction metal (AFM) composite bucket tooth as claimed in claim 4, which is characterized in that step is tempered described in (3)
Temperature is 220-240 DEG C, and 8-10h is kept the temperature after tempering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362237.2A CN108486489A (en) | 2018-04-20 | 2018-04-20 | A kind of antifriction metal (AFM) composite bucket tooth and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362237.2A CN108486489A (en) | 2018-04-20 | 2018-04-20 | A kind of antifriction metal (AFM) composite bucket tooth and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108486489A true CN108486489A (en) | 2018-09-04 |
Family
ID=63312857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810362237.2A Pending CN108486489A (en) | 2018-04-20 | 2018-04-20 | A kind of antifriction metal (AFM) composite bucket tooth and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108486489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399623A (en) * | 2021-05-27 | 2021-09-17 | 徐州大鼎机械科技有限公司 | Forming process of novel wear-resistant metal casting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328179A (en) * | 1999-05-10 | 2000-11-28 | Daido Steel Co Ltd | Cold tool steel |
| CN103205638A (en) * | 2013-03-14 | 2013-07-17 | 长安大学 | Wear-resistant cast steel bucket tooth and production method thereof |
| CN105950975A (en) * | 2016-07-04 | 2016-09-21 | 四川行之智汇知识产权运营有限公司 | Preparation process of high-strength ultrawear resisting steel for petroleum drill bit |
-
2018
- 2018-04-20 CN CN201810362237.2A patent/CN108486489A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328179A (en) * | 1999-05-10 | 2000-11-28 | Daido Steel Co Ltd | Cold tool steel |
| CN103205638A (en) * | 2013-03-14 | 2013-07-17 | 长安大学 | Wear-resistant cast steel bucket tooth and production method thereof |
| CN105950975A (en) * | 2016-07-04 | 2016-09-21 | 四川行之智汇知识产权运营有限公司 | Preparation process of high-strength ultrawear resisting steel for petroleum drill bit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399623A (en) * | 2021-05-27 | 2021-09-17 | 徐州大鼎机械科技有限公司 | Forming process of novel wear-resistant metal casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2015353251B2 (en) | Low-alloy high-strength high-tenacity steel panel and method for manufacturing same | |
| WO2019205699A1 (en) | Steel for hot stamping, hot stamping process, and hot stamped component | |
| EP1777315B1 (en) | Steel for welded structure excellent in low temperature toughness of heat affected zone of welded part, and method for production thereof | |
| CN104388821B (en) | TiC particulate reinforcement type heterogeneous structure high-ductility wear-resisting steel plate and manufacture method | |
| WO2016082544A1 (en) | Super high strength gas protection welding wire containing v and manufacturing method therefor | |
| JP3543619B2 (en) | High toughness wear-resistant steel and method of manufacturing the same | |
| CN104451403A (en) | Low-temperature HB450-grade duplex structure wear-resistant steel and production method thereof | |
| CN113416889A (en) | Ultrahigh-strength hot-dip galvanized DH1470 steel with good welding performance and preparation method thereof | |
| JP3719037B2 (en) | Continuous cast slab having no surface crack and method for producing non-tempered high strength steel using this slab | |
| CN104946980A (en) | TMCP and tempering type 550 Mpa-level corrosion resistant bridge steel and production method thereof | |
| CN108060362A (en) | A kind of HB450 grades of anti-crack heterogeneous structure abrasion-resistant stee and its processing method | |
| CN108486489A (en) | A kind of antifriction metal (AFM) composite bucket tooth and its production technology | |
| CN105886881A (en) | Multi-component microalloying chrome-manganese wear-resisting alloy steel sand-suction tube and preparation method thereof | |
| CN110306110B (en) | HB500 grade easily-welded wear-resistant steel with thickness of 60-80 mm and production method thereof | |
| CN103243277A (en) | HB 400 grade crack-resisting martensite wear-resistant steel with high strength and production method | |
| JPH05171341A (en) | Production of thick steel plate excellent in toughness in welding heat-affected zone | |
| JPS6352090B2 (en) | ||
| CN115537655A (en) | High-silicon wear-resistant steel plate and production method thereof | |
| CN101880830B (en) | Steel with Brinell hardness of 430-470 for cutting edge and production method thereof | |
| AU2020455074B2 (en) | 800 MPa construction machinery medium-manganese medium-thickness steel and manufacturing method therefor | |
| CN104561792A (en) | A V-N alloyed high-strength steel plate and a manufacturing method thereof | |
| CN112575252A (en) | Economical high-crack-sensitivity high-strength steel plate and preparation method thereof | |
| CN115537642B (en) | Refining method of hypereutectic high-chromium cast iron primary carbide | |
| CN117512460B (en) | Si-Mn-Cr-Mo-V-Ti-Nb multi-alloyed ultrahigh-strength wire rod and preparation method thereof | |
| JPH0686643B2 (en) | Method for producing high hardness wear-resistant steel with HB ≧ 500 excellent in delayed cracking resistance after welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180904 |
|
| RJ01 | Rejection of invention patent application after publication |