阅读说明：本技术 一种软硬交替的碳纳米复合涂层的剃须刀片及其制备方法 (Soft-hard alternating carbon nano composite coating razor blade and preparation method thereof ) 是由 朱汉钰 于 2021-05-24 设计创作，主要内容包括：本发明公开一种软硬交替的碳纳米复合涂层的剃须刀片,包括剃须刀刀片和设置于剃须刀刀片上的金属涂层,金属涂层上交替设有软层碳膜和硬层碳膜,剃须刀刀片最外层设有聚四氟乙烯润滑层,有益效果：交替能够有效的阻止薄膜内应力积累,防止膜内缺陷扩散,防止涂层产生裂纹、翘曲或脱落,有效提高剃须刀片的表面硬度,耐磨性,延长剃须刀的使用寿命。(The invention discloses a razor blade with a carbon nano composite coating with alternating hardness and softness, which comprises a razor blade and a metal coating arranged on the razor blade, wherein a soft carbon film and a hard carbon film are alternately arranged on the metal coating, and a polytetrafluoroethylene lubricating layer is arranged on the outermost layer of the razor blade, so that the razor blade has the advantages that: the coating can effectively prevent the internal stress accumulation of the film, prevent the diffusion of defects in the film, prevent the coating from generating cracks, warping or falling off, effectively improve the surface hardness and the wear resistance of the razor blade and prolong the service life of the razor.)

1. A kind of soft or hard carbon nanometer composite coating razor blade alternately, characterized by that: the cutting blade comprises a shaver blade (101) and a metal coating (102) arranged on the shaver blade (101), wherein a soft layer carbon film (103) and a hard layer carbon film (104) are alternately arranged on the metal coating (102), and a polytetrafluoroethylene lubricating layer (105) is arranged on the outermost layer of the shaver blade (101).

2. A hard-soft alternating carbon nanocomposite coating razor blade according to claim 1, wherein: the soft layer carbon film (103) and the hard layer carbon film (104) are alternated 1-5 times, and the side close to the metal coating (102) is the soft layer carbon film (103).

3. A hard-soft alternating carbon nanocomposite coating razor blade according to claim 1, wherein: the metal coating (102) serves as a primer layer and has a thickness of about 10-50 nm.

4. A hard-soft alternating carbon nanocomposite coating razor blade according to claim 1, wherein: the soft carbon film (103) is a carbon coating with high SP2 hybrid bonds, and the hard carbon film (104) is a carbon coating with high SP3 hybrid bonds.

5. A hard-soft alternating carbon nanocomposite coating razor blade according to claim 1, wherein: the soft layer carbon film (103) and the hard layer carbon film (104) are used as strengthening coatings of the shaver, and the thickness of the strengthening coatings is about 50-150 nm.

6. A hard-soft alternating carbon nanocomposite coating razor blade according to claim 1, wherein: the metal coating (102) is prepared by vacuum ion plating, and the soft layer carbon film (103) and the hard layer carbon film (104) are prepared by high-power pulse ion beam technology.

7. The method of making a hard-soft alternating carbon nanocomposite coating razor blade according to claim 1, wherein: the method comprises the following steps:

s1: cleaning the blade: sequentially soaking the razor blade in 70-90 ℃ water for 5-10 minutes, ultrasonically cleaning the razor blade for 5-10 minutes by using an organic solution, ultrasonically cleaning the razor blade for 5-10 minutes by using a water-based cleaning agent, washing the razor blade by using normal temperature water, and drying the razor blade for later use;

s2: preparing a metal coating: placing the razor blade subjected to ultrasonic cleaning and drying treatment in a magnetic filtration cathode vacuum arc deposition device, and uniformly depositing a layer of compact metal priming layer on a razor blade substrate, wherein the metal priming layer comprises but is not limited to metals such as Ti, Cr, Pd and the like, and the arc source cathode is a metal target material with the purity of 99.9%;

s3: preparing a soft layer carbon film and a hard layer carbon film: preparing a soft carbon film and a hard carbon film by controlling ion beam energy by using a high-power pulse ion beam technology;

s4: preparing a polytetrafluoroethylene lubricating layer: preparing a polytetrafluoroethylene solution, spraying the polytetrafluoroethylene solution on the surface of the shaver carrying the soft carbon film and the hard carbon film, and sintering the mixture for 20 to 50 minutes at the temperature of 400 ℃ for 300-.

