{"type":"product","schema_version":"1.0","item_id":"100394208464","canonical_url":"https://tw.bid.yahoo.com/item/100394208464","title":"S 磨刀石#600番目數 超細白剛玉．拋光磨刀石(大平面)   人造磨刀石及天然磨刀石。有效研磨。白剛玉粉。","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-04-25T11:09:40.426Z","current_price":500,"original_price":null,"stock_status":"out_of_stock","available_quantity":6,"sold_quantity":6,"seller":{"id":"Y7166750359","name":"Formosa巧匠工坊 台南刀","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/4381e490-da31-4267-b974-3d785cef8c33.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/92641e3f-87a8-4580-bd5b-22cc509b5656.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b2e409ae-79a7-4527-95d1-2257ef5d3bad.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/59ba3127-0470-4ed2-a835-fafa7d61e227.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/c32ae8c0-4902-44e9-b2f4-d3e018ab144d.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/1079c00a-f29c-4efb-861c-fcdae29cf418.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/a1b8cf27-cf12-4f95-919b-d62f208f6d7a.jpg","role":"detail","alt":"商品圖片 7","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/d48aaa08-61aa-4b0e-af1b-cdede232810b.jpg","role":"detail","alt":"商品圖片 8","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/17b8c91a-2d56-4ff7-a964-b9106b0bd838.jpg","role":"detail","alt":"商品圖片 9","width":null,"height":null}],"description":"磨刀石  #600 番目數超細白剛玉．拋光磨刀石\n\n尺寸:196*80*30MM(大尺寸)\n\n可以磨比較久\n\n大平面 大尺寸可以增加刀刃與磨石接觸面 磨刀更均勻更有效率\n\n一次成型 粒度均勻 磨削力強 耐酸鹼腐蝕 耐高溫\n\n要說明這個。得引用很多照片。。若有不妥。請告知本人移除。\n1.談到研磨。要有效且快速。。。。以相對材料硬度來說要有四倍的硬度差距。（圖五）\n如果硬度差不多就是在修。不是磨。。\n德國鋼質磨刀棒去修德國刀口。。用陶瓷磨刀棒去修硬度63龍刀的刀口。。\n\n目前常用廚刀HRC60硬度換算成勃氏硬度是750（圖四）HRC65以上勃氏硬度更高。\n\n2天然磨刀石裡頭較硬的研磨成分是石英。勃氏硬度是600-900（圖二）\n\n3人造粉石（需泡水）刃黑。據說有加入陶瓷粉末。\n陶瓷粉末莫氏硬度8.5-8.7換算成勃氏硬度也才1200-1500（圖三）\n\n老頭幫各位挑了450元的雙面磨刀石就是白鋼玉粉（剛玉的莫氏硬度都在9以上)。。。勃氏硬度都在2000以上\n相對的磨刀快。。磨石損耗更少。。。\n至於黑寶跟紅寶都是鋼玉系裏結構更密集的產品。。硬度更高。打到腳趾~腳趾會斷~\n正常的刀具基本上對這種石頭不會造成磨耗。。。\n\n老頭一直說。刀具越來越硬。你一直買日本泡水粉石是不對的。。4倍硬度~當你硬度從HRC\n45變成65就差更多了\n\n更多人去買便宜的日本木工具研磨砥在用。。一般的木工具就是雕木鑿洞。很少強調硬度。。。\n所以整理這些木工具的砥石根本不用硬。。。還不如買砂紙更利。。\n\n一大塊日本製磨刀石。賣你幾百元。。是應付早期農業工具的。\n\n買了也磨不動你的刀。。最後那塊石頭還不是拿來當紙鎮寫毛筆字。。","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"},{"name":"宅配/貨運","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨不付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092080625","category_name":"其他五金工具","breadcrumb":[{"id":"24198","name":"居家、家具與園藝","url":"/tw/%E5%B1%85%E5%AE%B6%E3%80%81%E5%AE%B6%E5%85%B7%E8%88%87%E5%9C%92%E8%97%9D-24198-category.html"},{"id":"24642","name":"五金/照明工具","url":"/tw/%E4%BA%94%E9%87%91-%E7%85%A7%E6%98%8E%E5%B7%A5%E5%85%B7-24642-category.html"},{"id":"2092080625","name":"其他五金工具","url":"/tw/%E5%85%B6%E4%BB%96%E4%BA%94%E9%87%91%E5%B7%A5%E5%85%B7-2092080625-category.html"}],"view_count":0,"watch_count":10}