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All Journal Journal of Vocational and Career Education MANGGALI
Mustikawati, Diana Langgeng
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Education Environmental Science Social Sciences

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Analysis of the Process of Implementation of Work Practices Industry Vocational High School Students in Purwodadi Mustikawati, Diana Langgeng; Khumaedi, Muhammad; Anis, Samsudin
Journal of Vocational and Career Education Vol 3, No 1 (2018): July 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v3i1.15240

Abstract

The purpose of this research was to describe the process of the implementation of student state Vocational School Prakerin in Purwodadi and test the difference Prakerin in state Vocational School and private vocational schools in Purwodadi. This research uses research survey that is descriptive. The population of  this research is the grade XI Concrete Masonry Construction Engineering (TKBB) of state Vocational School and private vocational schools  in Purwodadi. The Sampling technique used was Simple Random Sampling. The results of the research implementation process of state Vocational School that is as much as 10 students (21.74%) stated the very high category, 31 students (67.39%) including the categories high, by as much as 5 students (10.87%) stated the categories and score an average of 141.26. Results of the study in private vocational schools show that as many as 8 students (17.39%) including the very high category, 14 students (30.43%) said the high category, as many as 14 students (30.43%) including categories and score an average of 134.37. The results of calculations using SPSS t-Test of can to score t of extent and significance is 3.794 0.000 ˂ 0.05 so the hypothesis described there are differences in the implementation process state Vocational School and private vocational schools in Purwodadi was supported by the data. Implementation of student state Vocational School Prakerin including categories higher and private vocational schools categories include enough.
Pelatihan Pelapisan Logam dengan Teknik Elektroplating Oktoberty, Oktoberty; Suyanto, Suyanto; Mustikawati, Diana Langgeng; Naufal, Ahmad
Manggali Vol 5 No 1 (2025): Manggali
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/manggali.v5i1.3655

Abstract

Pelapisan dengan metode Elektroplating adalah suatu proses pengendapan logam pada permukaan suatu logam secara elektrolisa, endapan yang terjadi bersifat adhesif terhadap logam dasar. Fungsi utama dari pelapisan logam adalah memperbaiki penampilan (dekoratif), memperbaiki kehalusan atau bentuk permukaan dan toleransi logam dasar, melindungi logam dasar dari korosi , dan meningkatkan ketahanan produk terhadap gesekan (abrasi). Pelapisan tembaga pada besi (baja) dilakukan dengan menggunakan cairan elektrolit HCl 2%, menggunakan listrik DC 5 Volt 2 Ampere, waktu pembuatan larutan pelapis 2 jam, dan waktu pelapisan 5 hingga 10 menit. Lagkah terakhir adalah membersihkan benda kerja dengan etanol atau air sabun, dan dilakukan pemolesan. Proses ini menghasilkan produk dengan tampilan yang gilap dan lebih tahan korosi.
Co-Authors Ahmad Naufal, Ahmad Muhammad Khumaedi Oktoberty, Oktoberty Samsudin Anis Suyanto Suyanto