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Wuxi Junteng Fanghu Alloy Technology Co., Ltd.
Since 2006, we have been dedicated to designing and manufacturing alloy steel components. We are OEM Ni-tvrde lopatice miješalice za beton | Dugotrajni potrošni dijelovi za miješalice za cement Suppliers and Ni-tvrde lopatice miješalice za beton | Dugotrajni potrošni dijelovi za miješalice za cement Factory.
Naši primarni proizvodi uključuju uređaje za toplinsku obradu, cijevi za zračenje, valjke za peći, lopatice ventilatora, tračnice za peći, kotače i razne druge dijelove od legura za peći. Nudimo tehničku pomoć za prilagodbu ili optimizaciju vaših uređaja za toplinsku obradu, pomažući našim klijentima da otkriju isplativa rješenja za povećanje učinkovitosti svojih operacija toplinske obrade.
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Certificate Of Honor
  • 2016 Izvanredan dobavljač
  • 2017 Izvanredan dobavljač
  • Izvanredan dobavljač za 2018
  • Kinesko udruženje industrije toplinske obrade
  • Obrazac za registraciju vanjske trgovine
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Vijesti
Ni-Hard Casting Industry knowledge

Koje su tipične primjene Ni-Hard odljevci u industriji rudarstva, betona i šljunka?

1. Mining Crushing and Grinding Equipment: Due to its high hardness and wear resistance, Ni-Hard castings are widely used in key components such as ball mill liners, hydraulic breakers, grinding rollers, and conveying pipelines, maintaining a long service life during high-load ore crushing and grinding processes.

2. Concrete Mixing and Conveying Systems: In concrete mixers, conveying screws, and pump casings, Ni-Hard castings can withstand the strong impact and abrasion of concrete particles, improving equipment reliability and maintenance intervals.

3. Gravel Conveying and Sandblasting Equipment: Used in gravel conveying pipelines, sandblasting nozzles, and blower blades, Ni-Hard's high hardness and impact resistance ensure that it is not easily worn or deformed in high-speed, sand-containing media environments.

4. Other High-Abrasion Applications: Ni-Hard castings can be used in applications such as mining screens, slag conveying pumps, and steel rolling mill rolls to provide dual protection against wear and impact.

Kako se Ni-Hard odljevci ponašaju u visokotemperaturnim i vlažnim okruženjima?

1. Otpornost na oksidaciju pri visokim temperaturama: Ni-tvrde legure sadrže približno 1,4–2,5% kroma i 3,4–4,75% nikla. These two elements form a dense oxide film on the surface at operating temperatures of 300–400°C, significantly enhancing oxidation resistance.

2. Corrosion Resistance in Humid Environments: Studies show that Ni-Hard castings maintain good corrosion resistance in humid or water-vapor-containing environments, mainly due to the protective oxide layer formed by chromium and the passivation effect of nickel. To rezultira mnogo nižom stopom gubitka mase pri visokim temperaturama, vlažnim uvjetima u usporedbi s običnim bijelim lijevanim željezom s visokim sadržajem kroma.

3. Učinak toplinske obrade na koroziju: Kaljenje na visokoj temperaturi ili popuštanje može prilagoditi udio zadržanog austenita u matrici. A moderate amount of retained austenite helps form a fine martensite-austenite mixed structure on the working surface, further improving resistance to crack propagation and corrosion cracking.

4. Practical Application Verification: In field applications of ball mill liners and gravel conveying pipelines in mines, Ni-Hard castings exhibited extremely low corrosion rates and stable mechanical properties under long-term high-temperature and humid working environments, verifying their excellent corrosion resistance.