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  • Anchor Bolt grouting procedures

    Anchor Bolt grouting procedures

    This guide addresses proper procedures for the anchoring of embedments (bolts,threaded rod, rebar) into concrete. Typically, a structural engineer evaluates several factors before proceeding with an anchor bolt grout project. Anchor strength and long term performance are dependent on a variety of...
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  • Swedish Customer Visited Anyang Longteng Heat Treatment Material Co.,Ltd

    Swedish Customer Visited Anyang Longteng Heat Treatment Material Co.,Ltd

    Yesterday, Swedish Customer visited my beautiful factory LT. Our products quality has been proven to be highly acceptable in European market.  Mr. Olsen use to be the director  of Asia-Pacific in SSAB. After retirement, he began to participate in many projects. As we all know, wind power electric...
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  • Pre-stressed Grout Rock Bolt Advantages – Anyang Longteng Heat Treatment Material Co.,Ltd

    Pre-stressed Grout Rock Bolt Advantages – Anyang Longteng Heat Treatment Material Co.,Ltd

    Anyang Heat Treatment Material Co.,Ltd manufacture prestressed threaded bar-Rock anchor bolts. Threaded bar bolt is composed of screw thread steel bar, high strength washer plate, casting damping nut, yield tube and other accessories. According to the structure, bolt has two types: rib rebar bolt...
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  • How much wind was in Europe’s electricity?

    How much wind was in Europe’s electricity?

    Europe is a global leader in wind energy. According to the date from the WIND EUROPE,  wind energy was almost 20% of Europe’s electricity on Sunday. 67% in Portugal, and more than 20% in Spain,Ireland, Germany, Lithuania, Sweden,Estonia. Last year wind energy covered 11.6% of EU power deman...
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  • Anchor Bolts for Brick Masonry

    Anchor Bolts for Brick Masonry

    Anchor bolts are used in brick masonry extensively to make structural attachments and connections. To date, a limited amount of information has been available to aid designers in the selection and design of anchor bolts in brick masonry. This technical notes addresses the types of anchor bolts av...
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  • TENSILE TEST – PRODUCE HIGH STRENGTH ANCHOR BOLT (DECRIPTION & VEDIO)

    TENSILE TEST – PRODUCE HIGH STRENGTH ANCHOR BOLT (DECRIPTION & VEDIO)

    Anyang Longteng Heat Treatment Co.,Ltd are professional high duty steel anchor bolt manufacture and exporter. We got the advanced technology to produce anchor bolt, high strength fastener, rock bolt, hold down bolt, threaded rods, anchor cages, etc.  Below is the main process to produce the ancho...
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  • Fine Grinding+ Thread Rolling Process-Produce high strength anchor bolt (Decription & Vedio)

    Fine Grinding+ Thread Rolling Process-Produce high strength anchor bolt (Decription & Vedio)

    Fine Grinding:                                                                                                                                                         Grinding the front end, make sure that after the thread is formed, the thread accuracy should be 6g.   Rod Diameter          ...
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  • Underground Mining Tunnel High Strength Rock Anchor bolt

    Underground Mining Tunnel High Strength Rock Anchor bolt

    Underground Mining Tunnel High Strength Rock Anchor Bolt is a self drilling rock grouting anchor, is a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations. Our anchor bolts/rock bolts consists of anchor but, anchor...
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  • Underground Mining Tunnel High Strength Rock Anchor Bolt

    Underground Mining Tunnel High Strength Rock Anchor Bolt

    Rebar Anchor Rod                                                                                                                                          Rebar Anchor Rod is widely used in coal mine, railway, water and electricity, etc.. The full strength of the whole length of the anchor bolt is...
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  • Steel Plates standard and grades from LT

    Steel Plates standard and grades from LT

    We are dealing below steel grades and standards: 1.Abrasion/Ballistic Steel;HARDOX400, HARDOX450, HARDOX500, XAR400-500, raex400, raex450, raex500, DILLIDUR400V, DILLIDUR500V, QUARD400, QUARD500, FORA400, JFEEH360, JFEEH400, JFEEH500, FORA500, CREUSABRO4800, CREUSABRO8000 2.Wear resistant s...
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  • Equivalent standard and grade of abrasion/wear resistant steels

    Equivalent standard and grade of abrasion/wear resistant steels

    Steel Standard Steel Grades Sweden HARDOX400 HARDOX450 HARDOX500 HARDOX600 SB-50 SB-45 Germany XAR400 XAR450 XAR500 XAR600 Dillidur400V Dillidur500V China NM360 NM400 NM450 NM500     Finland RAEX400 RAEX450 RAEX500       Japan JFE-EH360 JFE-EH450 JFE-EH500 WEL-HARD400 WEL-HARD500...
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  • Pre-Thread Diameter

    Pre-Thread Diameter

    This chart apply for our threaded round bar products, and fastener products, for example anchor bolts, rock bolts, stud bolts, anchor cages. If any doubt or questions, our engineers are always pleased to help. [email protected] Pre-Thread Diameter             Unit:mm Norminal Diam...
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  • Machanical rock anchors

    Machanical rock anchors

    Most popular mechanical anchor system is expansion shell anchors. A hole is drilled in the rock and the rock bolt assembly is inserted. Then the tensile force(P) is applied. When the force is applied, the cone would try to move to the right side. The movement of the cone would expand the two wedg...
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  • Rock bolt For Mining/ Tunnel/ Slop Support

    Rock bolt For Mining/ Tunnel/ Slop Support

    Name Rock bolt For Mining/ Tunnel/ Slop Support Specifications  Specification & Standard GB/T 20065-2006  MT 146.2-2011 YB/T4363-2014 ISO6934-5:1991 Dn 16-32mm Rp0.2/MPa 500-800 Rm/MPa 500-1000 A% 15-22 Material High-performance steel AKv/J...
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  • INCOMING INSPECTION STANDARD FOR NUTS

    INCOMING INSPECTION STANDARD FOR NUTS

     NUTS 1 Chemical composition test Within a specified time,incoming nuts materials of grade 35CrMo shall be retest, and results must be in accordiance with TABLE 1.   TABLE 1-1 Chemical composition of nuts(mass fraction)) /% Grade C Si Mn Cr Mo P S 35CrMo 0.32~0.40 0.17~0.37 0...
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  • Depth of Decarburization – Wind Turbine Foundation Anchor Bolt Inspection in Anyang Longteng Heat Treatment Material Co.,Ltd

    Depth of Decarburization – Wind Turbine Foundation Anchor Bolt Inspection in Anyang Longteng Heat Treatment Material Co.,Ltd

    (1)Decarburization of anchor bolts shall be performed by Metallographic  method according to GB/T3098.1 regulations.  (2)Decarburization of threaded parts shall be performed by metallographic method according to GB/T224-2008 “Determination of depth of decarburization of steels”.  ...
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  • LT’s Willing to Help More Students to Have Better Study Environment

    LT’s Willing to Help More Students to Have Better Study Environment

    At this autumn, LT attend to the charity activity, helping students to college. Hope more students who lives in poor families could better educated. This charity activity is on the target of helping more poor students before they attend to school in September. Mostly students are just graduate fr...
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  • New hot-rolled continuous pipe rolling mill bought by LT

    New hot-rolled continuous pipe rolling mill bought by LT

      On 2018-08-08, Our company Anyang Longteng Heat Treatment Material Co.,Ltd and Taiyuan Heavy Industry Co.,Ltd sign a contract for purchasing φ114 hot-rolled continuous tube rolling mill, including design, manufacture, delivery and services to out company. Our chairman Mr. Feng Dibao, ge...
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  • LT ——Inspection standard of key procedure for high- strength heat-treated anchor bolt

    LT ——Inspection standard of key procedure for high- strength heat-treated anchor bolt

    1、HEAT TREATMENT PROCEDURE INSPECTION热处 1.1 Heat-treatment procedure inspection refers to tests on steel round bars, in the duration of heat treatment production line, which, mechanical properties, hardness, impact absorb energy at low temperature tests are the mainly part. 3.2 Sampling: accor...
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  • Dimension and tolerances of NUTS and Washers – Wind tower foundation anchor bolt _ Anyang Longteng

    Dimension and tolerances of NUTS and Washers – Wind tower foundation anchor bolt _ Anyang Longteng

    Dimension and tolerance inspection shall be in accordance with GB/T6170-2000 “Hexagon regulat nuts(style 1)”. See Table 3 thickness m is symboled and described. Table 3 Thickness of nuts Specification of nuts M30 M36 M42 M48 M56 M64  P 3.5 4 4.5 5 5.5 6 Q/AYLT 06-201...
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  • INSPECTION STANDARD FOR APPEARANCE INSPECTION OF RAW MATERIALS—WIND TURBINE FOUNDATION ANCHOR BOLTS

    INSPECTION STANDARD FOR APPEARANCE INSPECTION OF RAW MATERIALS—WIND TURBINE FOUNDATION ANCHOR BOLTS

      The surface quality of steel round bar shall conform to GB/T3077-2015 “ALLOY STRUCTURE STEEL”-6.10.1 The surface of steel materials used for pressure processing    The surface of steel materials used for pressure processing shall be free of crack, scar, folding or sundry ...
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  • Raw Material Purchase Technical Requirements of High Strength Anchor Bolt Products

    Raw Material Purchase Technical Requirements of High Strength Anchor Bolt Products

    1 SCOPE This technical requirements specifies dimensions, shape, weight, tolerances, technical requirements, test methods, inspection regulations, packaging, marking and supplier quality assuance, of the hot-rolled round bars – LT anchor bolt products’ raw materials. This technical re...
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  • LT Heat Treated High Duty Rock Bolt Advantages

    LT Heat Treated High Duty Rock Bolt Advantages

    1. Ultra high strength, high impact energy rock bolt —— Impact absorbing energy advanced world levels Normal 600MPa grade rock bolt’s impact absorbing energy Akv is around 60J, but our LT products high strength rock bolt’s impact absorbing energy Akv ≥180J, which is very ...
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  • PACKAGING – WIND TOWER ANCHOR BOLT (DECRIPTION & VEDIO)

    PACKAGING – WIND TOWER ANCHOR BOLT (DECRIPTION & VEDIO)

    Packaging method is always one of the most important part of purchasing, especially for the wind turbine foundation cage anchor bolt. After finish main production part, we need to make full pole packaged, in order to enlarge the products life span and maintain their good property and performance....
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