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Cutlery Tools Scientific-Production Firm MELITA-K
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More than 10 years scientific-production firm MELITA-K developes new non-tradition technologies and modern equipment for metal working. Our technologies of cutlery tools manufacturing by use of unique sharpening methods cover a wide range of goods - from microscalpels up to butcher knives. MELITA-K combines efforts and experience of scientists and specialists of Academy of Science, Universities and Industrial Enterprises of Tatarstan.
BUTCHER KNIVES MANUFACTURING
by means of cold pressure shaping
| 1. Blanking
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Low-waste cutting out of stainless flat strip. |
2. Pressure shaping
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Cold plastic deformation under the rolling process. Working time is 20 - 40 seconds depending on type-size of blade.
GRIND OFF WORKING ENTIRELY ELIMINATED! |
3. Punching out
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Knife outline forming. Cutting edge thickness is the same all over along a blade. |
4. Vacuum hardening
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Rockwell hardness 58 - 59o. |
5. Free abrasive polishing
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Intricate trajectory of abrasive grain under the centrifuge process. Smooth as a mirror surface.
Treatment of 500 - 1500 blades during 60 - 90 min. |
6. Handle making and factening. Knife sharpening
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Plastic or hardwood handles. Sharpening by grinding and honing. |
Remember forged Knight sword, Damascene steel, Russian scythe or Samurai poniard.
We transform these methods into modern highly productive technology.
DISTINCTIVE PECULIARITIES OF TECHNOLOGY:
cold pressure working elimination of grinding process
finished blade quenching
assure to consumer:
- improvement of metal structure and properties
- long lasting sharpness
- mirror-like surface
- optimal blade shape
allow to producer:
- to cut by half a metal consumption
- to retrench the equipment expenses more than 3 times owing to use a forge-and-press equipment instead of grinding one.
- to reduce a labour-intensiveness of blade manufacturing about 2 - 2.5 times
- to make cutlery tools of various shape and size
ULTRASONIC SHARPENING
for scalpel blade manufacturing
| 1. Blank punching
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Low-waste cutting-out of strip. |
2. Ultrasonic microforging of cutting edg
first drawing
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second drawing |
Plastic shaping of blade edge in the gap between of two oscillating strikers. Oscillation frequency is 20 kHz and amplitude 15-20 .10 - 6 m.
On the analogy with sword or scythe forging, a metal flows on the direction of cutting wedge tapering. Edge thickness is reduced to 2.10 - 6 m
by two reversive drawings. Process time is 1.5-4 seconds depending on type-size of blade. Work-hardened edge, fine-grained metal structure, elimination of structure and surface defects. |
3. Vacuum hardening
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Hardening of sharpened blade provides the same hardness both on the edge and on the blade's body. |
4. Electro-chemical polishing
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Surface polishing, removal of burrs provide blade sharpness within limits
1-2.10 - 6 m. |
Distinctive peculiarity of technology - blade sharpening by means of ultrasonic micro-forging.
Our method entirely excludes traditional grinding sharpening, eliminates burns, burrs, structure and surface defects and gives rise of hardness and sharpness.
ADVANTAGES OF TECHNOLOGY:
cold cutting edge shaping by ultrasound excluding of grindstone effect
quenching of sharpened blade
assure to consumer:
- high sharpness and durability of blade edge
- smooth as a mirror cutting wedge surface
- various scalpel shape and size - concave, convex, stright linear
- optimal cutting edge profile depending on phisics-mecanical properties of operating tissue
allow to producer:
- to modify cutting edge profile configuration depending on destination and surgical requaerements of scalpel
- to reduce a labour-intensiveness of blade manufacturing about 2 - 2.5 times
- to make cutlery tools of various shape and size
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Conical grip fastens micro-scalpel to a round cross-section handle made of titanium alloy. |
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Surgical scalpels with a flat titanium handles. |
OUR PROPOSITIONS FOR COPARTNERSHIP:
- delivery of cutlery goods
- coproduction
- joint patenting
- transfer of licences and "know-how"
- joint research and development of technology
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