Sɛ́ ade titiriw a ɛyɛ den wɔ keteke a wɔde kyekyere nneɛma ho nhyehyɛe no mu no, wɔde amanaman ntam keteke kwan so nhama a ɛyɛ den a wɔde kyekyere nneɛma ho no ayɛ gyinapɛn a atwa nneɛma atitiriw anan ho ahyia: nneɛma, adwumayɛ, sɔhwɛ, ne dwumadie. Nhyehyɛeɛ no nyinaa de nhyehyeɛ a ɛfa "amanaman ntam gyinapɛn a wɔgye tom a ɛdi anim, ɔmantam gyinapɛn a ɛde nsɛm a ɛkɔ akyiri ma, ne ɔman gyinapɛn a ɛsakra ma tebea ahodoɔ" kyerɛ. Wɔn adwuma titiriw ne sɛ wɔbɛhwɛ sɛnea wɔyɛ, ne yɛ, wɔsɔ hwɛ, ne sɛnea wɔde elastic clips di dwuma, ahwɛ ahu sɛ wobetumi asesa, ahobammɔ, na wɔatumi atra hɔ akyɛ wɔ aman ahorow ne keteke akwan so, a ɛbɛkata keteke tebea ahorow a keteke kwan a wɔtaa de di dwuma, a emu yɛ duru-haul, ne ahoɔhare kɛse-ka ho so. Mprempren, wɔakyekyɛ amanaman ntam keteke kwan so elastic clip gyinapɛn ahorow mu titiriw ayɛ no akuw abiɛsa: gyinapɛn ahorow a wogye tom wɔ amanaman ntam, gyinapɛn ahorow a wɔaka abom wɔ ɔmantam mu, ne gyinapɛn ahorow a ɛfa aman akɛse ho pɔtee. Saa gyinapɛn ahorow yi boa wɔn ho wɔn ho, na emu biara wɔ n’ankasa adwene, na wɔaka abom ayɛ amanaman ntam gyinapɛn nhyehyɛe a edi mũ.
1. Amanaman Ntam Ahyehyɛde a Ɛhwɛ Gyinapɛn So (ISO) a ɛfa gyinapɛn ahorow ho
1. Amanaman Ntam Ahyehyɛde a Ɛhwɛ Gyinapɛn So (ISO) a ɛfa gyinapɛn ahorow ho
Ade titiriw a wɔde wɔn adwene si so ne nneɛma a wɔsɔ hwɛ wɔ elastic strips ne fastener system sɔhwɛ, a ɛyɛ nnyinaso ma wiase nyinaa elastic strip a wɔyɛ ne sɔhwɛ. Nea ɛka ho titiriw ne:
- ISO 22074 series: "Railway Applications-Tracks-Fastening System Test Methods" ma sɔhwɛ akwan ne atemmuo gyinapɛn a ɛfa nsɛnkyerɛnneɛ titire te sɛ clip nhyɛsoɔ, lift stiffness, ɔbrɛ nkwa, ne insulation adwumayɛ mu da hɔ. Ɛyɛ core general specification ma clip adwumayɛ nokwaredi.
- ISO 5948: "Spring Steel Testing Standard" kyerɛ nnuru a ɛwɔ mu, mfiridwuma mu su, metallographic nhyehyɛe ne ahwehwɛde afoforo a ɛwɔ spring steel a wɔde yɛ spring bars no mu, na ɛma gyinapɛn a ɛyɛ biako ma nneɛma a wɔpaw spring bars.
Nneɛma a Wɔde Yɛ Nkyerɛkyerɛmu
2. Amanaman Ntam Keteke Nkabom Kuo (UIC) gyinapɛn a ɛfa ho Wɔayɛ no titire ama keteke kwan no afã ahodoɔ, saa gyinapɛn yi di keteke akwan adwumayɛ ahiadeɛ ankasa ho dwuma yie na ɛyɛ nnyinasoɔ titire ma amanaman ntam keteke kwan so adwumayɛkuo. Wɔn mu titiriw ne: - UIC 860 series: "General Technical Conditions for Rail Fasteners", a ɛka nhyehyɛe nnyinasosɛm ahorow, dimensional tolerances, surface treatment, ne installation ahwehwɛde ahorow a ɛfa elastic clips ne keteke kwan ne dade pads ntam no mu da hɔ, na ɛma ahwehwɛde ahorow a ɛwɔ elastic clips ne rails ne iron pads ntam no mu da hɔ, na ɛfa amanaman ntam keteke akwan ahorow ho. - UIC 712-3: "Specification for Fatigue Testing of Rail Fasteners" twe adwene si ɔbrɛ nkwa sɔhwɛ kwan a wɔfa so yɛ elastic clips, a ɛhwehwɛ sɛ elastic clips no nkyerɛ mpaapaemu anaa huammɔdi biara wɔ cyclic loads pɔtee bi ase de hwɛ hu sɛ adwumayɛ mu ahotoso.
