CN107695265B - Iron forges technique within a kind of day - Google Patents
Iron forges technique within a kind of day Download PDFInfo
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- CN107695265B CN107695265B CN201710939684.5A CN201710939684A CN107695265B CN 107695265 B CN107695265 B CN 107695265B CN 201710939684 A CN201710939684 A CN 201710939684A CN 107695265 B CN107695265 B CN 107695265B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
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- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of day iron to forge technique, first using Chinese sword item as middle layer, one layer of careless steel is added to forge to form the first composite material respectively in its two sides, basic blade material is made through folding to forge, then distinguishes compound one layer of day iron in the two sides of basic blade material, forms the second composite material, compound and post-processing is forged repeatedly, day iron sword is made, with good sharpness, hardness and toughness, comprehensive performance is good.Selection of the invention is most important, and careless steel is forged as the foam product rich in bubble, provides preferable toughness basis, in conjunction with Chinese sword item, sharpness and toughness can be improved, last compound day iron, properties are further promoted.
Description
Technical field
The present invention relates to one kind to forge technique, and in particular to a kind of day iron forges technique.Belong to and forges technical field.
Background technique
Its iron also known as ataxite, iron meteorite or meteoric iron, are one kind of aerolite, chemical component based on iron, nickel and cobalt,
Content is more than 95%, wherein nickel is bound to exist, and content is between 5% to 25%.In ancient times also by smelt obtain iron it
Before, the iron that the mankind use earliest is exactly day iron.
By the consummate technique that forges weapons are made in day iron by people in ancient times, for defending.It is so-called to forge, it is simple next
It says, metal is forged and pressed under red heat state.Forging sorting there are certain requirements, and also needs to cooperate the suitable duration and degree of heating, can be made
Weapons up to standard.And day iron is extremely fragile, there are many difficulties when actually forging, and hardly results in sharpness, hardness and toughness
Satisfactory weapons.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of day iron to forge technique.
To achieve the above object, the present invention adopts the following technical solutions:
Iron forges technique within a kind of day, the specific steps are as follows:
(1) using Chinese sword item as middle layer, add one layer of careless steel to forge respectively in the two sides of Chinese sword item, form the first composite wood
Then material puts into smelting furnace and is heated to 1400~1600 DEG C, fold and forge after taking-up, basic blade material is made；Chinese sword item
The thickness ratio forged with careless steel is 1:1.1~1.2；
(2) compound one layer of day iron is distinguished in the two sides of basic blade material, form the second composite material, forge repeatedly multiple
It closes, post-processing obtains a day iron sword；Basic blade material is with day iron with a thickness of 1:1.1~1.2.
One of as a preferred technical scheme, in step (1), the facet quantity of the Chinese sword item is 4.
One of as a preferred technical scheme, in step (1), the forging technology of the Chinese sword item is as follows: being with block ironmaking
Raw material is heated to 1400~1600 DEG C repeatedly, forges molding in conjunction with folding, finally in 400~500 DEG C quenching treatment to get.
As further preferred one of technical solution, folding the number forged is 10 times, rolls over three foldings every time and forms " Z " word
Shape folds 10 times and forms 310Layer.
It is repeated heating as further preferred one of technical solution method particularly includes: often to forge 2~3 minutes, again
1400~1600 DEG C are heated to, then further takes out and forges.
One of as a preferred technical scheme, in step (1), the smelting process that the grass steel is forged is as follows: in the river of mining area
The gritty iron oxide of elutriation is raw material, is added in blast furnace after it is mixed with bamboo charcoal with mass ratio 1:0.6~0.7,1500~
1800 DEG C are refined 8~10 hours, and the foam product rich in bubble is obtained.
One of as a preferred technical scheme, in step (1), the heating temperature of smelting furnace is 1500 DEG C.
One of as a preferred technical scheme, in step (1), folding the number forged is 10 times, rolls over three foldings every time and is formed
" Z " font folds 10 times and forms 310Layer.
One of as a preferred technical scheme, during forging, often forges 2~3 minutes, put into melting stove heating again
To 1400~1600 DEG C, then further takes out and forge.
One of as a preferred technical scheme, in step (1), puts into smelting furnace before heating, be added compound for the first time
The outer surface that ingredient is wrapped in the first composite material forms protective layer.
As further preferred one of technical solution, the inventory of compounding ingredient be the first composite weight 1~
2%.
One of as a preferred technical scheme, in step (2), before forging, it is compound that addition compounding ingredient is wrapped in second
The outer surface of material forms protective layer.
As further preferred one of technical solution, the inventory of compounding ingredient be the second composite weight 1~
2%.
As further preferred one of technical solution, it is by following quality percentage that the compounding ingredient, which is matched, which to be used,
What the component of ratio was mixed: borax 10%, carbon dust 10%, field soil 30%, laterite 30%, cobalt powder 10%, plant ash 10%.
As one of technical solution still more preferably, the field soil is derived from 50cm under earth's surface.
One of as a preferred technical scheme, in step (2), it is as follows that compound process conditions are forged repeatedly: second is answered
Condensation material is put into smelting furnace, is heated to 1400~1500 DEG C, is forged after taking-up to each layer of the second composite material and is bonded, then
1600~1700 DEG C are to slowly warm up to the heating rate of 2 DEG C/min, plate complex is forged into after taking-up.
As further preferred one of technical solution, during forging, often forges 2~3 minutes, put into melting again
Then stove heating further takes out and forges to 1400~1500 DEG C or 1600~1700 DEG C.
One of as a preferred technical scheme, in step (2), post-processing includes: grinding process, double-edged sword shape is made, so
After be heat-treated, using mixed liquor made of 1~2:7 of mass ratio~8:100 potassium nitrate, triethanolamine and water as hardening media into
Row quenching, natural cooling polish to get day iron sword.
As further preferred one of technical solution, heat treatment temperature is 700~900 DEG C, and the processing time is 1~2 small
When.
As further preferred one of technical solution, the hardening media the preparation method is as follows: triethanolamine is added
Enter in water, stir and evenly mix, be then added potassium nitrate, stirring to be completely dissolved to get.
Beneficial effects of the present invention:
1, the present invention adds one layer of careless steel to forge to form the first composite material respectively first using Chinese sword item as middle layer in its two sides,
Basic blade material is made through folding to forge, then distinguishes compound one layer of day iron in the two sides of basic blade material, forms second
Composite material is forged compound and post-processing repeatedly, day iron sword is made, comprehensive with good sharpness, hardness and toughness
Excellent performance.Selection of the invention is most important, and careless steel is forged as the foam product rich in bubble, provides preferable toughness basis,
In conjunction with Chinese sword item, sharpness and toughness can be improved, last compound day iron, properties are further promoted.
2, the first composite material is forged using folding, facilitates forging for impurity, to improve the quality of sword.Folding forges
Promote careless steel and forge molecular motion between Chinese sword item, be formed by basic blade material interior tissue obtained with performance it is excellent
Change, internal uniformity is more preferable, facilitates the promotion of properties.
3, the present invention forms protection in the outer surface of the first composite material or the second composite material by the way that compounding ingredient is added
Layer avoids forging uneven formation crackle, protects frangible day iron, and save the Wei Sitaideng line of day iron itself, improve day iron
The performance of sword.Compounding ingredient is mixed by borax, carbon dust, field soil, laterite, cobalt powder and plant ash, i.e., with i.e. use, each component
Coordinated plays a good protective effect.
4, the second composite material forged repeatedly it is compound after, post-processed, including grinding process, be heat-treated and quench
Fire, wherein hardening media is mixed with the potassium nitrate, triethanolamine and water of special ratios, and each of product is further promoted
Item performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first composite material；
Fig. 2 is the structural schematic diagram of the second composite material；
Wherein, 1 is Chinese sword item, and 2 forge for careless steel, and 3 be basic blade material, and 4 be day iron.
Specific embodiment
The present invention will be further elaborated with reference to the accompanying drawings and examples, it should which explanation, following the description is only
It is not to be defined to its content to explain the present invention.
Reference implementation example 1:
The forging technology of Chinese sword item is as follows: using block ironmaking as raw material, being heated to 1400 DEG C repeatedly, forges into conjunction with folding
Type, finally in 400 DEG C quenching treatment to get.Folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10
It is secondary to form 310Layer.It is repeated heating method particularly includes: often to forge 2 minutes, be reheated to 1400 DEG C, then further take out and forge.
The smelting process that careless steel is forged is as follows: using the gritty iron oxide of elutriation in the river of mining area as raw material, by itself and bamboo charcoal with
It is added in blast furnace after mass ratio 1:0.6 mixing, 1500 DEG C are refined 8 hours, and the foam product rich in bubble is obtained.
Reference implementation example 2:
The forging technology of Chinese sword item is as follows: using block ironmaking as raw material, being heated to 1600 DEG C repeatedly, forges into conjunction with folding
Type, finally in 500 DEG C quenching treatment to get.Folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10
It is secondary to form 310Layer.It is repeated heating method particularly includes: often to forge 3 minutes, be reheated to 1600 DEG C, then further take out and forge.
The smelting process that careless steel is forged is as follows: using the gritty iron oxide of elutriation in the river of mining area as raw material, by itself and bamboo charcoal with
It is added in blast furnace after mass ratio 1:0.7 mixing, 1800 DEG C are refined 10 hours, and the foam product rich in bubble is obtained.
Reference implementation example 3:
The forging technology of Chinese sword item is as follows: using block ironmaking as raw material, being heated to 1500 DEG C repeatedly, forges into conjunction with folding
Type, finally in 450 DEG C quenching treatment to get.Folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10
It is secondary to form 310Layer.It is repeated heating method particularly includes: often to forge 2 minutes, be reheated to 1500 DEG C, then further take out and forge.
The smelting process that careless steel is forged is as follows: using the gritty iron oxide of elutriation in the river of mining area as raw material, by itself and bamboo charcoal with
It is added in blast furnace after mass ratio 1:0.65 mixing, 1650 DEG C are refined 9 hours, and the foam product rich in bubble is obtained.
Embodiment 1:
Iron forges technique within a kind of day, the specific steps are as follows:
(1) Chinese sword item 1 made from reference implementation example 1 is regard as middle layer, the two of Chinese sword item 1 (facet quantity is 4)
Side adds grass steel made from one layer of reference implementation example 1 to forge 2 respectively, is formed the first composite material (Fig. 1), then puts into smelting furnace and adds
Heat folds after taking-up and forges, basic blade material is made to 1400 DEG C；The thickness ratio that Chinese sword item 1 and careless steel forge 2 is 1:1.1；
(2) compound one layer of day iron 4 is distinguished in the two sides of basic blade material 3, formed the second composite material (Fig. 2), repeatedly
Forge it is compound, post-processing, obtain a day iron sword；Basic blade material 3 is with day iron 4 with a thickness of 1:1.1.
In step (1), folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10 times and forms 310
Layer.It during forging, often forges 2 minutes, puts into smelting furnace again and be heated to 1400 DEG C, then further take out and forge.
In step (2), it is as follows that compound process conditions are forged repeatedly: the second composite material is put into smelting furnace, heating
To 1400 DEG C, is forged after taking-up to each layer bonding of the second composite material and (during forging, often forge 2 minutes, put into again
Smelting furnace is heated to 1400 DEG C, then further takes out and forges)；Then 1600 DEG C are to slowly warm up to the heating rate of 2 DEG C/min, taken
Plate complex is forged into after out (during forging, often to forge 2 minutes, put into smelting furnace again and be heated to 1600 DEG C, then
It further takes out and forges).
Post-processing includes: grinding process, and double-edged sword shape is made, subsequently heat-treated, with the potassium nitrate of mass ratio 1:7:100,
Mixed liquor made of triethanolamine and water is quenched as hardening media, natural cooling, is polished to get day iron sword.Heat treatment
Temperature is 700 DEG C, and the processing time is 1 hour.Hardening media the preparation method is as follows: triethanolamine is added to the water, stirring is mixed
It is even, be then added potassium nitrate, stirring to be completely dissolved to get.
Embodiment 2:
Iron forges technique within a kind of day, the specific steps are as follows:
(1) Chinese sword item 1 made from reference implementation example 3 is regard as middle layer, the two of Chinese sword item 1 (facet quantity is 4)
Side adds grass steel made from one layer of reference implementation example 3 to forge 2 respectively, is formed the first composite material (Fig. 1), then puts into smelting furnace and adds
Heat folds after taking-up and forges, basic blade material is made to 1600 DEG C；The thickness ratio that Chinese sword item 1 and careless steel forge 2 is 1:1.2；
(2) compound one layer of day iron 4 is distinguished in the two sides of basic blade material 3, formed the second composite material (Fig. 2), repeatedly
Forge it is compound, post-processing, obtain a day iron sword；Basic blade material 3 is with day iron 4 with a thickness of 1:1.2.
In step (1), folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10 times and forms 310
Layer.It during forging, often forges 3 minutes, puts into smelting furnace again and be heated to 1600 DEG C, then further take out and forge.
In step (2), it is as follows that compound process conditions are forged repeatedly: the second composite material is put into smelting furnace, heating
To 1500 DEG C, is forged after taking-up to each layer bonding of the second composite material and (during forging, often forge 3 minutes, put into again
Smelting furnace is heated to 1500 DEG C, then further takes out and forges), 1700 DEG C then are to slowly warm up to the heating rate of 2 DEG C/min, is taken
Plate complex is forged into after out (during forging, often to forge 3 minutes, put into smelting furnace again and be heated to 1700 DEG C, then
It further takes out and forges).
Post-processing includes: grinding process, and double-edged sword shape is made, subsequently heat-treated, with the potassium nitrate of mass ratio 2:8:100,
Mixed liquor made of triethanolamine and water is quenched as hardening media, natural cooling, is polished to get day iron sword.Heat treatment
Temperature is 900 DEG C, and the processing time is 2 hours.Hardening media the preparation method is as follows: triethanolamine is added to the water, stirring is mixed
It is even, be then added potassium nitrate, stirring to be completely dissolved to get.
Embodiment 3:
Iron forges technique within a kind of day, the specific steps are as follows:
(1) Chinese sword item 1 made from reference implementation example 2 is regard as middle layer, the two of Chinese sword item 1 (facet quantity is 4)
Side adds grass steel made from one layer of reference implementation example 2 to forge 2 respectively, is formed the first composite material (Fig. 1), then puts into smelting furnace and adds
Heat folds after taking-up and forges, basic blade material is made to 1400 DEG C；The thickness ratio that Chinese sword item 1 and careless steel forge 2 is 1:1.2；
(2) compound one layer of day iron 4 is distinguished in the two sides of basic blade material 3, formed the second composite material (Fig. 2), repeatedly
Forge it is compound, post-processing, obtain a day iron sword；Basic blade material 3 is with day iron 4 with a thickness of 1:1.1.
In step (1), folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10 times and forms 310
Layer.It during forging, often forges 3 minutes, puts into smelting furnace again and be heated to 1400 DEG C, then further take out and forge.For the first time
It puts into smelting furnace before heating, the outer surface formation protective layer that compounding ingredient is wrapped in the first composite material is added.It is compound to match
The inventory of material is the 2% of the first composite weight.
In step (2), before forging, the outer surface formation protective layer that compounding ingredient is wrapped in the second composite material is added.
The inventory of compounding ingredient is the 1% of the second composite weight.
Compounding ingredient, which is matched, to be used, and is to be mixed by the component of following mass percent: borax 10%, carbon dust
10%, field soil 30%, laterite 30%, plant ash 20%.Wherein, field soil is derived from 50cm under earth's surface.
It is as follows that compound process conditions are forged repeatedly: the second composite material being put into smelting furnace, 1400 DEG C is heated to, takes
It is forged after out to each layer bonding of the second composite material and (during forging, often forges 2 minutes, put into melting stove heating again
To 1400 DEG C, then further take out and forge), 1700 DEG C then are to slowly warm up to the heating rate of 2 DEG C/min, is forged into after taking-up
Plate complex (during forging, often forges 3 minutes, puts into smelting furnace again and be heated to 1700 DEG C, then further take out forging
It beats).
Post-processing includes: grinding process, and double-edged sword shape is made, subsequently heat-treated, with the potassium nitrate of mass ratio 2:7:100,
Mixed liquor made of triethanolamine and water is quenched as hardening media, natural cooling, is polished to get day iron sword.Heat treatment
Temperature is 700 DEG C, and the processing time is 1 hour.Hardening media the preparation method is as follows: triethanolamine is added to the water, stirring is mixed
It is even, be then added potassium nitrate, stirring to be completely dissolved to get.
Embodiment 4:
Iron forges technique within a kind of day, the specific steps are as follows:
(1) Chinese sword item 1 made from reference implementation example 3 is regard as middle layer, the two of Chinese sword item 1 (facet quantity is 4)
Side adds grass steel made from one layer of reference implementation example 3 to forge 2 respectively, is formed the first composite material (Fig. 1), then puts into smelting furnace and adds
Heat folds after taking-up and forges, basic blade material is made to 1600 DEG C；The thickness ratio that Chinese sword item 1 and careless steel forge 2 is 1:1.1；
(2) compound one layer of day iron 4 is distinguished in the two sides of basic blade material 3, formed the second composite material (Fig. 2), repeatedly
Forge it is compound, post-processing, obtain a day iron sword；Basic blade material 3 is with day iron 4 with a thickness of 1:1.2.
In step (1), folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10 times and forms 310
Layer.It during forging, often forges 2 minutes, puts into smelting furnace again and be heated to 1600 DEG C, then further take out and forge.For the first time
It puts into smelting furnace before heating, the outer surface formation protective layer that compounding ingredient is wrapped in the first composite material is added.It is compound to match
The inventory of material is the 1% of the first composite weight.
In step (2), before forging, the outer surface formation protective layer that compounding ingredient is wrapped in the second composite material is added.
The inventory of compounding ingredient is the 2% of the second composite weight.
Compounding ingredient, which is matched, to be used, and is to be mixed by the component of following mass percent: borax 10%, carbon dust
10%, field soil 30%, laterite 30%, cobalt powder 10%, plant ash 10%.Wherein, field soil is derived from 50cm under earth's surface.
It is as follows that compound process conditions are forged repeatedly: the second composite material being put into smelting furnace, 1500 DEG C is heated to, takes
It is forged after out to each layer bonding of the second composite material and (during forging, often forges 2 minutes, put into melting stove heating again
To 1500 DEG C, then further take out and forge), 1600 DEG C then are to slowly warm up to the heating rate of 2 DEG C/min, is forged into after taking-up
Plate complex (during forging, often forges 3 minutes, puts into smelting furnace again and be heated to 1600 DEG C, then further take out forging
It beats).
Post-processing includes: grinding process, and double-edged sword shape is made, subsequently heat-treated, with the sodium nitrate of mass ratio 1:8:100,
Mixed liquor made of triethanolamine and water is quenched as hardening media, natural cooling, is polished to get day iron sword.Heat treatment
Temperature is 900 DEG C, and the processing time is 2 hours.Hardening media the preparation method is as follows: triethanolamine is added to the water, stirring is mixed
It is even, be then added potassium nitrate, stirring to be completely dissolved to get.
Embodiment 5:
Iron forges technique within a kind of day, the specific steps are as follows:
(1) Chinese sword item 1 made from reference implementation example 2 is regard as middle layer, the two of Chinese sword item 1 (facet quantity is 4)
Side adds grass steel made from one layer of reference implementation example 3 to forge 2 respectively, is formed the first composite material (Fig. 1), then puts into smelting furnace and adds
Heat folds after taking-up and forges, basic blade material is made to 1500 DEG C；The thickness ratio that Chinese sword item 1 and careless steel forge 2 is 1:1.1；
(2) compound one layer of day iron 4 is distinguished in the two sides of basic blade material 3, formed the second composite material (Fig. 2), repeatedly
Forge it is compound, post-processing, obtain a day iron sword；Basic blade material 3 is with day iron 4 with a thickness of 1:1.2.
