AREMA 90 ARA-A rel keluli

AREMA 90 ARA-A steel rail is used for Americas area, kita boleh menghasilkannya mengikut pesanan, MOQ adalah 500 Tan, panjang 12-25m, material SS or HH.

The AREMA 90 ARA-A steel rail is a type of railroad track that is widely used in the United States. This rail meets the standards set forth by the American Railway Engineering and Maintenance-of-Way Association (AREMA), which is an industry group that establishes technical specifications for railway infrastructure.

The 90 ARA-A steel rail is a type of heavy-duty track designed to withstand the high loads and stresses associated with freight trains. It is typically used in mainline track applications where heavy traffic volumes and high speeds are common. Rel ini dihasilkan daripada keluli berkualiti tinggi, which provides excellent strength and durability.

The rail profile is designed to maximize stability and minimize wear and tear. The bottom of the rail is shaped like an inverted T, which provides a wide base for stability and helps distribute the weight of the train more evenly across the track. The top of the rail has a flat surface that provides a smooth ride for the train wheels.

The AREMA 90 ARA-A steel rail is available in various lengths and weights to suit different applications. It is typically installed using a series of spikes or bolts that hold the rail in place. The rail is also designed to be compatible with a range of other track components, including rail joints, tie plates, dan sistem pengikat.

One of the key advantages of the AREMA 90 ARA-A steel rail is its durability. The rail is designed to last for many years with minimal maintenance, menjadikannya pilihan yang kos efektif untuk pengendali kereta api. The rail is also resistant to wear and tear, which helps reduce the need for expensive repairs and replacements.

Sebagai tambahan kepada ketahanannya, the AREMA 90 ARA-A steel rail is also designed for safety. The rail profile and fastening systems are engineered to provide a stable and secure foundation for trains to travel on. This helps reduce the risk of derailments and other accidents, which can be costly both in terms of human life and financial resources.

Keseluruhan, the AREMA 90 ARA-A steel rail is an important component of railroad infrastructure in the United States. It is designed to meet the high demands of heavy freight traffic and is engineered for durability and safety. Railway operators can rely on the AREMA 90 ARA-A steel rail to provide a stable and secure foundation for their trains, ensuring reliable and efficient transportation of goods across the country.

PENGGUNAAN REL	JENIS REL	STANDARD
Rel untuk Keretapi	43 kereta api kg/m, 50 kereta api kg/m, 60 kereta api kg/m, 75kereta api kg/m, 60Kereta api N, 75Kereta api N	TB/T2344-2012, TB/T3276-2011
	Kereta api P50/Rel R50, Kereta api P65/Kereta api R65	GOST-R51685
	Kereta api S49, Kereta api UIC54, Kereta api UIC60	UIC860
	Kereta api JIS50N, Kereta api JIS60	JIS E1101
	Kereta api AS50, Kereta api AS60, Kereta api AS68	AS1085, BHP RT STD
	90Rel RA, 100Rel RE, 115Rel RE, 132Rel RE, 136Rel RE	AREMA
	Kereta api TR45, Kereta api TR50, Kereta api TR57, Kereta api TR68	ASTM
	Kereta api BS75A, Kereta api BS90A, Kereta api BS100A	BS11 STANDARD
	49Kereta api E1, 50Kereta api E2, 54Kereta api E1, 60Kereta api E1, 60Kereta api E2	EN 13674-1
Tukar Rel	50Kereta api AT1, 60Kereta api AT1, 60Kereta api AT2, 60Kereta api TY1	TB/T3109-2013
Rel Kren	A45, A55, A65, A75, A100, A120, A150	DIN536
	Kereta api QU70/Kereta api KP70, Kereta api QU80/Kereta api KP80, Rel QU100/Rel KP100, Rel QU120/Rel KP100, Rel CR175	YB/T5055-2014 ASTM A759-2000
Rel Grooved	59Rel R2, 60Rel R2	EN 14811:2006

 

Standard EN 13674 - 1:2003 terdiri daripada dua bahagian utama:

− ujian kelayakan dan ujian penerimaan

Ujian kelayakan adalah beberapa ujian lain yang sebelum ini dijalankan, sebagai contoh, ketangguhan patah. Ujian penerimaan mencirikan sifat ujian yang ditetapkan, yang memastikan pengeluaran rel berkualiti tinggi, dan keperluan ujian pentadbiran kereta api.

Kualiti rel adalah berdasarkan nilai kekerasan yang diukur, di mana mereka memperkenalkan label baru untuk rel keluli.

Ujian kelayakan

Ujian kelayakan mesti dijalankan sekurang-kurangnya satu dalam lima tahun dan utama

perubahan dalam teknologi, rel pengeluaran. Tekanan sisa ujian tambahan dibawa

keluar pada semua jenis rel keluli setiap dua tahun maksimum, dengan syarat bahawa membujur

kadar terikan di rel boleh berjumlah sehingga 250 Mpa.

Peperiksaan kelayakan yang ditetapkan adalah seperti berikut:

− ketangguhan patah

− keletihan retak kadar pertumbuhan

− ujian keletihan

− tekanan sisa dalam kaki kereta api

− variasi garis tengah

− kekuatan tegangan dan pemanjangan

− pengasingan

− keperluan kelayakan lain

Ujian penerimaan

Dalam ujian penerimaan dijalankan satu siri ujian makmal seperti:

− komposisi kimia (kandungan maksimum unsur-unsur berikut: H, O, Al, V, Unsur N dan oligo)

− mikrostruktur (meningkatkan x 500)

− darjah lapisan hangus decarburizing (dibenarkan sehingga 0.25 Mm)

− kesucian keluli (terutamanya kehadiran oksida)

− makrostruktur (Ujian Baumann)

− kekerasan

− kekuatan tegangan

Rel ujian penerimaan lain adalah:

− toleransi dimensi

− kriteria (templat kawalan)

− keperluan pemeriksaan / toleransi untuk kualiti dalaman dan kualiti permukaan

Keadaan dalaman diperiksa ultrasound dalam kawalan proses berterusan, dan termasuk sekurang-kurangnya 70% kepala dan sekurang-kurangnya 60% Web.

- Standard of UIC 860 V: 1996 - ditetapkan empat jenis rel keluli pearlite dalam julat kekuatan tegangan dari 700 Untuk 1300 Mpa.

- Standard EN 13674 - 2003, menyediakan tujuh jenis kekerasan keluli pearlite dalam julat 200 Untuk 390 HBV, jenis keluli mengikut EN 13674, berdasarkan nilai-nilai kekerasan (R 200, R 220, R 260, R 260 Mn, 320 Cr, 350 HT, 350 LHT).