Metallization figure in plasma and detonation spray coating

1969 ◽  
Vol 8 (10) ◽  
pp. 859-862
Author(s):  
E. A. Astakhov ◽  
S. Yu. Sharivker
Keyword(s):  
Spray Coating ◽  
Detonation Spray ◽  
Detonation Spray Coating

Study of the Cr3C2–NiCr detonation spray coating

2000 ◽  
Vol 130 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Jun Wang ◽  
Li Zhang ◽  
Baode Sun ◽  
Yaohe Zhou
Keyword(s):  
Spray Coating ◽  
Detonation Spray ◽  
Detonation Spray Coating

scholarly journals Properties of WC–10%Co–4%Cr Detonation Spray Coating Deposited on the Al–4%Cu–1%Mg Alloy

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1206
Author(s):  
Marina Samodurova ◽  
Nataliya Shaburova ◽  
Olga Samoilova ◽  
Ahmad Ostovari Moghaddam ◽  
Kirill Pashkeev ◽  
...  
Keyword(s):  
Spray Coating ◽  
Atmospheric Plasma ◽  
Coating Deposition ◽  
Local Improvement ◽  
Spray Method ◽  
Detonation Spray ◽  
Coating Microstructure ◽  
Detonation Spray Coating ◽  
Oxygen Fuel

One of the methods of local improvement of the wear resistance of aluminum alloy parts is the deposition of hard tungsten carbide-based coatings on the surfaces subjected to intense external influence. This paper is devoted to the characterization of the WC–10Co–4Cr (wt.%) coating deposited on an Al–4Cu–1Mg (wt.%) alloy by the detonation spray method. In comparison with the common thermal spray techniques like High Velocity Oxygen Fuel (HVOF) or Atmospheric Plasma Spraying (APS), the heat input delivered to the substrate during detonation spray is significantly lower, that is especially important in case of coating deposition on aluminum alloys. The paper presents the results of morphology investigation, microstructure, phase composition, microhardness, and cohesive strength of deposited carbide-based detonation spray coating. Results showed that the coating has a porosity less than 0.5% and the carbide grain refinement down to the submicron size during coating deposition was detected. According to the investigation, the variation of spraying distance from 270 to 230 mm does not influence on the coating microstructure and composition.

The Influence of Powder Characteristics on the Properties of Detonation Sprayed Cr3C2-25NiCr Coatings

2000 ◽  
Author(s):  
K.R.C. Somaraju ◽  
D. Srinivasarao ◽  
G. Sivakumar ◽  
D. Sen ◽  
G.V.N. Rao ◽  
...  
Keyword(s):  
Thermal Spraying ◽  
Spray Coating ◽  
Coating Properties ◽  
Detonation Spray ◽  
Powder Characteristics ◽  
Carbide Dissolution ◽  
Coating Microstructure ◽  
Detonation Spray Coating ◽  
Steel Substrates ◽  
Different Sources

Abstract Thermal sprayed chromium carbide (Cr3C2)-25% NiCr (Ni-20%Cr) coatings are extensively used in wear resistant applications especially under conditions wherein operating temperatures are likely to be higher than 500°C . The performance of the Cr3C2-NiCr coatings under such conditions depend on a variety of coating properties like the porosity, microstructure, extent of decarburization of Cr3C2 phase and hardness. One of the parameters which affects the above mentioned coating properties is the characteristics of the powder utilized for thermal spraying. In the present study, Cr3C2-25% NiCr powders obtained from four different sources has been utilized to form Cr3C2-NiCr coatings on steel substrates utilizing the detonation spray coating (DSC) system. The Cr3C2-NiCr powders utilized vary from each other in terms of manufacturing route employed (sintered and crushed, pre-alloyed, blended, etc.), particle size distribution, particle shape and even phases present. The influence of each of these powder characteristics on the coating microstructure, porosity, hardness, extent of carbide dissolution and ultimately on coating performance (i.e. sliding and abrasive wear resistance) has been evaluated.

Patent Trends of Detonation Spray Coating Technology

2016 ◽  
Vol 9 (1) ◽  
pp. 9-19 ◽  
Author(s):  
Priya Anish Mathews ◽  
Sanjay Bhardwaj ◽  
Padmanabham Gadhe ◽  
Srinivasa R. Dameracharla
Keyword(s):  
Spray Coating ◽  
Coating Technology ◽  
Detonation Spray ◽  
Detonation Spray Coating

Wear Resistance of a Cr3C2-NiCr Detonation Spray Coating

2002 ◽  
Vol 11 (2) ◽  
pp. 261-265 ◽  
Author(s):  
Jun Wang ◽  
Baode Sun ◽  
Qixin Guo ◽  
Mitsuhiro Nishio ◽  
Hiroshi Ogawa
Keyword(s):  
Wear Resistance ◽  
Spray Coating ◽  
Detonation Spray ◽  
Detonation Spray Coating

Thermal spray coating of aluminum nitride utilizing the detonation spray technique