3. Europa gyinapɛn ahorow (EN) .
Keteke akwan a ɛwɔ Europa aman mu no wɔ abusuabɔ kɛse na ɛwɔ gyinapɛn ahorow a ɛkorɔn a ɛyɛ pɛ. Gyinapɛn titiriw no ne amanaman ntam gyinapɛn ahorow a wogye tom anaasɛ wɔtew mu yɛ pɛ na ɛfa Europa aman ne aman a wogye Europa keteke ahorow tom no ho. Nea ɛka ho titiriw ne:
- EN 13481 series: "Railway Applications-Tracks-Adwumayɛ ho Ahwehwɛdeɛ ma Fastener Systems" yɛ gyinapɛn titire ma Europa clips na wɔakyekyɛ mu mmiɛnsa: Ɔfa 1 (ahwehwɛdeɛ a ɛwɔ hɔ nyinaa), Ɔfa 2 (ballasted track fasteners, a ɛma adwumayɛ ho nsɛnkyerɛnneɛ a ɛwɔ models a wɔtaa de di dwuma te sɛ Class C clips), ne Ɔfa 3 mu da hɔ (ballastless track fasteners, a ɛfata ma keteke a ɛde ahoɔhare kɛse - ne nhama a emu yɛ duru-).
- Gyinapɛn a ɛboa: German DIN gyinapɛn (DIN 17221 "Spring Steel Specification", DIN EN 13481, a ɛne Europa gyinapɛn yɛ pɛ), Britania BS gyinapɛn (BS EN 13481, a ɛne Europa gyinapɛn yɛ pɛ), a ɛsan siesie nneɛma a wɔyɛ ne sɔhwɛ ho nsɛm.
4.North American Standard Ɛnam sɛ Amerika ne Canada keteke akwan yɛ ade titiriw nti, ɛdannan ne ho ma ɛne line su a ɛwɔ adesoa a emu yɛ duru ne adesoa akɛse a ɛwɔ aksel mu wɔ Amerika Atifi fam no hyia. Gyinapɛn ahorow no twe adwene si mfaso ne sɛnea ɛtra hɔ kyɛ so. Titiriw no, nea ɛka ho ne: - AREMA gyinapɛn (American Railway Engineering and Maintenance Association): Ti 3 "Track Structure" a ɛwɔ "Railway Engineering Manual" mu no ma buckling pressure, ɔbrɛ nkwa, ne nneɛma a wɔhwehwɛ wɔ elastic bars no mu mu da hɔ. AISI 6150 spring steel na wɔtaa de di dwuma, na ɛkyerɛ sɛ ɛsɛ sɛ buckling pressure a ɛwɔ elastic bars no mu no du 10-15kN, na ɛnsɛ sɛ ɔbrɛ nkwa no sua sen 3×106 mpɛn. - ASTM gyinapɛn: ASTM A232 "Spring Steel Specification" ne ASTM E466 "Fatigue Test Method" de ma mfiridwuma mmoa a wɔde ma ahohuru bere mu nneɛma sɔhwɛ ne adwumayɛ sɔhwɛ, na wɔde di dwuma de ka AREMA gyinapɛn ahorow ho. ### 3. Ɔman titire-gyinabea pɔtee (a wɔayɛ no sɛnea ɔman no tebea te, nneɛma a ɛda nsow) Ɔman biara ka n’ankasa keteke kwan so adwumayɛ su ahorow (te sɛ keteke ahoɔhare a ɛkɔ soro-ahoɔhare, aksel adesoa a emu yɛ duru, keteke kwan su ho nkyerɛkyerɛmu) bom na ɔhyehyɛ n’ankasa gyinapɛn ahorow a egyina amanaman ntam ne ɔmantam gyinapɛn ahorow so de ma mfiridwuma mu ahwehwɛde ne nhwɛso pɔtee a ɛfa ho no mu da hɔ nnua a wɔtaa de di dwuma wɔ ɔman no mu de hwɛ hu sɛ edi n’ankasa nhama ahiade ho dwuma.
