Hebei dongan
seiko Co.,Ltd ,we are specialized in producing all kinds of ladder class blank
shaft. Its predecessor was hebei
metallurgy technology development company, founded in 1984. It is covering
30,000 square meters including 16,000 square meters for production area. We had
80 sets of various facilities and 130 million RMB ,our wedge rolling process
and technology came from University
of Science and Technology
Beijing !
The basis principle of wedge rolling
process is firstly putting the heated rods into the middle of two same-side
rotating molds with wedge-shaped gibbous , the rods was driven by molds to do
reverse turning movement , at the same time rods is compression deformation in
radical and extension deformation in axial ,finally the ladder shaft component
is achieved. Its feature is high productivity, high precision, small error,good product quality, saving raw materials, good work environment.
There are 10 sets gross wedge rolling
machines, including two Cross wedge rolling machine H630, three Cross wedge
rolling machine H750, two Cross wedge rolling machine H1000, three Cross wedge
rolling machine H1200, matched 10 sets medium-frequency induction heart
furnaces, one 1600mt-Friction-press machine,each of 250\450 ring rolling mill,
two holed lathes, one gantry sawing lathe. The strip mill machine can product
60MT/day in single shift, three non-oxidation isothermal normalizing machines, the
production capacity is 7.2MT/hour for axial products with ø10---ø128mm£¬L¨Q1200mm. It also can roll all kinds of rotary axial
blank and forging, such as Transmission gear shaft, engine camshaft, oil pump
shaft¡¢semi-axle shaft sleeve, hollow shaft¡¢electric tools, engineering machinery etc, annual
production capacity more than 50,000MT, while we have numerically controlled
lathe and rough turning, final turning process .
Our company thinks highly of R&D and innovation
abilities. We invest more than 3% of sales revenue on R&D funding every
year. There are 1 Academician of Academy of Engineering, 3 Doctors and more 50 senior
engineers and engineering
technology administrators. We have set
up a Cross-wedge-rolling Technology R&D lab which can reach domestic advanced
level and established a long-termcooperative relationship with national
efficient rolling parts research and extension center .
Our
factory has established the perfect quality management system and has advanced online testing equipments,
which are 1 set reading directly spectrographs for chemical analysis, 3 sets metallographic
examination equipments, 5 sets rigidity testing equipments, 2 sets furnace
equipments for experiment, 1 set spectroscope, 10 sets domestic and foreign
digital ultrasonic detectors, 4 imported hand-held infrared thermometers, every
medium-frequency induction heating furnace are matched with fixed infrared
radiation thermometer, analytic balance etc. Our factory have passed
ISO9001:2000, ISO/TS16949 in
2002 and 2006. Our auto gear shaft blanks get "Excellent Supplier"
title from Shan'xi Fast Gear Co.,Ltd for two consecutive years, meanwhile oil
pump shaft blank series get "Preeminent New Products" published firstly
by China Hydraulic Pneumatic Sealing Parts Industry Association. We passed the
identification of 10000MT class gross wedge rolling project in 2010 and setted
up Academician Workstations in 2011 .
Our company always abides by the "good faith" as
management philosophy and firmly
establish "product reflects character" as enterprise culture. Beside
we insists on the quality police of "market-oriented,
satisfyingcustomers' needs, continuously surpass ourselves, completely pursue excellence". We will continuous make improvement, improve ourselves and pursuit excellence.
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