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SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)

SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)

Загальна довжина клинка mm: 268±05 mm
Матеріал леза K398 tool blade BOHLER powder steel is a new martensitic steel from the Swedish-Austrian concern Bohler-Uddeholm. TO Rostyslav Dozlo
Твердість клинка (метал): Hardness - 64-65 HRC
Матеріал руків'я: Stainless steel, micarta, Ironwood (Ironwood), buffalo horn, tying foam, paracord.
Довжина леза 140±05 mm
  • Availability: In Stock
12,000.00 грн.

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Description

SPECIFICATIONS:

The name of the knife: SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
Knife type: Fixed blade
Brand: Studio of exclusive handmade knives ANDROSHCHUK KNIVES 


Steel brand: Blade - laminate K390 tool BOHLER powder steel is a new martensitic steel from the Swedish-Austrian concern Bohler-Uddeholm. TO Rostyslav Dozlo
Steel sheet: One-piece, through installation on screed and resin
Blade sharpening angle: Sharpened at 34-35 degrees
Descents: Direct
Reduction: 0.1-0.2 mm
Blade hardness: 64-65 HRC
Overall length: 268mm
Blade length: 140mm
Blade width: 30mm
Blade thickness: 4.0 mm
Handle length: 128 mm
Handle thickness: 24mm
Grinding of the blade: Finishing of the blade - Galtovka (Galtovka deformation hardening of the surface layer - a technological process of mechanical processing of parts when mixed with a filler that may contain an abrasive)
Material of bolster (guard) and back: made of stainless steel
Handle material: Stainless steel, micarta, Ironwood (Ironwood), buffalo horn, tying foam, paracord.
Handle color: Bright brown
Handle Impregnation: Yes
Handle cover: Yes
Hole for a shoelace (for a lanyard): Yes
Temlyak: Paracord is popular with hikers, extreme hikers, fishermen, and the military. With the help of a strong nylon cord, equipment is fastened, tents and buildings are fixed.
Sheath: 4.0 mm Italian genuine vegetable-tanned full-grain calfskin, treated with water-repellent finish and impregnated with protective solutions, hand-stitched with waxed thread. Manual embossing of the invoice. Free suspension and belt suspension


Model: SUNNY exclusive handmade knife by the master of Fomenko Knifes studio, buy to order in Ukraine (Steel - Laminate K390™ 64-65 HRC)
Model number: 060
Country of birth: Ukraine
Craftsman: Master Oleksandr Fomenko (Fomenko Knifes), Chuhuyiv, Ukraine Studio of exclusive handmade knives FOMENKO KNIFES
Best use: Multi-purpose: hunting, fishing, cutting, slicing, etc
Knife condition: new
The price is indicated with the sheath.

 


 

A sharpened knife is not a cold weapon.

Our knives are very sharp, so open and use very carefully. We are not responsible for injuries related to the use of our knives.
Our products are intended for legal use only by responsible buyers. We will not sell our products to anyone under the age of 18.


Availability changes regularly, upon confirmation of your order, we will inform you about the availability or when the product will be ready. The product may differ slightly from the one shown in the photo.

 


Steel K390 for knives: advantages and disadvantages of the alloy

 

K390 steel from the Austrian company Bohler is considered one of the best for making knives and other cutting tools. This is a tool powder steel designed for the production of stamping tools by cold deformation. It is mainly used for the manufacture of folding and hunting (butchering) knives.

For the production of kitchen knives, as a rule, it is not used because of the high cost. Knives of the highest price category are produced from this alloy. But, like other types of steel alloys, the material has its own advantages and disadvantages.

K390 Alloy Features
Steel grade K390 is characterized by increased hardness, strength and wear resistance. It is a high speed steel with high toughness and resistance to mechanical wear. The special chemical composition provides high hardness of the material, due to which the cutting edge of the blade retains its sharpness for the longest possible time even during hard use.

At the moment, the brand is considered one of the best tool steels on the market for the production of cutting tools. During production, a homogeneous carbide structure is formed, which guarantees maximum hardness and wear resistance.