8. The method of making a hard-soft alternating carbon nanocomposite coating razor blade according to claim 7, wherein: in the step S2, the metal deposition vacuum condition is 1 × 10^-3-6×10^-3Pa, the arc source is a Ti target or a Cr target or a Pd target with the purity of 99.9 percent, the deposition arc flow is 80-130A, the negative bias is-150V-350V, the duty ratio is 50-100 percent, and the deposition time is 5-15 minutes.

9. The method of making a hard-soft alternating carbon nanocomposite coating razor blade according to claim 7, wherein: in the step S3, the deposition vacuum condition is 1 × 10^-3-6×10^-3Pa; the arc source is a C target with the purity of 99.9 percent, wherein the negative high pressure of the soft coating is 3000-8000V, the pulse width is 1-100 mu s, the deposition arc flow is 70-130A, and the deposition time is 2-5 minutes; the negative pressure of the hard coating is 50-400V, the duty ratio is 50% -100%, and the deposition time is 2-5 minutes; the soft and hard coatings are alternated for 1-5 times.

Technical Field

The invention relates to a razor blade, in particular to a razor blade with a multilayer reinforced coating and a preparation technology thereof.

Background

Among the cutting tools, a shaver is a necessity of people's daily life and has a function of cutting hairs on the skin. The base material of the razor blade is made of stainless steel, the blade edge is required to have the characteristics of strong sharpness, difficult rustiness, difficult meat falling and the like, but the problems of rustiness, blade edge breakage and the like easily occur in the using process of the razor, and the service life and the shaving comfort degree of the blade are influenced. The razor blade is made through punching 6Cr stainless steel sheet, heat treatment including deoiling with naked fire, high temperature quenching, low temperature cold plate contact quenching, low temperature tempering, printing, grinding edge, inspection, coating film, spraying PTFE, roasting to set and final packing. The coating process plays an important role in the coating process, and the coating treatment can increase the hardness and the abrasion resistance of the workpiece and reduce the friction coefficient, thereby prolonging the service life of the workpiece. The blade products from Gillette company in the market are always in the main share of the market, and in addition to the leading substrate and sharpening technology, it is important that Gillette coating process is excellent, such as a new product from Gillette company in the united states-a diamond-like film coated razor blade, which is sharper, more comfortable to use, and has a longer life. The performance of the domestic razor blade adopting the traditional Cr-plating coating is difficult to compare with that of the Gillette razor.

Therefore, the research and improvement of the film coating process are the key points for improving the quality of razor blades in China. How to prepare an excellent strengthening coating of a shaver, which can relieve the hardness difference between the coating and a blade substrate, reduce the internal stress of the coating, reduce the falling probability of the superhard coating and prolong the service life of the blade is a problem to be solved urgently.

Disclosure of Invention

Technical problem to be solved

The technical problem to be solved by the invention is as follows: how to prepare an excellent strengthening coating of a shaver, which can relieve the hardness difference between the coating and a blade substrate, reduce the internal stress of the coating, reduce the falling probability of the superhard coating and prolong the service life of the blade is a problem to be solved urgently.

(II) technical scheme

In order to overcome the problems that how to prepare an excellent strengthened coating of the shaver, the hardness difference between the coating and a blade substrate can be relieved, the internal stress of the coating is reduced, the falling probability of the superhard coating is reduced, and the service life of the blade is prolonged, the invention provides the following technical scheme:

a kind of razor blade with carbon nanometer composite coating of hardness and softness alternated, including razor blade and metal coating set on razor blade, there are carbon film of soft layer and carbon film of hard layer on the metal coating alternately, the outermost layer of razor blade has polytetrafluoroethylene lubricant layers;

further, the soft layer carbon film and the hard layer carbon film are alternated for 1-5 times, and the side close to the metal coating is the soft layer carbon film.

