U.S. patent application number 11/864912 was filed with the patent office on 2008-12-25 for high strength alloy.
Invention is credited to Chih-Ching Hsieh.
Application Number | 20080317623 11/864912 |
Document ID | / |
Family ID | 40136695 |
Filed Date | 2008-12-25 |
United States Patent
Application |
20080317623 |
Kind Code |
A1 |
Hsieh; Chih-Ching |
December 25, 2008 |
HIGH STRENGTH ALLOY
Abstract
A high strength alloy comprises: silicon with a weight
percentage of 0.1 wt %.about.0.5 wt %; manganese with a weight
percentage of 0.3 wt %.about.1.2 wt %; carbon with a weight
percentage of 2.0 wt %.about.3.0 wt %; phosphorous and sulfur with
weight percentages of 0.01 wt %.about.0.05 wt %, respectively;
chromium with a weight percentage of 5.0 wt %.about.7.0 wt %;
molybdenum with a weight percentage of 3.0 wt %.about.4.0 wt %;
tungsten with a weight percentage of 1.0.about.2.0; niobium with a
weight percentage of 0.5 wt %.about.1.7 wt %; vanadium with a
weight percentage of 5.8 wt %.about.7.8 wt %; nitrogen with a
weight percentage of 0.04 wt %.about.0.12 wt %; iron; other
elements and impurities with a weight percentage of below 2 wt
%
Inventors: |
Hsieh; Chih-Ching; (Taichung
City, TW) |
Correspondence
Address: |
Chih-Ching Hsieh
235 Chung - Ho Box 8-24
Taipei
235
TW
|
Family ID: |
40136695 |
Appl. No.: |
11/864912 |
Filed: |
September 29, 2007 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
11766113 |
Jun 21, 2007 |
|
|
|
11864912 |
|
|
|
|
Current U.S.
Class: |
420/591 |
Current CPC
Class: |
C22C 38/24 20130101;
C22C 28/00 20130101; C22C 38/001 20130101; C22C 38/22 20130101;
C22C 38/26 20130101; C22C 38/02 20130101; C22C 38/04 20130101 |
Class at
Publication: |
420/591 |
International
Class: |
C22C 28/00 20060101
C22C028/00 |
Claims
1. A high strength alloy, comprising: silicon (Si) with a weight
percentage of 0.1 wt %.about.0.5 wt %; manganese (Mn) with a weight
percentage of 0.3 wt %.about.1.2 wt %; carbon (C) with a weight
percentage of 2.0 wt %.about.3.0 wt %; phosphorous (P) with a
weight percentage of 0.01 wt %.about.0.05 wt %; sulfur (S) with a
weight percentage of 0.01 wt %.about.0.05 wt %; chromium (Cr) with
a weight percentage of 5.0 wt %.about.7.0 wt %; molybdenum (Mo)
with a weight percentage of 3.0 wt %.about.4.0 wt %; tungsten (W)
with a weight percentage of 1.0.about.2.0; niobium (Nb) with a
weight percentage of 0.5 wt %.about.1.7 wt %; vanadium (V) with a
weight percentage of 5.8 wt %.about.7.8 wt %; nitrogen (N) with a
weight percentage of 0.04 wt %.about.0.12 wt %; iron; other
elements and impurities with a weight percentage of below 2%
2. The high strength alloy as claimed in claim 1, wherein the
containment of silicon is 0.3 wt %; the containment of manganese is
0.75 wt %, the containment of carbon is 2.44 wt %; the containment
of phosphorous is 0.03 wt %; the containment of sulfur is 0.03 wt
%; the containment of chromium is 6.0 wt %; the containment of
molybdenum is 3.4 wt %; the containment of tungsten is 1.6 wt %;
the containment of niobium is 1.1 wt %; the containment of vanadium
is 6.8 wt %; the containment of nitrogen is 0.08 wt %; the
containment of other metals and impurities are below 1 wt %.
3. The high strength alloy as claimed in claim 2, wherein oxygen
containment in the other components and impurities is below 0.009
wt %.
Description
[0001] The present invention is a continuation in part of U.S.
patent application Ser. No. 11/766,113 which is assigned and
invented to the applicant and inventor of the present invention,
and thus the contents of the invention, U.S. patent application
Ser. No. 11/766,113, are incorporated into the present invention as
a part of the present invention.
FIELD OF THE INVENTION
[0002] The present invention relates to alloys, and particularly to
an alloy has preferred hardness and flexibility. The alloy of the
present invention has preferred properties in anti-wearing so that
the symbols, trademarks, scales, textures on the surfaces of the
alloy will prevent from wearing and thus can be identified easily
and have a long lifetime.
