U.S. patent application number 12/894552 was filed with the patent office on 2011-05-05 for zirconium-based amorphous alloy, spectacle frame and method for constructing the same.
This patent application is currently assigned to HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.. Invention is credited to YI-MIN JIANG, QING LIU.
Application Number | 20110100514 12/894552 |
Document ID | / |
Family ID | 43924127 |
Filed Date | 2011-05-05 |
United States Patent
Application |
20110100514 |
Kind Code |
A1 |
LIU; QING ; et al. |
May 5, 2011 |
ZIRCONIUM-BASED AMORPHOUS ALLOY, SPECTACLE FRAME AND METHOD FOR
CONSTRUCTING THE SAME
Abstract
A zirconium-based amorphous alloy includes 10.0 to 15.0 wt %
copper, 7.0 to 13.0 wt % nickel, 5.0 to 8.0 wt % niobium, and 2.0
to 5.0 wt % aluminum, with the remainder zirconium and unavoidable
impurities. A method for constructing a spectacle frame, comprises
forming a nickel-niobium alloy, a weight ratio of the nickel and
the niobium of which is being in a range between 7:8 and 13:5,
melting the nickel-niobium alloy, mixing the molten the
nickel-niobium alloy with 55.0 to 75.0 wt % Zr, 10.0 to 15.0 wt %
Cu, and 2.0 to 6.0 wt % Al to form a master alloy, melting the
master alloy, and molding the master alloy into a spectacle
frame.
Inventors: |
LIU; QING; (Shenzhen City,
CN) ; JIANG; YI-MIN; (Shenzhen City, CN) |
Assignee: |
HONG FU JIN PRECISION INDUSTRY
(ShenZhen) CO., LTD.
Shenzhen City
CN
HON HAI PRECISION INDUSTRY CO., LTD.
Tu-Cheng
TW
|
Family ID: |
43924127 |
Appl. No.: |
12/894552 |
Filed: |
September 30, 2010 |
Current U.S.
Class: |
148/403 ;
164/493; 164/495; 164/57.1 |
Current CPC
Class: |
B22D 27/15 20130101;
C22C 16/00 20130101; C22C 19/00 20130101; C22C 45/10 20130101; G02C
5/00 20130101 |
Class at
Publication: |
148/403 ;
164/57.1; 164/495; 164/493 |
International
Class: |
C22C 45/10 20060101
C22C045/10; B22D 27/00 20060101 B22D027/00; B22D 27/02 20060101
B22D027/02 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 29, 2009 |
CN |
200910309049.4 |
Claims
1. A zirconium-based amorphous alloy comprising 10.0 to 15.0 wt %
copper, 7.0 to 13.0 wt % nickel, 5.0 to 8.0 wt % niobium, 2.0 to
5.0 wt % aluminum, with the remainder zirconium and unavoidable
impurities.
2. The zirconium-based amorphous alloy of claim 1, wherein a
density of the zirconium-based amorphous alloy is in a range
between 6.2 g/cm.sup.3 and 7.0 g/cm.sup.3.
3. The zirconium-based amorphous alloy of claim 1, wherein a
Poisson's ratio of the zirconium-based amorphous alloy is in a
range between 0.35 and 4.0.
4. The zirconium-based amorphous alloy of claim 1, wherein a Young
modulus of the zirconium-based amorphous alloy exceeds 75 GPa.
5. The zirconium-based amorphous alloy of claim 1, wherein a
tensile strength of the zirconium-based amorphous alloy exceeds
1500 Mpa.
6. The zirconium-based amorphous alloy of claim 1, wherein a
maximum elastic strain of the zirconium-based amorphous alloy is
below 1.6%.
7. A spectacle frame made of a zirconium-based amorphous alloy, the
zirconium-based amorphous alloy comprising 10.0 to 15.0 wt %
copper, 7.0 to 13.0 wt % nickel, 5.0 to 8.0 wt % niobium, 2.0 to
5.0 wt % aluminum, with the remainder zirconium and unavoidable
impurities.
8. A method for constructing a spectacle frame, comprising: forming
a nickel-niobium alloy, a weight ratio of the nickel and the
niobium being in a range between 7:8 and 13:5; melting the
nickel-niobium alloy; mixing the molten the nickel-niobium alloy
with 55.0 to 75.0 wt % Zr, 10.0 to 15.0 wt % Cu, and 2.0 to 6.0 wt
% Al to form a master alloy; melting the master alloy; and molding
the master alloy into a spectacle frame.
9. The method of claim 8, wherein the nickel-niobium alloy is
formed by vacuum arc melting.
