Restoration of obliterated stamped marks on cast iron surfaces by etching techniques
Restoration of erased obliterated marks on cast iron surface by chemical etching is very difficult. Hence, a series of experiments were conducted to identify a sensitive and efficacious reagent that could recover obliterated stamped numbers on this surface. One cast iron (3.29%C) car engine block...
| Main Author: | |
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| Format: | Monograph |
| Language: | English |
| Published: |
Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia
2011
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| Subjects: | |
| Online Access: | http://eprints.usm.my/53457/ http://eprints.usm.my/53457/1/MOHD%20FARIZON%20BIN%20ABDUL%20WAHAB-24%20pages.pdf |
| _version_ | 1848882533817647104 |
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| author | Abdul Wahab, Mohd Farizon |
| author_facet | Abdul Wahab, Mohd Farizon |
| author_sort | Abdul Wahab, Mohd Farizon |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Restoration of erased obliterated marks on cast iron surface by chemical etching is very
difficult. Hence, a series of experiments were conducted to identify a sensitive and efficacious
reagent that could recover obliterated stamped numbers on this surface. One cast iron
(3.29%C) car engine block was purchased and cut into several small pieces. Some numerical
characters were stamped on their surfaces using Instron Table Mounted Universal Testing
Machine at 8kN. The stamped numbers were then removed by filing until no longer visible.
Eight metallographic of which most contained copper compounds were chosen for restoration.
The restoration was done by swabbing and immersion techniques. The results have shown
that among eight etching reagents a modified Fry's reagent consisting of 45 gram cupric
chloride, I OOmL hydrochloric acid, and 180mL water gave excellent contrast and sensitivity
of the recovered numbers. This reagent also successfully recovered the marks obliterated by
centre punching/peening and over stamping.
liPage |
| first_indexed | 2025-11-15T18:36:26Z |
| format | Monograph |
| id | usm-53457 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:36:26Z |
| publishDate | 2011 |
| publisher | Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-534572022-07-19T08:28:28Z http://eprints.usm.my/53457/ Restoration of obliterated stamped marks on cast iron surfaces by etching techniques Abdul Wahab, Mohd Farizon R Medicine Restoration of erased obliterated marks on cast iron surface by chemical etching is very difficult. Hence, a series of experiments were conducted to identify a sensitive and efficacious reagent that could recover obliterated stamped numbers on this surface. One cast iron (3.29%C) car engine block was purchased and cut into several small pieces. Some numerical characters were stamped on their surfaces using Instron Table Mounted Universal Testing Machine at 8kN. The stamped numbers were then removed by filing until no longer visible. Eight metallographic of which most contained copper compounds were chosen for restoration. The restoration was done by swabbing and immersion techniques. The results have shown that among eight etching reagents a modified Fry's reagent consisting of 45 gram cupric chloride, I OOmL hydrochloric acid, and 180mL water gave excellent contrast and sensitivity of the recovered numbers. This reagent also successfully recovered the marks obliterated by centre punching/peening and over stamping. liPage Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia 2011 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53457/1/MOHD%20FARIZON%20BIN%20ABDUL%20WAHAB-24%20pages.pdf Abdul Wahab, Mohd Farizon (2011) Restoration of obliterated stamped marks on cast iron surfaces by etching techniques. Other. Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia. |
| spellingShingle | R Medicine Abdul Wahab, Mohd Farizon Restoration of obliterated stamped marks on cast iron surfaces by etching techniques |
| title | Restoration of obliterated stamped marks on
cast iron surfaces by etching techniques |
| title_full | Restoration of obliterated stamped marks on
cast iron surfaces by etching techniques |
| title_fullStr | Restoration of obliterated stamped marks on
cast iron surfaces by etching techniques |
| title_full_unstemmed | Restoration of obliterated stamped marks on
cast iron surfaces by etching techniques |
| title_short | Restoration of obliterated stamped marks on
cast iron surfaces by etching techniques |
| title_sort | restoration of obliterated stamped marks on
cast iron surfaces by etching techniques |
| topic | R Medicine |
| url | http://eprints.usm.my/53457/ http://eprints.usm.my/53457/1/MOHD%20FARIZON%20BIN%20ABDUL%20WAHAB-24%20pages.pdf |