BACKGROUND OF THE INVENTION
[0003] Generally, metals are highly in strength and flexibility
without deformation and twisting and difficult to wear. Thus metals
are used in the applications for resisting strong stress and are
widely used in the daily life.
[0004] Furthermore, the physical properties of the metals further
comprises such as electric conductivity, thermal conductivity, and
highly light reflectivity. However as the metals are used in the
working tools, the properties of high strength and high flexibility
without deformation and twisting and being difficult to wear are
main concerns so that the tool can prevent from anti-reaction force
and without deformation and twisting. Furthermore, in use or
carrying, the tools can prevent from the wearing of the
environment. Furthermore, such kind of metal tools is superior in
applications and is competitive in the market.
[0005] Some additives are added to the metals as alloys so as to
have preferred properties, for example adding iron to the metal.
Other metals are used as additives, such as manganese (Mn),
molybdenum (Mo), tungsten (W), niobium (Nb), vanadium (V), chromium
(Cr), etc. These metals will generate apparent variations to the
properties of the alloy. Thus to have a preferred property, many
tests and experiments are necessary so as to balance all physical
characteristics to have a preferred features. Thereby this is a
very difficult work and thus many bad metal alloys are still used
in making working tools.
SUMMARY OF THE INVENTION
[0006] Accordingly, the primary object of the present invention is
to provide an alloy has preferred hardness and flexibility which
are better than the prior art alloys. The alloy the present
invention is good in anti-wearing so that the symbols, trademarks,
scales, textures on the surfaces of the alloy will prevent from
wearing so that they can be identified easily and have a long
lifetime.
[0007] To achieve above objects, the present invention provides a
high strength alloy, comprising: silicon (Si) with a weight
percentage of 0.1 wt %.about.0.5 wt %; manganese (Mn) with a weight
percentage of 0.3 wt %.about.1.2 wt %; carbon (C) with a weight
percentage of 2.0 wt %.about.3.0 wt %; phosphorous (P) with a
weight percentage of 0.01 wt %.about.0.05 wt %; sulfur (S) with a
weight percentage of 0.01 wt %.about.0.05 wt %; chromium (Cr) with
a weight percentage of 5.0 wt %.about.7.0 wt %; molybdenum (Mo)
with a weight percentage of 3.0 wt %.about.4.0 wt %; tungsten (W)
with a weight percentage of 1.0.about.2.0; niobium (Nb) with a
weight percentage of 0.5 wt %.about.1.7 wt %; vanadium (V) with a
weight percentage of 5.8 wt %.about.7.8 wt %; nitrogen (N) with a
weight percentage of 0.04 wt %.about.0.12 wt %; iron; other
elements and impurities with a weight percentage of below 2%.
[0008] Moreover in the present invention, the containment of
silicon is 0.3 wt %; the containment of manganese is 0.75 wt %, the
containment of carbon is 2.44 wt %; the containment of phosphorous
is 0.03 wt %; the containment of sulfur is 0.03 wt %; the
containment of chromium is 6.0 wt %; the containment of molybdenum
is 3.4 wt %; the containment of tungsten is 1.6 wt %; the
containment of niobium is 1.1 wt %; the containment of vanadium is
6.8 wt %; the containment of nitrogen is 0.08 wt %; the containment
of other metals and impurities are controlled by be below 1 wt
%.
[0009] Oxygen containment in the other components and impurities
are below 0.009 wt %.
[0010] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 shows the component ratios of the high strength alloy
of the present invention.
[0012] FIG. 2 shows a comparison of the present invention with
other prior art alloy in the property of anti-bending.
[0013] FIG. 3 shows a comparison of the present invention with
other prior art alloy in the property of anti-beating.
[0014] FIG. 4 shows a comparison of the present invention with
other prior art alloy in the property of anti-wearing.
DETAILED DESCRIPTION OF THE INVENTION
[0015] In order that those skilled in the art can further
understand the present invention, a description will be provided in
the following in details. However, these descriptions and the
appended drawings are only used to cause those skilled in the art
to understand the objects, features, and characteristics of the
present invention, but not to be used to confine the scope and
spirit of the present invention defined in the appended claims.