Further, the metal coating layer is used as a base coat layer, and the thickness of the metal coating layer is about 10-50 nm.

Further, the soft carbon film is a carbon coating with high SP2 hybrid bonds, and the hard carbon film is a carbon coating with high SP3 hybrid bonds.

Further, the soft carbon film and the hard carbon film are used as strengthening coatings of the shaver, and the thickness of the strengthening coatings is about 50-150 nm.

Furthermore, the metal coating is prepared by vacuum ion plating, and the soft carbon film and the hard carbon film are prepared by high-power pulse ion beam technology.

A preparation method of a razor blade with a carbon nano composite coating with alternating hardness and softness comprises the following steps:

s1: cleaning the blade: sequentially soaking the razor blade in 70-90 ℃ water for 5-10 minutes, ultrasonically cleaning the razor blade for 5-10 minutes by using an organic solution, ultrasonically cleaning the razor blade for 5-10 minutes by using a water-based cleaning agent, washing the razor blade by using normal temperature water, and drying the razor blade for later use;

s2: preparing a metal coating: placing the razor blade subjected to ultrasonic cleaning and drying treatment in a magnetic filtration cathode vacuum arc deposition device, and uniformly depositing a layer of compact metal priming layer on a razor blade substrate, wherein the metal priming layer comprises but is not limited to metals such as Ti, Cr, Pd and the like, and the arc source cathode is a metal target material with the purity of 99.9%;

s3: preparing a soft layer carbon film and a hard layer carbon film: preparing a soft carbon film and a hard carbon film by controlling ion beam energy by using a high-power pulse ion beam technology;

s4: preparing a polytetrafluoroethylene lubricating layer: preparing a polytetrafluoroethylene solution, spraying the polytetrafluoroethylene solution on the surface of the shaver carrying the soft carbon film and the hard carbon film, and sintering the mixture for 20 to 50 minutes at the temperature of 400 ℃ for 300-.

Further, in the above-mentioned case,in step S2, the metal deposition vacuum condition is 1 × 10^-3-6×10^-3Pa, arc source of Ti or Cr or Pd target with purity of 99.9%, deposition arc flow of 80-130A, and negative bias of-150V^～350V, duty ratio of 50% -100%, deposition time of 5-15 minutes.

Further, in step S3, the deposition vacuum condition is 1 × 10^-3-6×10^-3Pa; the arc source is a C target with the purity of 99.9 percent, wherein the negative high pressure of the soft coating is 3000-8000V, the pulse width is 1-100 mu s, the deposition arc flow is 70-130A, and the deposition time is 2-5 minutes; the negative pressure of the hard coating is 50-400V, the duty ratio is 50% -100%, and the deposition time is 2-5 minutes; the soft and hard coatings are alternated for 1-5 times.

(III) advantageous effects

The invention has the beneficial effects that:

(1) the surface hardness of the razor blade is effectively improved, and the sharpness of the razor is improved;

(2) the wear resistance of the razor blade is effectively improved, and the service life of the razor is prolonged;

(3) the alternation can effectively prevent the internal stress accumulation of the film, prevent the defect diffusion in the film and prevent the coating from generating cracks, warping or falling off.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a line graph of cut paper test data;

in the figure: 101-razor blade, 102-metal coating, 103-soft layer carbon film, 104-hard layer carbon film, 105-polytetrafluoroethylene lubricating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides the following technical solutions: the cutting blade comprises a shaver blade 101 and a metal coating 102 arranged on the shaver blade 101, wherein a soft carbon film 103 and a hard carbon film 104 are alternately arranged on the metal coating 102, a polytetrafluoroethylene lubricating layer 107 is arranged on the outermost layer of the shaver blade 101, and the soft carbon film 103 and the hard carbon film 104 can alternately prevent the internal stress accumulation of the film, prevent the defects in the film from diffusing and prevent the coating from cracking, warping or falling off.

