AREMA 90 Reli ya chuma ya ARA-A

AREMA 90 ARA-A steel rail is used for Americas area, Tunaweza kuizalisha kwa utaratibu, MOQ ni 500 Tani, urefu wa mita 12-25, 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.

ya 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. The rail is manufactured from high-quality steel, 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, na mifumo ya kufunga.

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, making it a cost-effective choice for railway operators. The rail is also resistant to wear and tear, which helps reduce the need for expensive repairs and replacements.

In addition to its durability, 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.

Jumla, 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.

MATUMIZI YA RELI	AINA YA RELI	KIWANGO CHA
Reli kwa Reli	43 reli ya kg /m, 50 reli ya kg /m, 60 reli ya kg /m, 75reli ya kg /m, 60N reli, 75N reli	TB/T2344-2012, TB/T3276-2011
	Reli ya P50/Reli ya R50, Reli ya P65/Reli ya R65	GOST-R51685
	Reli ya S49, Reli ya UIC54, Reli ya UIC60	UIC860
	Reli ya JIS50N, Reli ya JIS60	JIS E1101
	Reli ya AS50, Reli ya AS60, Reli ya AS68	AS1085, BHP RT STD
	90Reli ya RA, 100Reli ya RE, 115Reli ya RE, 132Reli ya RE, 136Reli ya RE	AREMA
	Reli ya TR45, Reli ya TR50, Reli ya TR57, Reli ya TR68	ASTM
	Reli ya BS75A, Reli ya BS90A, Reli ya BS100A	KIWANGO CHA BS11
	49Reli ya E1, 50Reli ya E2, 54Reli ya E1, 60Reli ya E1, 60Reli ya E2	EN 13674-1
Badilisha Reli	50Reli ya AT1, 60Reli ya AT1, 60Reli ya AT2, 60Reli ya TY1	TB/T3109-2013
Reli ya Crane	A45, A55, A65, A75, A100, A120, A150	DIN536
	Reli ya QU70/Reli ya KP70, Reli ya QU80/Reli ya KP80, Reli ya QU100/Reli ya KP100, Reli ya QU120/Reli ya KP100, Reli ya CR175	YB / T5055-2014 ASTM A759-2000
Reli ya Grooved	59Reli ya R2, 60Reli ya R2	EN 14811:2006

 

Standard EN 13674 - 1:2003 Ina sehemu kuu mbili:

− Mtihani wa kufuzu na vipimo vya kukubalika

Vipimo vya kufuzu ni baadhi ya vipimo vingine ambavyo awali vilifanyika, kama kwa mfano, Kuvunjika kwa ugumu. Vipimo vya kukubalika vinaonyesha mali ya vipimo vilivyoagizwa, ambayo inahakikisha uzalishaji wa reli zenye ubora wa hali ya juu, na mahitaji ya upimaji wa utawala wa reli.

Ubora wa reli unategemea maadili yaliyopimwa ya ugumu, ambayo walianzisha lebo mpya za reli za chuma.

Vipimo vya kufuzu

Upimaji wa sifa lazima ufanyike angalau moja katika miaka mitano na kubwa

Mabadiliko katika teknolojia, Reli za uzalishaji. Mafadhaiko ya ziada ya kupima mabaki yabebwa

nje juu ya aina zote za reli za chuma kila baada ya miaka miwili upeo, ilimradi kwamba longitudo

Kiwango cha shida katika reli kinaweza kufikia hadi 250 MPa.

Mtihani wa kufuzu uliowekwa ni ufuatao:

− kuvunjika kwa ugumu

− Kiwango cha ukuaji wa uchovu

− Upimaji wa uchovu

− Mkazo wa mabaki katika mguu wa reli

− tofauti ya mstari wa katikati

− nguvu ya tensile na elongation

− ubaguzi

− mahitaji mengine ya kufuzu

Vipimo vya kukubalika

Ndani ya upimaji wa kukubalika hufanywa mfululizo wa vipimo vya maabara kama vile:

− muundo wa kemikali (maudhui ya juu ya vipengele vifuatavyo: H, O, Al, V, Elementi za N na oligo)

− microstructure (Kuongezeka kwa X 500)

− shahada ya decarburizing charred layer (inaruhusiwa hadi 0.25 mm)

− usafi wa chuma (Hasa uwepo wa oksidi)

− macrostructure (Mtihani wa Baumann)

− ugumu

− nguvu ya tensile

Reli nyingine za upimaji wa kukubalika ni:

− uvumilivu wa vipimo

− vigezo (template ya kudhibiti)

− Mahitaji ya ukaguzi / uvumilivu kwa ubora wa ndani na ubora wa uso

Hali ya ndani inachunguzwa ultrasound katika udhibiti wa mchakato endelevu, na inajumuisha angalau 70% ya kichwa na angalau 60% Wavuti.

- Kiwango cha UIC 860 V: 1996 - imeagizwa aina nne reli ya chuma ya pearlite katika anuwai ya nguvu ya tensile kutoka 700 kwa 1300 MPa.

- Standard EN 13674 - 2003, hutoa aina saba za ugumu wa chuma cha pearlite katika anuwai 200 kwa 390 HBV, aina ya chuma kulingana na EN 13674, kulingana na maadili ya ugumu (R 200, R 220, R 260, R 260 Mn, 320 Cr, 350 HT, 350 LHT).