In step (1), folding the number forged is 10 times, rolls over three foldings every time and forms " Z " font, folds 10 times and forms 310
Layer.It during forging, often forges 2 minutes, puts into smelting furnace again and be heated to 1500 DEG C, then further take out and forge.For the first time
It puts into smelting furnace before heating, the outer surface formation protective layer that compounding ingredient is wrapped in the first composite material is added.It is compound to match
The inventory of material is the 1.5% of the first composite weight.
In step (2), before forging, the outer surface formation protective layer that compounding ingredient is wrapped in the second composite material is added.
The inventory of compounding ingredient is the 1.5% of the second composite weight.
Compounding ingredient, which is matched, to be used, and is to be mixed by the component of following mass percent: borax 10%, carbon dust
10%, field soil 30%, laterite 30%, cobalt powder 10%, plant ash 10%.Wherein, field soil is derived from 50cm under earth's surface.
It is as follows that compound process conditions are forged repeatedly: the second composite material being put into smelting furnace, 1450 DEG C is heated to, takes
It is forged after out to each layer bonding of the second composite material and (during forging, often forges 2 minutes, put into melting stove heating again
To 1450 DEG C, then further take out and forge), 1650 DEG C then are to slowly warm up to the heating rate of 2 DEG C/min, is forged into after taking-up
Plate complex (during forging, often forges 3 minutes, puts into smelting furnace again and be heated to 1650 DEG C, then further take out forging
It beats).
Post-processing includes: grinding process, and double-edged sword shape is made, subsequently heat-treated, with the nitric acid of mass ratio 1.5:7.5:100
Mixed liquor made of potassium, triethanolamine and water is quenched as hardening media, natural cooling, is polished to get day iron sword.At heat
Managing temperature is 850 DEG C, and the processing time is 1.5 hours.Hardening media the preparation method is as follows: triethanolamine is added to the water, stir
Mix mixing, be then added potassium nitrate, stirring to be completely dissolved to get.
Test example
Cutting edge of a knife or a sword was carried out to day iron sword obtained by Examples 1 to 5 with pocket knife sharpness test method using QBT 2141.2-1995 days
Sharp degree tests (result is measured with the number of plies for meeting the 100g art paper of GB/T 451.1~451.3), passes through Rockwell hardness
Experimental test Rockwell hardness, and bending strength is tested, it the results are shown in Table 1.
1. test result of table compares
| Sharpness (layer) | Hardness (HRC) | Bending strength (MPa) | |
| Embodiment 1 | 4.5 | 62 | 387 |
| Embodiment 2 | 4.3 | 60 | 389 |
| Embodiment 3 | 5.3 | 62 | 402 |
| Embodiment 4 | 5.4 | 62 | 403 |
| Embodiment 5 | 6.2 | 60 | 418 |
As shown in Table 1, present invention gained day iron sword, more than 4.3 layers of standard 100g art paper, Rockwell hardness exists sharpness
62 or more, bending strength is higher than 387MPa, has excellent sharpness, hardness and toughness.Wherein, the indices of embodiment 5
Better than Examples 1 to 4, this is because embodiment 1 and embodiment 2 do not use compounding ingredient to be protected, embodiment 3 is omitted
Potassium nitrate in hardening media is replaced with sodium nitrate by the cobalt powder in compounding ingredient, embodiment 4, illustrates compounding ingredient of the invention
And hardening media also has a direct impact properties of product.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, based on the technical solutions of the present invention, those skilled in the art are not needed to make the creative labor and can be done
Various modifications or changes out are still within protection scope of the present invention.