Further, the soft layer carbon film 103 and the hard layer carbon film 104 are alternated 1 to 5 times, and the side close to the metal coating 102 is the soft layer carbon film 103.

Further, the metal coating 102 serves as a primer layer and has a thickness of about 10 to 50 nm.

Further, the soft carbon film 103 is a carbon coating with a high SP2 hybrid bond, and the hard carbon film 104 is a carbon coating with a high SP3 hybrid bond.

Further, the soft carbon film 103 and the hard carbon film 104 are used as a strengthening coating layer of the shaver, and have a thickness of about 50 to 150 nm.

Further, the metal coating 102 is prepared by vacuum ion plating, and the soft carbon film 103 and the hard carbon film 104 are prepared by high power pulsed ion beam technology.

A preparation method of a razor blade with a carbon nano composite coating with alternating hardness and softness comprises the following steps:

s1: cleaning the blade: sequentially soaking the razor blade in 70-90 ℃ water for 5-10 minutes, ultrasonically cleaning the razor blade for 5-10 minutes by using an organic solution, ultrasonically cleaning the razor blade for 5-10 minutes by using a water-based cleaning agent, washing the razor blade by using normal temperature water, and drying the razor blade for later use;

s2: preparing a metal coating: fixing the cleaned and dried razor blade in a workpiece turntable of ion beam composite vacuum equipment, wherein the razor blade is in revolution and rotation states, and when the vacuum reaches 1.5 multiplied by 10^-3At that time, the deposition of the metallic Ti layer is started. The deposition conditions at this time were: the arc source adopts a Ti target with the purity of 99.9 percent, the deposition arc flow is 60-130A, the negative bias is-150V-350V, the duty ratio is 50-100 percent, the deflection power supply is 1-5A, the deposition time is 5-15 minutes, a metal Ti layer is uniformly deposited on the surface of the razor blade, the metal layer comprises but is not limited to metals such as Ti, Cr, Pd and the like, and the arc source cathode is a metal target with the purity of 99.9 percent;

s3: preparing a soft layer carbon film and a hard layer carbon film: soft layer carbon films and hard layer carbon films were produced by controlling the ion beam energy using a high power pulsed ion beam technique, in which carbon nanocomposite coatings of alternating soft layer carbon films 103 and hard layer carbon films 104 were deposited on the surface of a razor blade provided with a Ti coating. The vacuum conditions for deposition at this time were 1.5X 10^-3Pa; the arc source is a C target with the purity of 99.9 percent, wherein the high-power pulse negative bias voltage of the soft coating is 3000-8000V, the pulse width is 1-100 mu s, the deposition arc flow is 70-130A, and the deposition time is 2-5 minutes; the negative pressure of the hard coating is 50-400V, the duty ratio is 50% -100%, and the deposition time is 2-5 minutes; the soft layer carbon film 103 and the hard layer carbon film 104 are alternated 1-5 times;

s4: preparing a polytetrafluoroethylene lubricating layer: preparing a polytetrafluoroethylene solution, spraying the polytetrafluoroethylene solution on the surface of the shaver carrying the soft carbon film and the hard carbon film, and sintering the mixture for 20 to 50 minutes at the temperature of 400 ℃ for 300-.

The razor blade with the carbon nanocomposite coating layer alternating between soft and hard prepared according to the above steps was subjected to a cut paper life test to evaluate the change in cut value required for cutting the paper 100 times, and the following table was prepared:

from the line graphs produced in the above table, as shown in fig. 2, it was found that the razor blade having a carbon nanocomposite coating alternating between soft and hard was maintained at a cutting value of 11 to 14N within 50 strokes, and after more than 50 strokes, the cutting value was increased, indicating that the razor blade was failed at that time. Meanwhile, the razor blade without coating treatment is tested, the test paper cutting is less than ten times, and the razor blade fails after the cutting value exceeds 14N, so that the nano multilayer structure design provided by the invention finally achieves the purposes of enhancing the surface hardness of the razor blade, improving the wear resistance of the razor blade and prolonging the service life of the razor blade.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.