10. The method of claim 8, wherein the nickel-niobium alloy is
melted by vacuum induction.
11. The method of claim 8, wherein the master alloy is melted and
molded in a vacuum environment.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The present disclosure relates to zirconium-based amorphous
alloys, spectacle frames of zirconium-based amorphous alloy, and
methods for constructing the spectacle frame.
[0003] 2. Description of the Related Art
[0004] Titanium alloy has desirable physical and chemical
properties, such as light weight, high wear resistance, and high
corrosion resistance, making it a favorable material for spectacle
frames.
[0005] A spectacle frame constructed of a titanium alloy includes
20 to 40 wt % zirconium, 0.5 to 3.0 wt % hafnium, 0 to 2 wt %
tantalum, 0.05 to 0.20 wt % oxygen, 0.0 to 0.15 wt % carbon, 0 to
0.01 wt % nitrogen, 0 to 0.02 wt % hydrogen, with the remainder
titanium. The weight ratio of the zirconium and the hafnium is
30-50. A Young modulus of the spectacle frame is below 75 GPa (Giga
Pascal). A maximum elastic strain of the spectacle frame is below
1%. However, the Young modulus of the spectacle frame is smaller,
so that the spectacle frame is not worn tightly due to deformation
of the spectacle frame. Furthermore, appearance of the spectacle
frame is poor due to the lower maximum elastic strain of the
spectacle frame.
[0006] Therefore, there is room for improvement within the art.
DETAILED DESCRIPTION
[0007] An embodiment of a zirconium (Zr)-based amorphous alloy
contains 10.0 to 15.0 wt % copper (Cu), 7.0 to 13.0 wt % nickel
(Ni), 5.0 to 8.0 wt % niobium (Nb), and 2.0 to 5.0 wt % aluminum
(Al), with the remainder zirconium (Zr) and unavoidable
impurities.
[0008] An embodiment of a spectacle frame made of the Zr-based
amorphous alloy is described below. The Zr-based amorphous alloy
contains 10.0 to 15.0 wt % copper (Cu), 7.0 to 13.0 wt % nickel
(Ni), 5.0 to 8.0 wt % niobium (Nb), and 2.0 to 5.0 wt % aluminum
(Al), with the remainder zirconium (Zr) and unavoidable impurities.
It was found that the percentage of Cu is preferably in a range
from about 10.2 to about 13.2 wt %. The percentage of Ni is
preferably in a range from about 7.5 to about 10.3 wt %. The
percentage of Nb is preferably in a range from about 6.0 to about
9.1 wt %. The percentage of Al is preferably in a range from about
2.8 to about 5.0 wt %.
[0009] The Zr-based amorphous alloy has desirable mechanical
properties. For example, the density of the Zr-based amorphous
alloy is 6.2 to 7.0 g/cm.sup.3 (grams per cubic centimeter). The
poisson's ratio of the Zr-based amorphous alloy is 0.35 to 4.0. The
Young modulus of the Zr-based amorphous alloy exceeds 75 GPa (Giga
Pascal). The tensile strength of the Zr-based amorphous alloy
exceeds 1500 Mpa (Mega Pascal). The maximum elastic strain of the
Zr-based amorphous alloy is below 1.6%.
[0010] Referring to FIG. 1, a method for constructing a spectacle
frame of the disclosure follows.
[0011] In step S101, a Ni--Nb alloy can be formed by vacuum arc
melting. The weight ratio of the Ni and the Nb is in a range from
7:8 to 13:5;
[0012] In step S102, the Ni--Nb alloy is melted by vacuum
induction;
[0013] In step S103, the Ni--Nb alloy is mixed with the 55.0 to
75.0 wt % Zr, 10.0 to 15.0 wt % Cu, and 2.0 to 6.0 wt % Al, such
that these materials are melted to form a master alloy.
[0014] In step S104, the master alloy is melted in a vacuum
environment;
[0015] In step S105, the master alloy is molded into a spectacle
frame in a vacuum environment.
[0016] In a first example of a method of manufacturing a spectacle
frame, a Ni--Nb alloy can be formed by vacuum arc melting, wherein
a weight ratio of the Ni and the Nb is 9.7:6.1. The Ni--Nb alloy
can be melted by vacuum induction and mixed with the 63.8 wt % Zr,
12.9 wt % Cu, and 3.5 wt % Al, such that these materials are melted
to form a master alloy. The master alloy is melted and molded into
a spectacle frame in a vacuum environment.
