Tushen PPGI: yaya za a zaɓi mai kyau?

Menene PPGI kuma Yaya Ta Daga Galvanized Iron Mai Bambanci?

PPGI coils basically shine na zinc coated steel da keke biyu na organic coating da ake amfani da su a cikin jarida na roll coating. Traditional galvanized iron yana tashi akan zinc don hanyar tattara goma, amma PPGI zai tura daya biyu shine yana amfani da polymer based paints na girman 20 zuwa 25 microns. Wadannan coatings bata kuma yana haifar da shiyan saman yayin da suka dauka, kuma suya sami iya canza launi da kuma nishidi. Raba na zinc tattara da polymer coatings PPGI yana da maimakon goma na uku zuwa babu na tsakanin goma mai yawa lokacin da aka amfani da shi a cikin halayen hawa. Wannan ya tattara a cikin EN 10169 1 standards don pre painted metals.

Abun da ke ciki Composition da Coating Layers na PPGI

Sabbin cut na PPGI yana nuna hudu functional layers:

1. Base Metal : Cold-rolled steel (0.3–1.2 mm thickness)
2. Tufafin Zinc : Hot-dip galvanized layer (60–275 g/m²)
3. Chemical pretreatment : Chromium-free conversion coating (1–3 μm)
4. Paint system : Primer (5–8 μm) + topcoat (15–20 μm)

An yaya ke ƙara tare da ƙima, amma topcoat—wanda a ƙauyen zai zama polyester, PVDF ko SMP—yake nuna zaɓin UV da kima na gajere. Maimakonin yake amfani da dagan wadannan a 400–600°C peak metal temperatures don nufin tattara na molecular da karkashin aiki a cikin zaman lafiya.

Tsari na Coating (2/1 vs 2/2): Manazarta don Aiki

Fasos da keɓe su ne a cewa su na ɓangare da su, ɗaya daga biyu da ɗayan laya a gefen ƙarshe. Wannan baƙin yin aikin yin tattara daga cikin ƙimar al'ajabu, kuma yin tattara gefen ƙimar al'ajabu sosai daga ƙimar 12% zuwa 18% idan aka tura da ɓangaren 2/2. Menene abin da ke da kyau? Babu tattara mai kyau a gefen ƙarshe don hanyar gudun kaskar yaro. Tattaunawa da ASTM B117 standards su na ziwa cewa al'ajabun da ke da layuka suka dace su iya tafiya 40% karfi da kuma yin fito na al'ajaba. A gefen mutane mai karfi, 2/1 ya fi kyau don abubu da ke cikin gida, amma idan ya zai zuwa yayin da aka ke kusale ko anyi gida da ke soƙa daga biyu dama, zai zama buƙatar da ke cewa aka yi 2/2 al'ajabu.

PPGI akanni zuwa PPGL: Binciken farka da lokacin da ke amfani da wanne

PPGI akanni zuwa PPGL Coil: Lokacin da ke zaɓi wanne?

Abubuwan da ke PPGI da PPGL su da sauki da ke cikin gudun karkashi. A cikin rukunin PPGL, akwai kwayoyin ƙaru mai tsavawa wanda ke nuna alminyum da zink (kamar yada 55% alminyum, 43% zink kuma akwai silicon) wanda ya sa shi zama mafi kyau don ganin harshen kai, kamar yada ruwa mai yanyuwa a yankuna daga baya ko harshen gudu a yankuna ta si. Zankan yi aiki da saurin zafi kuma, yana taka leda zuwa ga ƙarfi 315 daraja selsiya ba tare da kai ba. A wani banda, PPGI ya yi amfani da zink mai tsoro ba tare da ƙwayoyin alloy, don haka ya zama mafi sauƙi na kudin - kamar yada 3% zuwa 11% mafi sauƙi - wanda ya sa shi zama mafi kyau don abubuwa a cikin gida ko abubuwan da ke maimaita kudin da ba a maimaita ba. Amma kuma, lokacin da muka duba aikin da ke cikin gaba daya, manyiyan gudun suna samun cewa PPGL ya zama mafi kyau don samun gaba da harshen kai kafin ya karshe, irin aljanna da ke maimaita kudin. Wannan ya zama mafi kyau don abubuwan da ke maimaita kudin a cikin gida ko yankuna da ke cikin harshen kai ko harshen rana wanda akan kawo cirewa da kai.

Farku na Kima da Ƙima da Tattara

Wani farka ke cikin substrate:

• Ppgi : Yana amfani da fulofilo steel ta hanyar 100% zinc coating , ta ba da alaƙa mai fiye da kwayoyin ƙima.
• PPGL : Yana da alaƙa ta galvalume base (Al-Zn-Si alloy), ta tsinkon zinc ta hanyar tattara da Aluminiyam ta hanyar gani.

