CN1210917A - Autolytic hard alloy cloth - Google Patents
Autolytic hard alloy cloth Download PDFInfo
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- CN1210917A CN1210917A CN 98118200 CN98118200A CN1210917A CN 1210917 A CN1210917 A CN 1210917A CN 98118200 CN98118200 CN 98118200 CN 98118200 A CN98118200 A CN 98118200A CN 1210917 A CN1210917 A CN 1210917A
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Abstract
Autolytic hard alloy cloth as one wear resisting bead welding material is produced by mixing high carbon ferrochromium, ferroborn, duriron and ferronickel powder in certain proportion and then adhering the mixture with bone glue solution onto cloth. It has high hardness and is wear resistant, easy to produce and low in production and use cost. When it is used in bead welding of metal workpiece, only small welding current and small diameter graphite electrode are needed, and both AC and DC motor are useable.
Description
The invention belongs to and a kind ofly be used for built-up welding at the lip-deep hardfacing materials of all kinds of metal works.
At present, in existing resurfacing welding material, having with Switzerland Castolin company from form is the atomized alloy powder of representative, the metallurgy cast alloy cast block of former Soviet Union's crust institute of welding development and the paste alloy powder that Britain's coal system adopts are arranged, and the silk, rod, band, the tubulose hardfacing alloy that generally adopt, its affiliated alloy system is iron-based, Ni-based, cobalt-based etc.The wherein special melting spray equipment of needs of producing of atomized alloy powder, and the amount of obtaining of finished product only can reach 80%, 10% windage is arranged again during use and need special-purpose dust feeder; The metallurgical casting piece need increase once metallurgical casting process; When using, the paste alloy powder needs in-place coating, airing supervisor, complex process; Silk, rod, band, tubulose resurfacing welding material are difficult to realize the high alloy content of resurfacing welding material again.At the problem that above-mentioned technology exists, China Harbin Welding Inst.,Ministry of Machine Building developed Fe-05 surfacing welding alloy powder agglomates in 1985, and had declared patent of invention (patent No. 85102440) in then.This invention is compared with prior art at that time, has simplified process for making, has reduced the material manufacturing cost, uses also more conveniently, has higher economic benefit.But, because Fe-05 surfacing welding alloy powder agglomates is a high carbon ferro-chrome, ferro-boron, the mechanical powder of ferrosilicon and 102Fe atomized powder join by a certain percentage even after, can make bulk alloy as adhesive bonds and at 500 kilograms below with upward pressure with waterglass, so reparation technology is still complicated, and because the molten effect of the resistance of waterglass, when with Fe-05 surfacing welding alloy powder block surfacing during at the workpiece position, its welding current reaches 200～300 amperes, graphite rod during dc welding machine or carbon electrode diameter are 15 millimeters of φ 10～φ, are 10 millimeters of φ 8～φ during A.C. welder.
Purpose of the present invention is exactly the problem and shortage that exists at its reparation technology of Fe-05 surfacing welding alloy powder agglomates, by designing new composition prescription and selecting new bonding agent, a kind of autolytic hard alloy cloth is provided, under the natural environment that need not to pressurize, make wear-resistant overlay welding alloy material, reach that manufacturing technique is simple, electric current is little, need not the large electrode rod, electrode bar need not replacing, AC/DC universal, build-up welding alloy material hardness height, ABRASION RESISTANCE are good, outer shape and size Selection purpose easily.
Basic design of the present invention is, autolytic hard alloy is respectively the high carbon ferro-chrome of (55～59) % by the mechanical powder particle less than 60 orders, weight ratio and strengthens boron, silicon Si dosage and play the ferrosilicon of ferro-boron, (3～5) % of (36～38) % of short molten effect and after 2% ferronickel mechanical powder evenly mixes, make the pasty state alloy with having the gelatine that increases molten function as bonding agent, spread upon on the cloth, under the nature that need not to pressurize, constitute autolytic hard alloy cloth.
The present invention has hardness height (Rockwell Hardness HRc＞60), ABRASION RESISTANCE is good, manufacturing technique is simple, with low cost, welding current is little, appearance and size and shape are selected characteristics easily.