5. German gyinapɛn (Vossloh nhyehyɛe a ɛboa) Wogyina German Vossloh fastener nhyehyɛe so ayɛ elastic strip gyinapɛn soronko bi, a ɛwɔ snap pressure grading, a ɛfata ma keteke akwan wɔ Europa aman ne aman pii mu wɔ wiase nyinaa: - Core standards: EN 10089 (Spring Steel Specification), DIN 17221, ma mfiridwuma mu ahwehwɛde ahorow no mu da hɔ ma SKL series spring bars (SKL 12/15/18), a emu bi ne SKL 15 spring bars wɔ buckle pressure a ɛyɛ 15kN, ɛfata ma UIC60 rails, na ɛyɛ nea wɔde di dwuma kɛse. 6. British Standard (Pandrol system supporting) British Pandrol fastener system no twe adwene si ahwehwɛde ahorow a emu yɛ duru-duty ne ntɛm a wɔde si hɔ so. Gyinapɛn titiriw no ne BS EN 13481. Nkyeremu a wɔada no adi no bi ne PR series (nhyɛso a ɛkɔ soro a ɛbɔ, a ɛfata ma keteke akwan a emu yɛ duru-), Fast Clip nhyehyɛe (klip a wɔadi kan aboaboa ano, a ɛboa mfiri a wɔde si hɔ), ne Nabla nkyekyem (blade-nsusuwii a wɔayɛ, a ɛfata ma dade a wɔde gyina akyi mprɛte pɔtee bi).
7. Other country/region standards - Japan: JIS E 1115 "Track Fastener Standard", featuring the E-type clip series, suitable for Japan's narrow gauge and Shinkansen high-speed rail lines, focusing on lightweight and elastic adaptation. - Russia: GOST 31385 "Technical Conditions for Railway Fasteners", a wɔayɛ no sɛnea Russiafo broad gauge lines, ma nneɛma, kɛse ne anti-corrosion ahwehwɛde ahorow a ɛwɔ elastic strips mu mu da hɔ, na ɛne Russia gyinapɛn keteke ne dade akyi mprɛte hyia. - Australia: AS 1085.14 "Track Fastener Standard", a wɔayɛ no sɛnea Australia heavy-haul keteke akwan no, wɔ ahwehwɛde a ɛkorɔn wɔ ɔbrɛ nkwa ne corrosion a ɛko tia elastic bars.
8. Chinafo Gyinapɛn (TB/T Series) .
Esiane sɛ wɔayɛ nsakrae wɔ ahiade ahorow a ɛsono China keteke akwan a wɔtaa de di dwuma, ɛde ahoɔhare kɛse, ne nea emu yɛ duru-haul ho nti, wɔayɛ keteke kwan a ɛyɛ den gyinapɛn nhyehyɛe a edi mũ, a nea ɛka ho ne:
- TB/T 3065 series: Railway Fastener Springs (a ɛtwa toɔ TB/T 3065-2020), a ɛkata springs a wɔtaa de di dwuma te sɛ Type I, Type II, ne Type III so, na ɛkyerɛ ahoɔden a wɔde kyekyere, spring akwantuo, ne nneɛma a wɔhwehwɛ ma spring ahodoɔ (a ɛtaa yɛ 60Si2MnA ne 60Si2CrA spring steel).
- TB/T 3395.3-2015: Gyinapɛn soronko ma keteke kwan so ahoɔhare kɛse-ahoɔhare elastic clips, a ɛde ahwehwɛde a ɛkorɔn to anim ma elasticity, ɔbrɛ nkwa ne insulation adwumayɛ a ballastless track elastic clips, na ɛfata ma keteke akwan a ahoɔhare kɛse a ahoɔhare 350km/h ne nea ɛboro saa.
Wɔ nnwuma mu no, keteke kwan adwuma pii de UIC ne EN gyinapɛn di kan de hwɛ hu sɛ ɛbɛtwam -ahyeɛ ahyia. Ɔman gyinapɛn ahorow de akwankyerɛ foforo ma wɔ adwumayɛ tebea pɔtee bi ho. Sɛ yɛka ne nyinaa bom a, elastic clip standardization ka nneɛma a wɔpaw, structure design, ne ɔbrɛ adwumayɛ ho, na ɛma fapem a ɛyɛ den ma keteke kwan a ahobammɔ wom na wotumi de ho to so wɔ wiase nyinaa.
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