It has the following chemical composition:

Carbon (C) - 2.5%. Provides hardness, wear resistance and toughness. Due to the high carbon content, the edge retains its sharpness for a long time.
Chromium (Cr) - 4%. Increases density and tensile strength. Provides protection against corrosion, but in this case it is insignificant, since the chromium content is low. Slightly increases hardness.
Molybdenum (Mo) - 4%. Increases strength, hardness and hardenability. Helps protect against corrosion.
Silicon (Si) - 0.55%. Deoxidizes steel and increases strength.
Vanadium (V) - 9%. Improves toughness and strength. Increases resistance to abrasion and rust formation.
Tungsten (W) - 1%. Increases toughness, strength and hardenability. Under the influence of elevated temperatures does not change the hardness.
Cobalt (Co) - 2%. Increases hardness and strength. Allows hardening at elevated temperatures. Enhances the positive properties of other elements.
The HRC (Hardness value on the Rockwell scale) of this alloy varies in the range of 62-66 units. This is one of the best indicators in the steel market for the production of cutting tools. Due to this hardness, the cutting edge retains its hardness for the longest possible time. At the same time, it is quite difficult to sharpen such a hard alloy with household tools.

The material is relatively expensive, so premium segment knives are usually produced from it. At the moment, steel provides the highest possible resistance of the cutting edge to abrasive wear. At the same time, high chip resistance and good impact strength are maintained.

Knife with steel K390

Benefits of K390 steel
The main advantages of the Bohler K390 alloy include:

Increased cutting edge resistance to abrasive and other mechanical wear. The closest analogue in this characteristic is the CPM 10V brand, which was previously considered the standard, but was inferior to K390 in other parameters.
Increased impact strength due to the presence of a sufficient amount of molybdenum, tungsten and cobalt in the composition. According to this characteristic, the alloy is 1.5 times superior to CPM 10V.
Good pliability to grinding and polishing. This allows you to remove deep risks and other stress concentrators from the surface. The blade and cutting edge can be given an almost mirror-like sheen.
Increased compressive strength. This allows you to produce all kinds of dies, dies, band knives and other parts.
Chip resistant. This ensures reliability and long service life of finished products.
Structure homogeneity. Thanks to this, the characteristics are stable over the entire area of ​​the blade.
High hardness - 62-66 HRC. Even with intensive and hard use, the blade remains sharp for a long time.
Resistant to overheating during heat treatment. Steel withstands long-term heat treatment without deterioration of properties, which guarantees high-quality hardening and annealing.
The possibility of manufacturing blades by forging. This allows craftsmen to produce unique collectible items.
Possibility of additional performance enhancement in the process of manufacturing finished products. For example, some manufacturers implement additional heat treatment using multiple thermal cycling and cryogenic processing.
Large knife with K390 steel

Alloy Disadvantages
Despite the huge number of positive characteristics, the material has some disadvantages:

High price. Knives of the highest price category are made from this steel. It is used by major manufacturers. Although some private craftsmen produce products from this alloy in small batches. For the production of kitchen knives, as a rule, 

gets married.
Low resistance to corrosion. The composition contains a lot of carbon and little chromium, so the material can rust. This is a kind of payment for maximum hardness. Therefore, the knife requires proper and regular maintenance.
Sharpening the edge yourself is quite difficult. The steel is very hard and hard to sharpen. To do this, you need to use special grinding tools, such as diamond and elbor whetstones. The complexity of sharpening is one of the secondary factors in the high cost of finished products.
Risk of injury. When sharpened with a knife, it is very easy to cut yourself, so you should work with it carefully.
Small selection of models. Only a few large manufacturers and private craftsmen make knives from this alloy. At the moment, the company offers the largest number of models
Kitchen knife with steel K390

Conclusions and advice
K390 steel is deservedly considered one of the best tool grades on the market for the production of cutting tools. However, products made from this material cannot be called a good choice for every person. Knives with blades from K390 are quite expensive, and the choice of models is small.

Large companies produce products in small batches, and individual craftsmen often produce them only to order. Therefore, such products can be recommended to professionals who understand steels and the features of their operation. Such a blade must be properly cared for, otherwise it can become rusty and pitted, which often affects not only the appearance, but also the performance.
A K390 knife should be handled with care, as a damaged cutting edge will be expensive to repair due to the difficulty of resharpening. Otherwise, K390 is an excellent powder steel for making premium quality knives.

 


Well, you can buy a knife made of Knife steel CPM-S90V. Composition and properties. on our website knife.net.ua or by contacting us by phone +380961711010

It is worth remembering that when using a knife for its intended purpose and with careful handling, the knife will serve you for a very, very long time.


 

Ironwood - iron wood - handmade knives

 

iron tree

In nature, ironwood is extremely rare, therefore it occupies an honorable place in the Red Book. However, in terms of its properties, each iron tree is not inferior to the density of cast iron. Its bark can withstand gunfire, but it sinks hopelessly in water. It is worth noting that this is not a separate class of trees, but a whole group assembled from different species. It includes several dozen species of plants with unusually dense wood. They can be found on every continent. Moreover, raw materials are used both in the industrial industry and in medical practice.

ironwood product

What is special about these trees?

ironwood floor

With the naked eye, it is quite difficult to recognize the "stone" breed of a perennial plant. Especially if they are on the verge of extinction. However, they are characterized by the following features:

  • the age of such long-lived people is not less than 2 hundred years;
  • wood fiber is resistant to corrosion processes and does not deteriorate under the influence of strong acids;
  • the bark contains many tannins that protect their "hosts" from all kinds of parasites, as well as from the rot fungus;
  • the log will definitely go under water, since the density of wood is 1 t / m³, taking into account the humidity of 12%, for this reason, such breeds grow quite slowly;
  • the height of each exceeds 25 meters, and the girth of the trunk reaches more than 200 cm.

huge trunk

All these properties are necessary for an iron tree to survive in the harshest climatic conditions. Sharp temperature changes in Russia, African drought or humid European climate will not be able to harm this natural phenomenon. Such varieties of trees perfectly adapt to any adverse environment. For this, they are equipped with a considerable number of devices, starting from the unique structure of the trunk / roots and ending with the chemical composition of the bark. In this regard, they are widely used in production:

  • furniture;
  • building structures;
  • cars;
  • cosmetics;
  • decorative elements;
  • underwater equipment.

ironwood chairlever

 


High-quality and original steel inserts are a wonderful decoration of exclusive and unique knives of the studio of exclusive  handmade knives FOMENKO KNIFES  (Ukraine), which offers to order and buy in the online store https://knife.net.ua or by phone. . +380961711010


WHAT ARE MICARTA AND G10 AND HOW THESE COMPOSITE MATERIALS DIFFER FROM EACH OTHER

For decades, Micarta and G10 composite materials have been undisputed leaders in the knife industry, in particular for the production of handles of various complexity. The materials are distinguished by their availability, ease of production and processing, as well as high strength, wear resistance and unpretentiousness in maintenance. Both materials are composite, based on polymer resin, which is supplemented with layers of different types of captive fabric.

Micarta-G10-Composite-materials-photo-2

Micarta material is an electrical insulating material consisting of a polymer film (based on cresolaldehyde, phenolaldehyde, xylenolaldehyde resin, or resin from a mixture of phenolic raw materials). It is glued with the help of various electrically insulating papers, fabric (mainly linen of natural or artificial origin), or other materials of a similar structure, there are also options made of fiberglass and carbon fiber. The color of the material depends on the resin and fabric base used for gluing. Micarta is a relatively soft material and requires careful manual processing. Therefore, it is used in the production of handles for more expensive knives.

Micart is registered as a trademark of the American company Industrial Laminates / Norplex, Inc. (Norplex-Micarta). Its domestic analogue can be considered a material called "Getinax", which is mainly used as a basis for printed circuit boards. The material also has a sheet pressed structure, which consists of a paper base with the addition of phenolaldehyde or epoxy resin impregnation.


Linen-based micarta has a more attractive optical effect when sanding the fibers. After grinding, the surface can be polished or sandblasted. In the first option, the surface of the material will be smooth, silky, warm and pleasant to the touch. And in the second, the material becomes rough and has a matte shade, besides, it is securely held in the hand and does not slip.