Below optimum implementation of the present invention is described in detail.Autolytic hard alloy cloth is made of the mechanical powder of high carbon ferro-chrome, ferro-boron, ferrosilicon and ferronickel, and its weight ratio is: high carbon ferro-chrome (55～59) %, ferro-boron (36～38) %, ferrosilicon (3～5) %, ferronickel 2%.The mechanical powder of high carbon ferro-chrome, ferro-boron, ferrosilicon, ferronickel is made the pasty state alloy with gelatine solution as bonding agent after evenly mixing according to the above ratio, spreads upon on the cloth, constitutes autolytic hard alloy cloth under the nature that need not to pressurize.The mechanical powder granularity of high carbon ferro-chrome, ferro-boron, ferrosilicon, ferronickel is less than 60 orders.Realize that best way of the present invention is to adopt the carbon arc bead-welding technology: on the middle-low alloy steel of 4 millimeters of thickness, carbon steel steel plate, perhaps the surface of the work that bears low stress abrasive wear of forged steel, cast steel carries out built-up welding; Graphite rod or carbon-point with 8 millimeters of diameter phi 6～φ, 30～300 millimeters of length are done electrode, and direct current or ac arc wedling machine are done power supply, 120～150 Ampere currents carry out built-up welding.During built-up welding,, the autolytic hard alloy cloth of certain size, shape is placed on surfacing part, with carbon arc it is deposited on the surface of the work then, form wearable overlay according to the workpiece requirement.
Claims (3)
1. one kind is used for built-up welding at the lip-deep autolytic hard alloy cloth of metal works, it is characterized in that this hard alloy cloth is made of the mechanical powder of high carbon ferro-chrome, ferro-boron, ferrosilicon, ferronickel, its weight ratio is: high carbon ferro-chrome (55～59%), ferro-boron (36～38) %, ferrosilicon (3～5) %, ferronickel 2%.
2. autolytic hard alloy cloth according to claim 1, after the mechanical powder that it is characterized in that high carbon ferro-chrome, ferro-boron, ferrosilicon, ferronickel is evenly mixed in proportion, as bonding agent, make the pasty state alloy with gelatine solution, under nature, be bonded on the cloth.
3. autolytic hard alloy cloth according to claim 1, the mechanical powder granularity that it is characterized in that high carbon ferro-chrome, ferro-boron, ferrosilicon, ferronickel is less than 60 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98118200 CN1210917A (en) | 1998-09-29 | 1998-09-29 | Autolytic hard alloy cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98118200 CN1210917A (en) | 1998-09-29 | 1998-09-29 | Autolytic hard alloy cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1210917A true CN1210917A (en) | 1999-03-17 |
Family
ID=5225960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98118200 Pending CN1210917A (en) | 1998-09-29 | 1998-09-29 | Autolytic hard alloy cloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1210917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194711A (en) * | 2013-04-18 | 2013-07-10 | 北京工业大学 | Preparation methods of powder-cored wire for ferro-based coating with higher heat conductivity and coating |
| CN105603290A (en) * | 2016-01-19 | 2016-05-25 | 苑俊奎 | Instantly soluble hard alloy block and preparation method and application thereof |
-
1998
- 1998-09-29 CN CN 98118200 patent/CN1210917A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194711A (en) * | 2013-04-18 | 2013-07-10 | 北京工业大学 | Preparation methods of powder-cored wire for ferro-based coating with higher heat conductivity and coating |
| CN103194711B (en) * | 2013-04-18 | 2015-10-14 | 北京工业大学 | A kind of preparation has the iron-based coating powder cored filament material of higher heat-conductivity and the preparation method of coating |
| CN105603290A (en) * | 2016-01-19 | 2016-05-25 | 苑俊奎 | Instantly soluble hard alloy block and preparation method and application thereof |
| CN105603290B (en) * | 2016-01-19 | 2017-11-21 | 苑俊奎 | Instant capacity hard alloy blocks and its production and use |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |