2015年11月19日星期四

Paris attacks: SEKO Machinery was in mourning.

On November 13,2015,the whole of the world was in mourning, we join them in this time of mourning. For the SEKO Machinery Company all staff it is a day of grief.
And We always believe that Violence can never destroy righteousness!
              
Guangdong Shunde Seko Machinery & Technology Co.,Ltd.www.gdseko.com
Lucy Xie
sevvice@gdseko.com
Skype:Lucy
Xie,SEKO Machinery
Suggested Reading:The history of steelmaking
 

How to smelting steel?

Modern steelmaking processes can be broken into two categories: primary and secondary steelmaking. Primary steelmaking involves converting liquid iron from a blast furnace and steel scrap into steel via basic oxygen steelmaking or melting scrap steel and/or direct reduced iron (DRI) in an electric arc furnace. Secondary steelmaking involves refining of the crude steel before casting and the various operations are normally carried out in ladles. In secondary metallurgy, alloying agents are added, dissolved gases in the steel are lowered, inclusions are removed or altered chemically to ensure that high-quality steel is produced after casting.
 

1Primary steelmaking

Basic oxygen steelmaking is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel. Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into steel. The process is known as basic due to the chemical nature of the refractories—calcium oxide and magnesium oxide—that line the vessel to withstand the high temperature and corrosive nature of the molten metal and slag in the vessel. The slag chemistry of the process is also controlled to ensure that impurities such as silicon and phosphorus are removed from the metal.

The process was developed in 1948 by Robert Durrer and commercialized in 1952–53 by Austrian VOEST and ÖAMG.[citation needed] The LD converter, named after the Austrian towns of Linz and Donawitz (a district of Leoben) is a refined version of the Bessemer converter where blowing of air is replaced with blowing oxygen. It reduced capital cost of the plants, time of smelting, and increased labor productivity. Between 1920 and 2000, labour requirements in the industry decreased by a factor of 1,000, from more than 3 worker-hours per tonne to just 0.003. The vast majority of steel manufactured in the world is produced using the basic oxygen furnace; in 2011, it accounted for 70% of global steel output. Modern furnaces will take a charge of iron of up to 350 tons and convert it into steel in less than 40 minutes, compared to 10–12 hours in an open hearth furnace.

Electric arc furnace steelmaking is the manufacture of steel from scrap or direct reduced iron melted by electric arcs. In an electric arc furnace, a batch of steel ("heat") may be started by loading scrap or direct reduced iron into the furnace, sometimes with a "hot heel" (molten steel from a previous heat). Gas burners may be used to assist with the melt down of the scrap pile in the furnace. As in basic oxygen steelmaking, fluxes are also added to protect the lining of the vessel and help improve the removal of impurities. Electric arc furnace steelmaking typically uses furnaces of capacity around 100 tonnes that produce steel every 40 to 50 minutes for further processing.

By-product gases from the steel making process can be used to generate electricity through the use of reciprocating gas engines.

2Secondary steelmaking

Secondary steelmaking is most commonly performed in ladles and often referred to as ladle (metallurgy). Some of the operations performed in ladles include de-oxidation (or "killing"), vacuum degassing, alloy addition, inclusion removal, inclusion chemistry modification, de-sulphurisation and homogenisation. It is now common to perform ladle metallurgical operations in gas stirred ladles with electric arc heating in the lid of the furnace. Tight control of ladle metallurgy is associated with producing high grades of steel in which the tolerances in chemistry and consistency are narrow.

3HIsarna steelmaking

The HIsarna steelmaking process is a process for primary steelmaking in which iron ore is processed almost directly into steel. The process is based around a new type of blast furnace called a Cyclone Converter Furnace, which makes it possible to skip the process of manufacturing pig iron pellets that is necessary for the basic oxygen steelmaking process. Without the necessity for this preparatory step the HIsarna process is more energy-efficient and has a lower carbon footprint than traditional steelmaking processes.

Guangdong Shunde Seko Machinery & Technology Co.,Ltd.www.gdseko.com
Lucy Xie
sevvice@gdseko.com
Skype:Lucy
Xie,SEKO Machinery

2015年11月14日星期六

Iron ore production may scale new peak

Production of iron ore in China, the world's biggest consumer of the key steelmaking ingredient, will climb to a record this year as bigger mines open, adding to a global glut that's depressing prices.
Output of low-grade, unprocessed iron ore may rise 5.6 percent to 1.52 billion metric tons this year, Shi Zhenglei, a Shanghai-based analyst with Mysteel.com, China's largest industry consultancy, said in a phone interview. That'sabout 400 million tons of seaborne equivalent, he said.

The potential extra production from China comes even as iron ore entered a bear market in March and fell below $100 last month for the first time since 2012 as top miners including Rio Tinto Ltd and BHP Billiton Ltd expanded output. An increase in Chinese iron ore output would weigh on prices and boost steel mills' bargaining power over imports, Shi said.

"Larger mines are usually owned by steelmakers so production is mostly for their own need," said Shi. "Although mining is money-losing at current prices, they have to put the new mines into operation to achieve cash flow because they've spent a lot on the construction work."

Ore with 62 percent content delivered to the port of Tianjin declined 0.7 percent to $90.90 a dry ton on June 13, the lowest level since September 2012, according to The Steel Index Ltd. Prices lost 3.8 percent last week and retreated in eight of the past nine weeks.

Production of unprocessed ore in China was 1.44 billion tons last year, or about 380 million tons of seaborne equivalent, Mysteel's Shi said.

Iron content

Chinese iron ore typically contains half or less of the iron content found in ore from Australia, the world's top shipper. China's raw ore has an average iron content of 26 percent, according to Shi, compared with the global benchmark of 62 percent iron.

An oversupply of iron ore may last until 2020, Paul Gray, steel and iron ore markets analyst at Wood Mackenzie Ltd, told reporters in Sydney on Monday. Wood Mackenzie forecasts an average iron ore price of $101 a ton in the second-half of 2014 and $98 a ton in 2015, he said.

Morgan Stanley last week reduced its estimate for average iron ore prices to $105 a ton this year from an earlier forecast of $118 in May. Prices may average about $90 a ton in 2015, a drop of 21 percent from an earlier estimate, the bank said.

Producers in China face a rising challenge of cheaper supplies from Australia and Brazil that are spurring a global glut and hurting prices, according to Goldman Sachs Group Inc and Australia and New Zealand Banking Group Ltd. Australia's share of Chinese iron ore imports are forecast to increase to more than 60 percent by 2020, Wood Mackenzie forecast on Monday.

Guangdong Shunde Seko Machinery & Technology Co.,Ltd.www.gdseko.com
Lucy Xie
sevvice@gdseko.com
Skype:Lucy
Xie,SEKO Machinery

2015年11月12日星期四

What is Current developments of the China steel?

The Steel industry in China has developed over several decades into the world biggest.[1] China accounted for over 50% of world steel production in 2013. It has driven by rapid modernisation of its economy, construction, infrastructure and manufacturing industries.
As of 2015 the global steel market was weak with both Ukraine and Russia attempting to export large amounts of steel. Weak domestic demand in 2014 resulted in record exports of 100 million metric tons of steel by the Chinese steel industry.

Efforts by the Chinese Ministry of Environmental Protection under the Action Plan for the Prevention and Control of Air Pollution has resulted in pressure on steel mills in Linyi and Chengde to employ environmental protection measures on pain of being closed down.
Lucy Xie
sevvice@gdseko.com
Skype:Lucy
Xie,SEKO Machinery

Scrap steel export growth in the United States

SEKO Machinery Company just got the news from the SteelOrbis said that ,US scrap exports totaled 1,167,874 metric tons in September, which is a 14.7 percent increase from the 995,964 mt exported in August and a 0.77 percent increase from the 1,158,897 mt exported in September 2014. The value of scrap exports in September totaled $326.9 million, compared to $316.3 million in August and $488.2 million in September 2014. The top destinations for US scrap exports during the month were Turkey, with 456,909 mt (up 35.9 percent month-on-month); Mexico, with 154,597 mt (up 55.3 percent month-on-month); Korea, with 89,459 mt (down 47.9 percent month-on-month); India, with 79,963 mt (up 16.7 percent month-on-month); and Taiwan, with 76,227 mt (down 21.5 percent month-on-month).

