Hauj lwm lawm
Kev tsis
Rail Dog Spike Fastening System
CovRailway Dog Spikeyog ib qho -daim, L- zoo li tus forged steel fastener tsim los kom ruaj ntseg rail ties (sleepers) mus rau lub hauv paus ballast qauv los ntawm kev ncaj qha mechanical nkag mus thiab tshem tawm tuav. Tsim los ntawm nruab nrab- carbon steel qib suav nrog 45 # thiab 55 # nrog cov ntsiab lus carbon ntawm 0.42-0.60%, cov spikes ua tiav lub zog tensile ntawm 550-700 MPa thiab tawm lub zog ntawm 350-450 MPa los ntawm kev tswj kub forging thiab ua haujlwm hardening txheej txheem.
Technical Specifications:
| Txheej hom | Txoj kev thov | Thickness | Ntsev Txau Resistance | Kev Pabcuam Lub Neej (Ntiaj Teb) | Lub neej ua haujlwm (Marine) | Qhov zoo tshaj plaws Suited Ib puag ncig |
|---|---|---|---|---|---|---|
| Plain Oiled | Txau rau hauv xeb-cov roj tiv thaiv | <1 µm | 24-48 teev | 6–12 lub hlis | 1–3 lub hlis | Kev khaws cia hauv tsev, kev tiv thaiv ib ntus |
| Dub Oxide | Kub alkaline da dej | 1–3 µm | 48-72 hnub | 1-2 xyoos | 3–6 lub hlis | Kev nyab xeeb qhuav, kab thib ob |
| Mechanical Zinc | Plating txheej | 8–12 µm | 200-300 hnub | 10-15 xyoo | 3-5 xyoos | General hom phiaj, threaded daim ntaub ntawv |
| Kub-Dip Galvanizing | Molten zinc immersion | 50–80 µm | 1, 000+ teev | 50+ xyoo | 10-15 xyoo | Ntug hiav txwv, siab - av noo, txuas hniav |
| Dacromet 320 | Dip-nplua nuj txheej | 6–10 µm | 500-700 hnub | 25-30 xyoo | 8-12 xyoo | Suab puam, raug tshuaj lom neeg |
| Zinc -Nickel (ZnNi) | Electroplating | 8–15 µm | 800-1,000 teev | 30-40 xyoo | 12-18 xyoo | Offshore, qhov chaw ib puag ncig |
| Sherardizing | Zinc plua plav diffusion | 15–30 µm | 600-800 teev | 30-40 xyoo | 10-15 xyoo | European railway specifications |
Installation & Maintenance Perspective:
- Tswj Cooling Profiles:Cov spikes tsim los ua kom txias txias hauv cov thawv insulated (cov nyhuv annealing) txhawm rau txo cov kev ntxhov siab sab hauv thiab ua tiav cov tawv tawv ntawm 85–95 HRB thoob plaws hauv tus ntoo khaub lig-section.
- Automated Dimensional Inspection:High -Speed optical systems ntsuas qhov tseem ceeb tsis xws li shank dav (± 0.4mm), lub taub hau qhov siab, taw tes kaum (feem ntau 30-35 degree), thiab ncaj ntawm tus nqi siab tshaj 120 spikes ib feeb.
- Hardness Verification:Rockwell B- ntsuas qhov ntsuas ntawm cov qauv tsim tau lees paub 85–95 HRB ntau yam, ua kom muaj zog txaus yam tsis muaj nkig uas tuaj yeem ua rau tawg thaum muaj kev cuam tshuam tsav tsheb.
Kev Saib Xyuas & Kev Pom Kev Ua Haujlwm
- Kev sib txhuam tiam:Lub square shank (14-16mm) tsim plaub qhov sib txawv thaj chaw nyob rau hauv lub voj voog pilot qhov, tsim kev sib txhuam tsis kam 30-40% siab tshaj qhov sib npaug puag ncig shanks vim lub kaum sab xis siab concentration.
- Lub caij ntuj no Moisture Effect:Hauv kev pabcuam, ntoo ya raws caij tsheb kauj vab ua rau cov fibers swell nyob ib ncig ntawm lub ntsej muag thaum lub sij hawm ntub dej thiab kev cog lus thaum lub sij hawm qhuav- qhov kev txav ntawm lub ntuj no ua rau muaj kev cuam tshuam cov khoom siv hauv thawj 1-2 xyoo ntawm kev pabcuam.
- Creep Resistance:Raws li kev ruaj ntseg kev vibration loading, aub spikes pom logarithmic load so, poob kwv yees li 10-15% ntawm qhov pib clamping quab yuam nyob rau hauv thawj xyoo ua ntej stabilizing- tus yam ntxwv yuav tsum tau ncua sij hawm re- tsav tsheb ("spiking down") thaum lub sij hawm tu.
Gnee Professional tsum
Cim npe nrov: Tuam Tshoj railroad dev spikes manufacturers, lwm tus neeg, Hoobkas