Mafautoci na gaba shine wani abu da a sanin lokacin da muke duba yadda wasu abubuwa suka yi amfani da suka dawo. Duba kuma abin da ke nufin testing na salt spray. PPGL zai dawo da kari 1,500 hours saboda ASTM B117 standards, amma PPGI na iya samen 600 zuwa 800 hours kafin yin alhassar. Wani abu mai muhimmi da ke nufin PPGL shine wani coating na aluminum wanda ya taka ruwa mai kura daga gabanin inda wasu abubuwan ke kura guda. Sai kuma saboda mai kira shine zamu sami 3% karin dawowa daga kowane ton na abubuwa, wani abu da zai iya ƙara cikin wasu alamomin gine-ginen. Lokacin da inganciyan ke buƙata steel wanda ke da karamin taimako mai yiyu da ke cikin 275 MPa, suke amfani da PPGL saboda ya gudanar da suka iya amfani da suka iya gudanarwa. Masu gine-ginen ke koma zuwa wannan hanyar amfani da suka dawo sosai yayin da asusun ke taka cikin kowane samin.

Yin nufin Zinc Coating Levels da Corrosion Resistance a cikin PPGI Coils

Zinc coating levels (AZ20 zuwa AZ275): Iya taka da saukin amfani

Kwatunci na zinc na PPGI suna dace daga AZ20 (20 g/m²) zuwa AZ275 (275 g/m²), wanda za a zaɓa ba da ƙarin tafiya na gini ko yadu da ke ciki. Bayanin na asali ya nuna:

Tsunan kama da kwayakwar gudun PPGI

Shidange na zinc ya zama anode mai tabbatarwa, kejiyar kwalin na babban gudun. PPGI na polyester-coated AZ100 ya da 90% na tsayayyen aikar na 15 shekaru a yankunan mai gaban taya, basadun kan labarai na gaban taya.

Kwayakwar gudun a yankunan gaban kasa da yankunan kasuwanci

A yankunan gaban kasa, shidange mai girman zinc na AZ275 ya kwaya zuwa kwayar gudun amma ya mema sistema mai tsaba na ruwa. A yankunan kasuwanci, ruwan mai kwaya zuwa chemicals ya sanya girman zinc—AZ150 da PVDF coatings ya fi AZ275 a yankunan mai asidu (pH <4).

Babban shanu: Babba girman zinc bata nufin babba cikin shekara

Ne ya dace ne aka samu 4.6x karin zinc daran AZ60, AZ275 ya nuna identical 12-year field performance a cikin sulfur-rich environments. Pollutant particulates zai iya tattara zinc layer, kuma hattara nisa attack substrate. A kama na, maimakonin zununi ke duba moderate zinc levels (AZ90–AZ150) da aluminum-zinc alloy undercoats don optimal protection a cikin challenging conditions.

Nawodya Tsamayi, Zaɓuwa Zaɓuwa, da Environmental Performance

Nawodya tsamayi don PPGI coil (polyester, SMP, HDP, PVDF): A lifecycle analysis

Tsanshewa na tsamayi na sistema ta ke sake maimakonin tsawon, zaɓuwa, da environmental resilience. Duk sashen - polyester, SMP (Silicone Modified Polyester), HDP (High Durability Polyester), da PVDF (Polyvinylidene Fluoride) - suna da kyauyar aikace-aikacen:

Jilicci na poliesteri ta hanyar ƙarin kusurwa ta yi aiki da fatan don kasa da su na zamani mai kyau, amma kowanne zai sani da ya kafa shi a cikin kusurwa ya sami cewa ya fara ƙarewa kusa idan ya yi lafiya da rayuwar mai tsawo ko gabanin goma. Jiliccin na poliesteri mai ƙarin silicone ya nuna ƙarin sashen da ke addin wadannan abubuwa mai amfani da ƙarin abubuwan na silicone wanda ke taimakawa wajen takauchi, don haka muna sauki a samun shi a cikin ababen da su na rayuwa mai tsawo. Don masanaufin da ke da alhakin aljibunta da su na kimiya mai tsawo, polyethylene mai ƙima ya nuna cewa shi ne mai tsauri. Sai PVDF shine wani da ke da tsangayen na fluorocarbon wanda ya taka ce ya taka da kusan duk dukkan tsarun tsari. Babu duba da su na nuna cewa waɗannan abubuwan na iya taka da zaune guda su cikin shekaru da su na ƙofe idan suka kasance a cikin sahara inda zamu ta zuba su na shekara da su na kusa.