2002 ◽  
Vol 17 (10) ◽  
pp. 2514-2523 ◽  
Author(s):  
L. Rama Krishna ◽  
D. Sen ◽  
Y. Srinivasa Rao ◽  
G. V. Narasimha Rao ◽  
G. Sundararajan
Keyword(s):  
Aluminum Nitride ◽  
Phase Distribution ◽  
Steel Substrate ◽  
Spray Coating ◽  
Wear Test ◽  
Deposition Process ◽  
Tribological Performance ◽  
Spray Parameters ◽  
Pure Alumina ◽  
Detonation Spray

The main objective of this work is to examine the feasibility of depositing aluminum nitride (AlN) powders, synthesized using self-propagating high-temperature synthesis, on a mild steel substrate using the detonation spray coating technique. Thick coatings produced by utilizing the AlN powder were obtained at four different oxygen–acetylene ratios and analyzed for microstructure, microhardness, porosity, indentation fracture toughness, and phase distribution. The AlN powder particles were found to be undergoing oxidation during the deposition process. The interrelationship between the spray parameters and the extent of oxidation of AlN during the coating process was investigated. Tribological performance of the coatings was evaluated using a dry sand abrasion test and a pin-on-disc sliding wear test. The mechanical and tribological properties of the above four coatings were compared with pure alumina (Al2O3) coatings. The correlation between the structure of the coatings and their tribological performance was also established.

Development of High Accuracy Spray Coating Method using Multi-layer Coat

2013 ◽  
Vol 133 (5) ◽  
pp. 170-176 ◽  
Author(s):  
Mikio Akamatsu ◽  
Kyohei Terao ◽  
Hidekuni Takao ◽  
Fusao Simokawa ◽  
Fumikazu Oohira ◽  
...  
Keyword(s):  
Spray Coating ◽  
High Accuracy ◽  
Coating Method

PENGARUH KESELAMATAN, DAN KESEHATAN KERJA, LINGKUNGAN KERJA, SEMANGAT KERJA, DAN STRES KERJA TERHADAP KINARJA KARYAWAN PT. MASPION I PADA DIVISI MAXIM DEPARTEMEN SPRAY COATING SIDOARJO

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Agnes Filindawati Winarno
Keyword(s):  
Random Sampling ◽  
Spray Coating

Penelitian ini menggunakan metode penelitian kuantitatif. Penelitian ini dilakukan di PT. Maspion I Divisi  Maxim Departemen Produksi Spray Coating. Data dikumpulkan dengan menggunakan alat bantu kuesioner terhadap 70 karyawan yang diambil secara sample random sampling. Analisis ini menggunakan analisis regresi linier berganda, dengan uji instrumen uji validitas, uji reliabilitas, uji asumsi klasik, dan determinasi menggunakan aplikasi komputer program SPSS 16.0. Dari hasil uji parsial (uji t) untuk Hasil uji t untuk variabel keselamatan dan kesehatan kerja (X1) mendapatkan Nilai signifikan sebesar 0,006 < 0,05 dan nilai Thitung 2.841 > Ttabel 1.667 sehingga dapat disimpulkan bahwa H1 ditolak Ha diterima, Hasil uji t untuk variabel lingkungan kerja (X2) mendapatkan Nilai signifikan sebesar 0,023 < 0,05 dan nilai Thitung 2.335 > Ttabel 1.667 sehingga dapat disimpulkan bahwa H2 ditolak Ha diterima, Hasil uji t untuk variabel semangat kerja (X3) mendapatkan Nilai signifikan sebesar 0,016 < 0,05 dan nilai Thitung 2.477 > Ttabel 1.667, sehingga dapat disimpulkan bahwa H3 ditolak Ha diterima, Hasil uji t untuk variabel stres kerja (X4) mendapatkan Nilai signifikan sebesar 0,021 < 0,05 dan nilai Thitung 2.365 > Ttabel 1.667, sehingga dapat disimpulkan bahwa H4 ditolak Ha diterima, jadi dapat disimpulkan bahwa semua variabel dari keselamatan kerja, lingkungan kerja, semangat kerja, dan stres kerja berpengaruh secara parsial terhadap kinerja karyawan PT. Maspion I Divisi Maxim Departemen Produksi Spray Coating. Dari hasil uji simultan (uji f) perhitungan yang diperoleh nilai F hitung sebesar 11.438 dengan tingkat signifikasi 0,000 < 0,05. Dengan demikian keputusan yang diambil Ho ditolak dan Ha diterima. Hal ini berarti bahwa semua variabel bebas secara bersama-sama mampu memengaruhi variabel terikat secara signifikan. Dari koefisien determinasi menjelaskan bahwa variabel bebas mampu menjelaskan sebesar 41.3% dan sebesar 58.7% dijelaskan oleh variabel lain yang tidak diteliti dalam penelitian ini.Kata Kunci : Keselamatan dan Kesehatan Kerja, Lingkungan Kerja, Semangat Kerja, Stres Kerja, dan Kinerja Karyawan.

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