Claims (6)
1. iron forged technique in a kind of day, which is characterized in that specific step is as follows:
(1) using Chinese sword item as middle layer, add one layer of careless steel to forge respectively in the two sides of Chinese sword item, form the first composite material, so
It puts into smelting furnace afterwards and is heated to 1400~1600 DEG C, fold and forge after taking-up, basic blade material is made；Chinese sword item and careless steel
The thickness ratio forged is 1:1.1~1.2；
(2) distinguish compound one layer of day iron in the two sides of basic blade material, form the second composite material, forge repeatedly it is compound, after
Processing, obtains a day iron sword；Basic blade material is with day iron with a thickness of 1:1.1~1.2；
It in step (1), is put into smelting furnace before heating for the first time, the appearance that compounding ingredient is wrapped in the first composite material is added
Face forms protective layer；In step (2), before forging, the outer surface formation guarantor that compounding ingredient is wrapped in the second composite material is added
Sheath；The compounding ingredient, which is matched, to be used, and is to be mixed by the component of following mass percent: borax 10%, carbon dust
10%, field soil 30%, laterite 30%, cobalt powder 10%, plant ash 10%.
2. a kind of day iron according to claim 1 forges technique, which is characterized in that in step (1), the forging of the Chinese sword item
It is as follows to make technique: using block ironmaking as raw material, being heated to 1400~1600 DEG C repeatedly, forges molding in conjunction with folding, finally in 400~
500 DEG C quenching treatment to get.
3. a kind of day iron according to claim 1 forges technique, which is characterized in that in step (1), the smelting forged of grass steel
Sweetening process is as follows: using the gritty iron oxide of elutriation in the river of mining area as raw material, itself and bamboo charcoal being mixed with mass ratio 1:0.6~0.7
It is added in blast furnace after conjunction, 1500~1800 DEG C are refined 8~10 hours, and the foam product rich in bubble is obtained.
4. a kind of day iron according to claim 1 forges technique, which is characterized in that in step (1), fold the number forged
It is 10 times, rolls over three foldings every time and form " Z " font, folds 10 times and form 310Layer.
5. a kind of day iron according to claim 1 forges technique, which is characterized in that in step (2), forge repeatedly compound
Process conditions are as follows: the second composite material being put into smelting furnace, is heated to 1400~1500 DEG C, is forged after taking-up to second and is answered
Each layer of condensation material bonds, and is then to slowly warm up to 1600~1700 DEG C with the heating rate of 2 DEG C/min, plate is forged into after taking-up
Shape complex.
6. a kind of day iron according to claim 1 forges technique, which is characterized in that in step (2), post-processing includes: to beat
Mill processing, is made double-edged sword shape, subsequently heat-treated, is made with 1~2:7 of mass ratio~8:100 potassium nitrate, triethanolamine and water
Mixed liquor quenched as hardening media, natural cooling, polish to get day iron sword.
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| CN109261867B (en) * | 2018-11-27 | 2020-12-18 | 南通四合不锈钢制品有限公司 | Forging and pressing process of low-impurity steel cutter |
| CN112359176A (en) * | 2020-11-02 | 2021-02-12 | 江苏苏讯新材料科技有限公司 | Continuous annealing process for special steel strip |
| JP7050373B1 (en) * | 2021-06-28 | 2022-04-08 | ｎｅｔｅｎ株式会社 | How to manufacture blades |
| JP7177558B1 (en) | 2021-06-28 | 2022-11-24 | ｎｅｔｅｎ株式会社 | Method for forging meteoric iron and method for manufacturing cutlery |
| CN114131027A (en) * | 2021-11-17 | 2022-03-04 | 郑州西亚斯学院 | Wushu training sword manufacturing process |
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| JPS551946A (en) * | 1978-06-20 | 1980-01-09 | Kanesa Riki Kogyo Kk | Production of single-edged high-grade ketchen knife |
| US4247259A (en) * | 1979-04-18 | 1981-01-27 | Avco Corporation | Composite ceramic/metallic turbine blade and method of making same |
| CN1055258C (en) * | 1995-06-28 | 2000-08-09 | 朱建林 | Forging process of cold steel as handiwork |
| CN101216271B (en) * | 2007-01-04 | 2011-02-02 | 郭常喜 | Manufacture method of cutlery body with multiple pattern change |
| CN105921675A (en) * | 2016-05-11 | 2016-09-07 | 林庆宝 | Saw cutter structure and forging-stamping quenching process thereof |
| CN106891135B (en) * | 2017-03-29 | 2018-03-20 | 郑国荣 | The preparation method of aerolite double-edged sword |
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