Bearing
is a plain bearing in direct contact with the journal of the first
parts, commonly used bushings have two types of split and split, all
type bushings, also known as bushings. Patented
technology products, "bimetal sleeve parts information," is a profiled,
standardized sintered bimetallic bushings (sleeve) parts automation
sleeve new information. After
the split sleeve, it became a figure-shaped side-piece half-shell
half-round bearing near-profile data, mainly for a variety of plain
bearings (semi-circular bush, sleeve) processing company, General
Machinery Plant and machinery repair and other companies, Provides Near Net Shape Material products for bimetallic bearings and bushings.
(1) With "bimetal sleeve parts information" after its split, the gap
by punching, burrs, milling groove, pull the radius high, lining the
diameter can be made of semicircular bearing products.
(2) sleeve products, just a very small amount of side machining (such
as: chamfering, drilling, car or pressure tank) can be installed
directly into the use of parts, its skills are introduced in the
following features:
First, the existing steel - copper alloy bimetal bearing, sleeve material production skills
Existing steel - copper alloy bimetallic bearings, shaft sleeve system of information technology has two categories:
1.1. In the steel backing cast copper alloy production skills
(1) cast in the seamless steel pipe wall made of copper alloy bearing bush, also known as;
Casting
the entire sleeve, bearing bush, the need to cut into two semi-circular
tiles and then further processing, production of bushings with this
skill approach used more in Europe. China's production of semicircular bearing has been using this approach.
(2) Casting a copper alloy on a grooved strip to make a bimetallic strip
The
information produced by this skill, through the cutting, pre-twists,
(sleeve rounding, shaping) and other cutting processes, made of bearings
and bushings products, there is no such information in our production
line (Beijing had Similar to the Babbitt production line).
The lack of such processing of cast bearing information production is:
production skills messy, the use of equipment, data is too much, making
a higher cost.
1.2. Production of bimetal sheet produced by cold rolling of copper alloy powder sintered on steel plate and backing layer
With
this bimetallic strip, strip made of semicircular bush, and the roll
made of bushings, compared to pouring skills, production efficiency has
improved, but also now use a more. However,
in the production of bimetal plates, strips, the use of production
equipment is still more skill flow long, large area, energy consumption,
to the semi-circular bearings and bushings, the information necessary
through cutting, Pre-twists, (sleeve to be cut, pre-twists, rolling, plastic) and other
processes such as cutting, so still charge, work hours, cost mold, an
increase of the processing cycle and production costs, usually demand
certain planning.
The use of sheet metal rolling sleeve, there are two skills in the lack of:
(1) Copper alloys sintered on bimetal plates are usually cold rolled
open with a two-roll planar mill with a relative density of ≤97% and can
not be used as high-performance mechanical construction parts.
(2)
the bushing rolling, whether it is still docking buckle lap, there is a
seam, making the sleeve to maintain poor accuracy, the lack of these
two points are a direct impact on the bearing bush, the mechanical
function and Use features.
Second, bimetal bushing parts information production skills (patented skills products)
Bi-metal sleeve parts information production skills profile
In
order to overcome the lack of these two types of skills, improve the
mechanical skills of goods, saving metal materials, especially
non-ferrous metal materials to save, save process, save the production
of information equipment, saving processing tooling and machine tools, Slit
copper tube wall sintered copper alloy, radial roller rolling skills,
the sintering of the copper alloy lining closely to the relative density
of ≥ 98% / above, the functional requirements of the mechanical
structure of the parts. China has created and started the production of steel - sintered
copper alloy bearing bush (shaft sleeve) parts of the production methods
of information - "Sintering - swing roller method."
With
"bimetal sleeve parts information" to do semi-circular bearing, to be
split, the gap by punching, burr, milling groove, pull radius, diameter
can be made of semicircle cylindrical lining products, which should be
professional by the bearing The factory is over.
Third, the use of patented technology to produce bimetal bushings parts Description:
(1) bimetallic sleeve from the data to the parts at the same time the
end, only a very small amount of machining (such as: chamfering,
drilling, car or pressure tank) can be made into direct use of the
sleeve installed products.
(2), the sleeve is configured as a full circle, good rigidity, good
accuracy, easy to automate the production line in the automatic
installation;
(3)
High production efficiency (less than 3 seconds for a sleeve with a
round and round bushing), less processing steps, eliminating the need to
make double metal plates by using the casting and traditional sintering
technologies , The mold and skill used in the rolling equipment, the use of less
equipment, only the first two sets of equipment, less labor, small
footprint;
(4) high data usage, produced according to the standard of the
request, the utilization of steel and copper alloy close to one hundred
percent, energy saving, material saving, production costs low.
◎
Example of the use of sleeve data: With it to replace the whole sleeve
of GB / T 18324-2001 copper alloy 100 to 220 or larger diameter all the
cast sleeve, the energy saving, material more obvious role, social
skills More far-reaching economic benefits.
Fourth, conclusion
(1) It is a new type of all-axis bearing profile. That the sub-type bearings and bushings almost net-shaped information. Is a reasonable and efficient use of metal capital steel - copper
alloy bimetallic bearings information profiled, standardized products.
(2) production methods and equipment for the founding of our country, is a development direction of the industry.
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