[0017] In a second example of a method for constructing a spectacle
frame includes the following steps. A Ni--Nb alloy can be formed by
vacuum arc melting, wherein a weight ratio of the Ni and the Nb is
10.3:6.0. The Ni--Nb alloy can be melted by vacuum induction and
mixed with the 67.2 wt % Zr, 13.7 wt % Cu, and 2.8 wt % Al, to form
a master alloy melted and molded into a spectacle frame in a vacuum
environment.
[0018] In a third example of a method for constructing a spectacle
frame, a Ni--Nb alloy can be formed by vacuum arc melting, wherein
a weight ratio of the Ni and the Nb is 7.5:8.9. The Ni--Nb alloy
can be melted by vacuum induction, and mixed with the 69.8 wt % Zr,
10.2 wt % Cu, and 3.5 wt % Al, such that these materials are melted
to form a master alloy, and then melted and molded into a spectacle
frame in a vacuum environment.
[0019] In a fourth example of a method for constructing a spectacle
frame, a Ni--Nb alloy is formed by vacuum arc melting, wherein a
weight ratio of the Ni and the Nb is 9.6:9.1. The Ni--Nb alloy is
melted by vacuum induction and mixed with the 63.8 wt % Zr, 12.5 wt
% Cu, and 3.5 wt % Al, such that these materials are melted to form
a master alloy. The master alloy is then melted and molded into a
spectacle frame in a vacuum environment.
[0020] In a fifth example of a method for constructing a spectacle
frame, a Ni--Nb alloy can be formed by vacuum arc melting, wherein
a weight ratio of the Ni and the Nb is 10.0:6.3. The Ni--Nb alloy
can be melted by vacuum induction, and mixed with the 65.0 wt % Zr,
13.2 wt % Cu, and 5.5 wt % Al, such that these materials are melted
to form a master alloy. The master alloy is then melted and molded
into a spectacle frame in a vacuum environment.
[0021] The spectacle frames of the first through fifth examples
above, tested density by standard test method (GB/T1423-78),
Poisson's ratio by standard test method (GB/T8653-88), Young
modulus by standard test method (GB/T8653-88), tensile strength by
standard test method (GB/T6397-86), and maximum elastic strain by
standard test method (HB5488-91). The chemical compositions of the
Zr-based amorphous alloys are listed in Table 1. The results of the
mechanical property tests of the spectacle frames are shown in
Table 2.
TABLE-US-00001 TABLE 1 Chemical compositions of Zr-based amorphous
alloys Alloys Cu (wt %) Ni (wt %) Nb (wt %) Al (wt %) The first
example 12.9 9.7 6.1 3.5 The second example 13.7 10.3 6.0 2.8 The
third example 10.2 7.5 8.9 3.5 The fourth example 12.5 9.6 9.1 3.5
The fifth example 13.2 10.0 6.3 5.5
TABLE-US-00002 TABLE 2 Mechanical properties of spectacle frames
Maximum Poisson's Young Tensile elastic Density ratio modulus
strength strain Spectacle frames (g/cm.sup.3) (/) (GPa) (Mpa) (%)
The first example 6.7 0.38 86.7 1800 2.0 The second 6.8 0.38 85.8
1750 2.0 example The third example 6.9 0.38 87.0 1780 2.0 The
fourth 6.7 0.38 86.3 1730 1.9 example The fifth example 6.4 0.38
85.2 1700 1.9
[0022] As can be seen from Table 1 and 2, the advantages of the
spectacle frame of the disclosure include a density of the Zr-based
amorphous alloy at below 7.0 g/cm.sup.3, making the spectacle frame
light in weight and comfortably wearable to a user, a Poisson's
ratio of elastic constant of transverse deformation of material for
the Zr-based amorphous alloy at about 0.38, representing transverse
deformation of the spectacle frame to be perfectible and easily
moldable, a Young modulus of the Zr-based amorphous alloy exceeding
75 Gpa whereby the rigidity of the Zr-based amorphous alloy exceeds
that of a titanium alloy such that the spectacle frame is not prone
to deform, a tensile strength of the Zr-based amorphous alloy
exceeds 700 MPa, whereby the spectacle frame is not damaged easily,
and a maximum elastic strain of the Zr-based amorphous alloy at
over 1% meaning the spectacle frame is adaptable to a variety of
models.
[0023] It is to be understood that the Zr-based amorphous alloy can
also be used for other products, such as watch bands and
buttons.
[0024] Finally, while the present disclosure has been described
with reference to particular embodiments, the description is
illustrative of the disclosure and is not to be construed as
limiting the disclosure. Therefore, various modifications can be
made to the embodiments by those of ordinary skill in the art
without departing from the true spirit and scope of the disclosure
as defined by the appended claims.
* * * * *