Guangdong Shunde Seko Machinery & Technology Co.,Ltd.www.gdseko.com
Lucy Xie

sevvice@gdseko.com
Skype:Lucy Xie,SEKO Machinery
Suggested Reading:China Singles' Day

2015年11月8日星期日

October steel import permits increase in the US

Based on the Commerce Department’s most recent Steel Import Monitoring and Analysis (SIMA) data, the American Iron and Steel Institute (AISI) reported Wednesday that steel import permit applications for the month of October total 3,386,000 net tons (nt). This was a 15 percent increase from the 2,936,000 permit tons recorded in September and a 22 percent increase from the September preliminary imports total of 2,773,000 nt. Import permit tonnage for finished steel in October was 2,357,000, up 9 percent from the preliminary imports total of 2,168,000 in September. For the first ten months of 2015 (including October SIMA and September preliminary), total and finished steel imports were 34,227,000 nt and 27,478,000 nt, respectively, down 8 percent and 1 percent from the same period in 2014. The estimated finished steel import market share in October was 28 percent and is 30 percent year-to-date (YTD). Finished steel imports with large increases in October permits vs. the September preliminary included reinforcing bars (up 131 percent), heavy structural shapes (up 45 percent), wire rods (up 40 percent), sheets and strip all other metallic coated (up 40 percent), hot rolled sheets (up 27 percent) and standard pipe (up 22 percent). Products with significant year-to-date (YTD) increases vs. the same period in 2014 include reinforcing bar (up 50 percent), line pipe (up 26 percent), standard pipe (up 20 percent), tin plate (up 12 percent) and wire drawn (up 10 percent). In October, the largest finished steel import permit applications for offshore countries were for South Korea (364,000 nt, up 31 percent from September preliminary, Turkey (313,000 nt up 107 percent), Brazil (189,000 nt, up 72 percent), Japan (141,000, down 22 percent) and Taiwan (135,000 nt, up 103 percent). Through the first ten months of 2015, the largest offshore suppliers were South Korea (4,313,000 nt, down 6 percent from the same period in 2014), Turkey (2,503,000 nt, up 37 percent) and China (2,167,000, down 20 percent).

Guangdong Shunde Seko Machinery & Technology Co.,Ltd.www.gdseko.com
Lucy Xie

sevvice@gdseko.com
Skype:Lucy Xie,SEKO Machinery

Suggested Reading:EUROFER expects 2.5 percent growth in EU steel exports in 2016

EUROFER expects 2.5 percent growth in EU steel exports in 2016

The EU’s total steel exports fell four percent year on year over the first eight months of 2015, according to the Economic and Steel Market Outlook 2015-2016/Q4 2015 Report from the Economic Committee of the European Steel Association (EUROFER). EUROFER said that, as in the recent past, EU long steel product exports are dominated by rebar, wire rod and beams. The key destination for EU exports of long products remained Algeria. Other export destinations are Switzerland, the United States, Canada and Turkey. According to EUROFER, the outlook for 2016 is for a rather small increase in EU exports. Since 2011 exports have fluctuated in a fairly narrow bandwidth. Exports in the 2016 look set to remain within the same bandwidth. The sideways trend of annual export volumes to third countries reflects rather difficult business conditions in most export markets, particularly those for commodity products which suffer from immense price pressure. EURFOER expects EU exports to increase by 2.5 percent year on year in 2016.

Guangdong Shunde Seko Machinery & Technology Co.,Ltd.www.gdseko.com
Lucy Xie

sevvice@gdseko.com
Skype:Lucy Xie,SEKO Machinery

Suggested Reading:How to clean the fluid conveyance pipe