Jurnal Teknik Mesin
Vol 2, No 1 (2012)

ANALISIS KEKERASAN PERLAKUAN PANAS BAJA PEGAS DENGAN PENDINGINAN SISTEM PANCARAN PADA TEKANAN 20, 40 DAN 60 PSi

Asfarizal Asfarizal (Institut Teknologi Padang)
Suhardiman Suhardiman (Institut Teknologi Padang)



Article Info

Publish Date
02 Jul 2013

Abstract

In the heat treatment with rapid dye method (Quenching) has the disadvantage that the increase of water temperature around the metal is high enough, it is not suitablefor long material, this issue need another attempt to study the cooling method with spraying system which is done to the spring steel. Heating is done until temperature of 920 ° C, with holding time 60 min, pressure 20, 40, 60 psi and 120 seconds of spraying time. After heat treatment, the specimens' hardness is tested by the method of Rockwell C (HRC). The results of hardness testing showed that the average hardness at a pressure of 20, 40, 60 psi is 34.55 HRC, HRC 39.80, and 40.45 HRC. At a pressure of 60 psi martensiticphase is observed clearly. There is a tendency that the higher the pressure, the hardness increased.

Copyrights © 2012






Journal Info

Abbrev

tmesin

Publisher

Subject

Mechanical Engineering

Description

Jurnal Teknik Mesin (JTM) is a journal aims to be a peer-reviewed platform and an authoritative source of information. We publish original research papers, review articles and case studies focused on mechanical engineering and other related topics. All papers are peer-reviewed by at least two ...