[0016] The object of the present invention is to provide a high
strenght alloy assembly which has a preferred hardness, a lower
flexibility, and is anti-deformation, anti-twisting, anti-wear with
a preferred tolerance
[0017] The components of the present invention are silicon (Si)
with a weight percentage of 0.1 wt %.about.0.5 wt %; manganese (Mn)
with a weight percentage of 0.3 wt %.about.1.2 wt %; carbon (C)
with a weight percentage of 2.0 wt %.about.3.0 wt %; phosphorous
(P) with a weight percentage of 0.01 wt %.about.0.05 wt %; sulfur
(S) with a weight percentage of 0.01 wt %.about.0.05 wt %; chromium
(Cr) with a weight percentage of 5.0 wt %.about.7.0 wt %;
molybdenum (Mo) with a weight percentage of 3.0 wt %.about.4.0 wt
%; tungsten (W) with a weight percentage of 1.0.about.2.0; niobium
(Nb) with a weight percentage of 0.5 wt %.about.1.7 wt %; vanadium
(V) with a weight percentage of 5.8 wt %.about.7.8 wt %; nitrogen
(N) with a weight percentage of 0.04 wt %.about.0.12 wt %; iron;
other elements and impurities with a weight percentage of below 2%
Moreover, the containment of nitrogen in the other elements and
impurities are below 0.002 wt %
[0018] Preferably, the containment of carbon is 2.44 wt % so that
the alloy has preferred hardness and flexibility. Less carbon will
reduce the hardness and too many carbons will reduce the
flexibility of the alloy. Preferably, the containments of vanadium
and niobium are 6.8 wt % and 1.1 wt %, respectively so as to form a
single carbon chemical compound.
[0019] The carbon compound will affect the carbon crystal. The
addition of vanadium and niobium has the advantage of forming a
single carbon compound with preferred strength. Preferably, the
containment of vanadium is 6.8 wt % and the containment of niobium
is 1.1 wt %. Other carbons not reacting with the vanadium and
niobium will easily react with the tungsten, manganese, chromium,
molybdenum, and other metals.
[0020] Other than the effect of preferred hardness to increase the
structural strength of the alloy, when the tungsten is reacted with
carbon, they will generate mixing carbon compound which has
preferred crystallized effect Preferably, the containment of
tungsten is 1.6 wt %. Preferably, the containment of manganese is
0.75 wt %; the containment of chromium is 6.0 wt % the containment
of molybdenum is 3.4 wt %. By this optimum ratio, the metal can be
sufficient reacted with the carbon so as to have preferred
alloy.
[0021] Other metals serve to suppress the chemical reaction
ability, increase the acid-tolerant ability and fire-tolerant
ability. The containment of each of other metals is not suitable to
be over 0.15 wt %. Preferably, the containment of silicon is 0.3 wt
%; the containment of phosphorous is 0.3 wt %; the containment of
sulfur is 0.3 wt % and the containment of nitrogen is 0.8 wt %.
[0022] To avoid that the other elements and impurities to change
the physical property of the alloy so as to reduce the original
strength, the containment of other metals and impurities are
controlled by be below 1 wt %. The oxygen containment in the other
components and impurities are preferably below 0.009 wt %. Other
component not described above is iron.
[0023] Referring to the table in FIG. 1, in the sample 6 of the
FIG. 1, wherein the containment of silicon is 0.3 wt %; the
containment of manganese is 0.75 wt %, the containment of carbon is
2.44 wt %; the containment of phosphorous is 0.03 wt %; the
containment of sulfur is 0.03 wt %; the containment of chromium is
6.0 wt %; the containment of molybdenum is 3.4 wt %; the
containment of tungsten is 1.6 wt %; the containment of niobium is
1.1 wt %; the containment of vanadium is 6.8 wt %; the containment
of nitrogen is 0.08 wt %; the containment of other metals and
impurities are controlled by be below 1 wt %. The oxygen
containment in the other components and impurities are preferably
below 0.009 wt %. Other components not described above is iron.
[0024] Referring to FIGS. 2 to 4, the present invention (sample 6)
is compared with samples 1 to 5 and samples 7 to 11 which are used
in the prior art. The anti-bending, anti-beating and anti-wearing
are used as comparison coefficients. The properties of anti-bending
and anti-beating are helpful to cause the alloy to prevent from
deformation due to external force. The anti-wearing is helpful to
cause the alloy to resist the wearing from other object. Referring
to FIGS. 2 and 3, it is known that the alloy of the present
invention has preferred hardness and flexibility than the prior art
alloy. FIG. 4 shows that the alloy the present invention is good
anti-wearing ability so that the symbols, trademarks, scales,
textures on the surfaces of the alloy will prevent from wearing so
that they can be identified easily and have a long time effect.
[0025] The present invention is thus described, it will be obvious
that the same may be varied in many ways. Such variations are not
to be regarded as a departure from the spirit and scope of the
present invention, and all such modifications as would be obvious
to one skilled in the art are intended to be included within the
scope of the following claims.
* * * * *