Main characteristics of Micarta:

increased water resistance;
excellent resistance to temperature changes;
strength to mechanical processing;
dense structure that does not absorb odors;
the micro-relief of the material does not slip in the hand even when the surface is wet;
tight fit to the blade, which leaves no gaps at all and prevents food residues and harmful microorganisms from accumulating.
G10 material is a light, hard and fairly stiff composite material with a textured surface, which is mainly used in the manufacture of handles of both folding pocket knives and knives with a fixed blade. This material is created by placing several layers of fiberglass, thoroughly impregnated with epoxy resin, in a special vacuum press, where, under the influence of compression and heat, the resin finally hardens, preserving the structure of the fiberglass.

The G10 material is characterized by good impact resistance, wear resistance, moisture resistance, as well as ease of processing and maintenance. The material can be painted in different colors, including in layers. The surface of G10 can also be polished to a glossy state, or have a rough anti-slip structure, under the influence of a grinding machine or sandblasting.

Key features of the G10:

high stability of basic properties during temperature fluctuations;
withstands high shock loads, compressive and tensile loads;
high overall hydrophobicity and resistance to chemicals;
weighs relatively little, in relation to the overall strength and density;
low electrical conductivity;
can take different forms.
Composite materials G10 and Micarta have almost the same composition and external similarity. At the same time, the G10 material has higher fire resistance, although it is not a non-flammable material, it has higher compressive, bending, impact and tear strength, and it is also simpler and more economical to manufacture. At the same time, G10 is inferior in terms of "stickiness" in wet conditions, and also, tactilely, it feels less "natural".


CARBON - KNIFE HANDLES FROM THIS PREMIUM MATERIAL


One of the most prestigious and expensive materials for knife handles, in addition to titanium and expensive woods, is a type of carbon fiber, the so-called "carbon". The material is valued for its exceptional lightness, strength and aesthetic beauty.




Carbon (from the English carbon - carbon) is a polymer material with a composite composition, made from interlaced carbon fiber filaments (carbon fibers). These threads are made using epoxy resins. Average material density from 1450 kg/m³ to 2000 kg/m³. The main difference between carbon fiber and other polymers used in the manufacture of knives is its very low weight. It is the weight combined with exceptional strength that gives carbon an advantage over other handle materials: G10 polymer, Micarta, FRN plastic, etc. At the same time, carbon fiber surpasses structural steels in terms of specific strength characteristics. The main qualities of carbon are: high tensile strength, resistance to high temperatures, aggressive environments, slight expansion when heated, high electrical conductivity. Another important feature of carbon fiber is its natural black color obtained during production, which gives it a noble and elite appearance.

 

The basis of the material is carbon fiber threads, with an average thickness of 0.005-0.010 mm in diameter. Carbon fibers are made through a complex heat treatment process. The main fiber (polyacryl, viscose) is initially oxidized in air at 250°C for 24 hours. As a result of oxidation, ladder structures are formed (polymers whose macromolecules are crosslinked in pairs by regular chemical bonds). Then carbonization takes place (the process of enriching the filaments with carbon), which takes place when the fiber is heated in nitrogen or argon at temperatures from 800 to 1500 °C. As a result of carbonization, graphite-like structures (allotropic modifications of carbon) are formed. The heat treatment process ends with graphitization (the formation of graphite in materials in which carbon is contained in a dissolved state or in the form of carbides), it takes place at a temperature of 1600-3000 ° C, in an inert environment. As a result of graphitization, the amount of carbon in the fiber is brought to 99%. In addition to conventional organic fibers, special fibers from phenolic resins, lignin, coal and petroleum pitches can be used to produce carbon filaments.

 

Carbon fabrics, in turn, are obtained by weaving threads or ribbons. In the production of these threads, carbon roving is taken as the basis - a bundle of thin continuous carbon fiber filaments with a thickness of 3 microns, formed by carbon atoms. After interlacing, they form a carbon fiber frame. The amount of carbon fiber in a thread is estimated by the number "K" - the number of thousands of elementary carbon fibers. The thinnest and most expensive carbon fiber is 1K, the most common carbon fiber is 3K, there are also carbon fiber threads with K \u003d 6, 12, 24, 48. Fabric made from threads can have a variety of weaving patterns (herringbone, matting, twill weaving, etc.). To give even greater strength to the fabric, carbon threads are laid in layers, each time changing the angle of the direction of weaving. The layers are held together with epoxy resins. This structure of carbon makes it possible to reinforce the fiber with additional elements that strengthen its structure and give it different colors and surface textures. These materials can be various threads, sequins, polymeric materials of different colors.


 

The main methods for manufacturing carbon plates are:

Pressing, in which the fabric is lined in a form, previously lubricated with a so-called release agent, designed to reduce the adhesion of surfaces to each other. They can be soap, wax, etc. The fabric is then impregnated with resin and the excess is removed under vacuum (vacuum molding) or under pressure. After polymerization of the resin, the product takes on a finished look.

Vacuum infusion allows you to create a laminated bag by superimposing layers of tissue on top of each other and vacuum is applied under the layers. Then, a binder is fed through the valve and, under the action of vacuum, it fills the voids and impregnates the carbon fabric.

Vacuum forming is the bonding of layers at high temperatures and then exposure to vacuum to form the volume of the product. This method is one of the cheapest.

Winding method, which consists in winding the impregnated roving on a pre-prepared form. After winding the required number of layers, the mold with the wound fabric is placed in a heating oven and polymerized.

The SMC/BMC method consists of placing the fabric in a mold heated to operating temperature. The mold closes, as a result of which, under pressure, the material spreads into the mold cavity and hardens. At the end of the cycle, the product is removed from the molds us, and its final machining and coloring is carried out.

 

 
 

Carbon fiber is used in various fields. In particular, in aircraft and rocket building, in the production of body parts for cars and motorcycles, household appliances and high-tech research instruments. And for about 20 years, carbon fiber has been widely used in the manufacture of knife handles in the middle and premium segments. At the same time, on folding knives, carbon can be both in the form of overlays on steel liners, and in the form of the only material of the handle, fixed with screws through the bonks.

The carbon used for the manufacture of knives, in addition to its main strength characteristics, must also have a fairly attractive appearance. It is this factor that increases its cost, complicating the production technology and requiring the highest quality raw materials. For sizing the layers, the most expensive and high-quality resins are used, and more expensive equipment, in particular chemical reactors (autoclaves). In addition, the carbon fiber is sandblasted to improve hand grip, which also increases production costs. It must also be remembered that working with carbon requires mandatory respiratory protection and special rooms with good ventilation, and this also leads to an increase in price.

The color palette and texture of carbon used on knives can be varied. Among the varieties of carbon are used:

Mosaic carbon, which can be both plain and multi-colored. Such carbon is used for radius spacers on knives with complex multi-section handles. Several dyeing technologies can be used in this carbon.


 

Marble carbon is a chaotic interlacing of carbon fibers, each of which reflects light differently, which makes it possible to shine from different viewing angles.


 

Carbon Lightning Strike ("lightning strike") with a copper thread in the form of a grid woven into carbon fabric throughout its volume. Outwardly similar to that used in the fuselages of American aircraft to protect against lightning strikes. This is a thin carbon, 3.2 mm thick twill weave. It has a deep and bright pattern.

 

Like any expensive, and at the same time difficult to manufacture material, carbon has a number of disadvantages. In the production of carbon fiber plastics, it is necessary to strictly adhere to the technological parameters, in violation of which the strength properties of products are sharply reduced. To control the quality of products, ultrasonic flaw detection, X-ray and optical holography, as well as acoustic testing can be used. Without them, the manufacturer works “by touch” and may not notice hidden defects. Another serious drawback of CFRPs is their low impact resistance. It is also necessary to remember that carbon fades over time and can significantly lose its main advantage - an attractive appearance. However, despite these shortcomings, carbon is rightfully the premium material for the best knives.


High-quality and original steel inserts are a wonderful decoration of exclusive and unique knives of the Studio of exclusive handmade knives ANDROSHCHUK KNIVES (Ukraine), which offers to order and buy online store https://knife.net.ua



 

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