Turbawon da ke kima da na'urar gaskiya ta hanyar wasan da ke kima da na'urar gaskiya, wanda ya sa mutane su yi amfani da SMP da PVDF. Amma polyester ya zama mamon mutane na shigarwa da ke buji da su babu taimako sosai. Lokacin da aka zabi PPGI, zabi abin da ke ciki wanda yake da kyauyen da ke fitowa da tsohon gudun da aka yi amfani shi ba tare da kudin farko kawai.

Zabbatar PPGI Coil Mai Kyau: Ma'aikata, Kudi, da Abokan Sauran Abubuwa

Zungurwar PPGI zuwa ma'aikata (a cikin gida, a daban gida, a yankin gaban gida)

Lokacin da aka zabi abubuwan PPGI, ala'alwar zuwa ke nuna aikin a cikin tallafin. Don kasan da ke kusa da gaban da ke da salt, mutane da ke zabi abubuwa waɗanda ke da AZ150 zinc coated sheets da kuma PVDF paint coatings don kiran gaban da ke da salt yayin da aka yi ASTM B117 testing protocols. A cikin shagunan da ke da ala'alwar daban-daban, saboda haka mutane da ke asusun abubuwa ke zabi SMP coated AZ100 coils wanda ke da alhakin aiki guda da kimiyyar da ke cikin wasan asusun. A cikin gurada, idan baza a samu ala'alwar da ke kiran, aka iya amfani da AZ40 zuwa AZ60 grades tare da tsawon polyester paints. Galvanizing Industry Report da aka bai da shi a shekarar da ke ci gaba ya nuna wannan, ya nuna cewa waɗannan tallafin a cikin gurada suna da sauti a jangin zaman da ba ya nuna izinin rashidi.

Kiyaye na PPGI a matsayin da ke cikin wasan da ke farka: Talla na gargajiya

Hanyoyi PPGI zai hada 20-35% karfi dukawa a karkashin galvanized steel ba su da furci ba, amma an 25-40 shekara na tsuntsaye a cikin ala'ida mai ƙarfi (daban don 10-15 shekara don ala'ida ba su da furci) ya dace 15-30% kasa biyan kwalin kowane, don NACE International's 2024 corrosion study. Masu kwalin kari na biya sune:

Yaya za a zaɓi mai fitowa mai amintci na PPGI/PPGL steel coil: Kwalin tasho

Mai fitowa masu amintci dole su sake:

• Tsamayin furci na tasho ta uku (banbancin 20μm don amfani a waje)
• Takaddunan da ke nufin cimma da ASTM A653/A653M
• Kula da ke nufin cikin cikin tsakanin kula (±0.5 ΔE per ASTM D2244)

Mai sauye da ke da ISO 9001 shi ne ya da 83% kara gaba daga cikin alamun gajere da ba suke da ijazah, sannan kadanin 2024 na kualiti na fahasa

Taktika: Niyaye takaddunan tacewar kofa da rashin girman tacewa

Kada kawo wa su wadannan hudu na ilimin siffar da suka ke ciki:

1. Takaddun tacewar kofa (MTC) don siffofin tsabar
2. Takaddun zangan tacewa (CWC) naya nufin tacewar zangan
3. Rajista na tacewar rawaya (PQR) naya nufin tacewar UV
4. Rajista na cikin cikin batch (BCR) don cikin cikin kula

Takaddun na uku aikin da ASTM International ya kara nufin kuskure da yawa ta 74%, basing on their 2023 compliance study

Saba Daga Sabon Wannan

Menene da keke PPGI ya amfani da shi?

PPGI ya amfani da shi a tattara sosai don gurji, gishin da kuma fasade. Hakanan yana amsawa a wasan abokan gida da kuma aikace-aicacen mota ta hanyar tsagawa da kuma iya canzawa.

Yaya mawa PPGI zai tafi?

Za PPGI zai tafi daga 10 zuwa 40 shekaru wajen tushen na tushen da kuma no ƙimar goma.

Menene da ke memen PPGI da PPGL?

PPGI ta amfani da goma mai zinc, amma PPGL ta amfani da goma mai galvalume (aluminum, zinc, da silicon), wanda ke baka tushen tare da rust.

Menene da keke biyan PPGI ta daki?

Biyan yana da alaƙa da no ƙimar goma, ƙimar zinc, nemo goma, da kuma mutumai na abokin sayarwa.

Menene no goma masu amfani da su na PPGI?

No goma masu amfani da su na PPGI sun haɗa Polyester, SMP, HDP, da PVDF, wanda wani daga cikinsu ya baka tsagawa da kuma tushen UV.