![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
In the first half of the year, China's Maritime Affairs Bureau received a confirmation letter from the European Maritime Affairs Bureau. China's performance of the International Convention on Seafarers Training, Certification, and Duty Standards (STCW Convention, 1978) was approved by the Maritime Affairs Agency of the European Union. This means that China’s related performance work has been recognized by 29 European countries at the same time, which has created favorable conditions for China to sign a seafarers’ certification agreement with EU member states.
According to the relevant EU legislation, the Maritime Affairs Agency of the European Union is authorized to carry out this accreditation work on behalf of the 27 member states of the European Union and two observer countries.
From October 15 to October 24, 2012, the Maritime Affairs Agency of the European Union conducted a 10-day comprehensive assessment of seafarer education, training, examinations and certification work in accordance with the bilateral review and assessment plan of the China Maritime Safety Administration and the European Maritime Affairs Agency. . The China Maritime Safety Administration successfully completed the review work and gave feedback on the issues raised by the inspection and evaluation team in a timely manner. It was highly evaluated by the inspection team of the Maritime Affairs Agency of the European Union and verified the comprehensiveness and effectiveness of the implementation of the STCW Convention and its amendments in China. .
According to reports, the Maritime Affairs Agency of the European Union (EU Maritime Bureau) has already carried out this assessment on 41 States parties to the International Maritime Organization. Only some countries have been approved. At present, the number of foreign seafarers in China has rapidly increased from 30,000 in 2006 to 120,000 in 2013, making it the world’s second largest exporter of seafarers. The EU's recognition has opened the door to the European shipping market for Chinese seafarers and also marks the entry of Chinese seafarers into the ranks of internationally qualified seafarers.
Cold drawn steel bar is produced by hot rolled steel bar or wire rod to get smooth surface, more precision size, higher mechanical properties, which improves machining characteristics. It can also get various sections and sizes. So cold drawn steel bar is a better choice for machining users.
According to different steel grade, the production line is usually different. The Basic production line is as below:
For high carbon steel or alloy steel bars, to avoid the cracks in inner or surface, the bars are usually required to be annealed before cold drawing.
To get different mechanical properties or hardness depending on final usage, the cold drawn bars will also be heat treated such as annealed, normalized or quenched and tempered(Q&T).
For CNC machines usage, to get much more precision sizes or much more better surface roughness for chrome plating, the cold drawn steel bars can also be centerless ground or polished.
We have more advantages on producing cold drawn steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of cold drawn steel bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
Cold Drawn Bar,Round Steel Bar,Cold Drawn Steel Bar,Aisi 1018 Steel Square Bar
SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdhighstrengthsteelbolts.com