TW200848376A - Method for producing mold for glass molding - Google Patents
Method for producing mold for glass molding Download PDFInfo
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- TW200848376A TW200848376A TW096148054A TW96148054A TW200848376A TW 200848376 A TW200848376 A TW 200848376A TW 096148054 A TW096148054 A TW 096148054A TW 96148054 A TW96148054 A TW 96148054A TW 200848376 A TW200848376 A TW 200848376A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
- C03B11/086—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1655—Process features
- C23C18/1657—Electroless forming, i.e. substrate removed or destroyed at the end of the process
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1689—After-treatment
- C23C18/1692—Heat-treatment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
- C23C18/1862—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by radiant energy
- C23C18/1865—Heat
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/48—Coating with alloys
- C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/02—Press-mould materials
- C03B2215/08—Coated press-mould dies
- C03B2215/10—Die base materials
- C03B2215/11—Metals
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/02—Press-mould materials
- C03B2215/08—Coated press-mould dies
- C03B2215/14—Die top coat materials, e.g. materials for the glass-contacting layers
- C03B2215/16—Metals or alloys, e.g. Ni-P, Ni-B, amorphous metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemically Coating (AREA)
- Heat Treatment Of Articles (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
200848376 九、發明說明 【發明所屬之技術領域】 本發明是關於需要精密加工的玻璃成型用模 方法,特別是關於能夠維持高精度模具形狀的玻 模具之製造方法。 【先前技術】 於塑膠成型的技術領域,成型模具的精密加 經確立,能夠實現具有繞射光柵等微細形狀的光 量產。於該狀況,模具的製作是在不銹鋼形成的 施以化學Ni-P鍍層處理,接著,以金剛石刀具 進行精密加工藉此執行模具製作。 【發明內容】 〔發明欲解決之課題〕 但是,當將上述相同的模具應用在玻璃成型 致化學Ni-P鍍層產生龜裂的問題。該現象產生 在於成型溫度。即,Ni-P鍍層,於鍍層狀態是成 (非晶質)構造,但加熱至約2 7 (TC以上時就會 化,此時,鍍層會產生體積收縮,作用著拉伸應 層產生龜裂。 該問題的對策是選擇熱膨脹係數爲1 0 χ 1 〇 - 6 (K 1 )的基材,施以鍍層後,以4 0 〇 °C〜5 0 0 t 理。但是,即使基材的熱膨脹係數是配合 具之製造 璃成型用 工技術已 學元件的 基材表面 對該鍍層 時,會導 的原因是 爲非結晶 開始結晶 力以致鍍 〜16x1 (Γ6 進行熱處
Ni-P鍍層,但 200848376 熱處理時’結晶化造成的體積收縮還是只發生在鍍層,因 此於鍍層還是作用著大的拉伸應力,以致還是會有龜裂產 生的狀況(例如參照日本特開平1 1 - 1 5 78 52號公報)。 於是’本發明以提供一種能夠防止表面披覆層於成型 溫度產生龜裂的玻璃成型用模具之製造方法爲目的。 爲了解決上述課題達成目的,本發明的玻璃成型用模 具之製造方法是構成如下述。 對鋼製基材施以淬火處理製成由馬氏體組織形成的基 材’於上述基材的表面,形成由非晶質Ni-P合金形成的 表面披覆層,接著對上述基材施以加熱處理使其改變成屈 氏體(troostite)組織或索氏體(sorbite )組織的同時, 使上述表面披覆層轉變成Ni和Ni3P的共晶組織。 於鋼製基材施以淬火處理後進行深冷處理製成由馬氏 體組織形成的基材,在上述基材的表面形成由非晶質Ni-P 合金形成的表面披覆層,接著對上述基材施以加熱處理使 其改變成屈氏體(troostite)組織或索氏體(sorbite)組 織的同時,使上述表面披覆層轉變成Ni和Ni3P的共晶組 織。 於鋼製基材施以淬火處理後進行深冷處理,再加上施 以回火處理藉此製成ε -碳化物分散在馬氏體中的組織所 形成的基材,於上述基材的表面,形成由非晶質Ni-P合 金形成的表面披覆層,接著對上述基材施以加熱處理使其 改變成屈氏體(troostite)組織或索氏體(sorbite)組織 的同時,使上述表面披覆層轉變成Ni和Ni3P的共晶組織 200848376 【實施方式】 〔發明之最佳實施形態〕 第1圖是表示本發明一實施形態相關的玻璃成型$胃 具之製造方法槪要流程圖。玻璃成型用模具之製造是& τ 述作業步驟執行製造。 另,基材是採用碳爲〇.3wt%以上且2.7wt%以下,絡 爲13wt%以下的鋼製素材。 對上述基材進行粗加工(ST1 )後,接著進行淳火_ 理(ST2 )。其次,在進行鍍前加工(ST3 )後,利用化學 鍍使Ni-P合金形成的表面披覆層(鍍層)形成在基材表 面(ST4 )。接著,對基材及表面披覆層進行加熱處理( ST5 ),使表面披覆層結晶化的同時,使基材轉變成回火 組織。其次,在進行基材精加工(ST6 )及表面披覆層精 加工(ST7)後,對表面披覆層施以脫模膜塗敷(ST8)。 本實施形態是於表面披覆層結晶化採用的加熱處理過 程中,將模具的基材尺寸變化接近表面披覆層的尺寸變化 ,藉此可使作用在表面披覆層的拉伸應力抑制成較小,防 止龜裂產生。 於此,將加熱處理的過程分成3個過程(第1〜第3 過程)進行說明。表1是揭示著第1〜第3過程所產生的 基材溫度變化、組織變化、尺寸變化。 200848376 表1 碳素銅經回火處理後組織及長度的變化 溫度範圍 組織變化 尺寸變化 第1過程 100 〜200〇C 馬氏體—低碳馬氏體+ ε _碳化物 收縮 第2過程 230 〜270〇C 殘留奧氏體-> 貝氏體 膨脹 第3過程 270 〜430〇C 低碳馬氏體-> 鐵素體+碳素體 ε-碳化物碳素體 收縮 即,基材於第1過程中,其體積會隨著組織變化而收 縮。此外,第2過程中,基材是會膨脹。該第1過程及第 2過程的體積變化量非常小,因此表面披覆層不會產生龜 裂。 另一方面,第3過程中,在基材從約27(TC加熱至約 43 0 °C的加熱期間,從低碳馬氏體析出碳素體,母體組織 轉變成鐵素體,隨著該變化造成體積收縮。此時,利用化 學鍍在模具表面形成非晶質Ni-P合金層,於模具加熱成 玻璃成型溫度時,轉變成Ni和Ni3P的共晶組織,此時體 積會收縮。該體積收縮是從約2 70 °C開始,因此就不會產 生拉伸應力,表面披覆層不會產生龜裂。 另,加熱處理溫度是設定成模具使用溫度以上。若加 熱處理的溫度比模具的使用溫度還低,則於使用中會產生 尺寸變化,導致成型品尺寸精度降低。但加熱處理溫度的 上限最好是設定成比模具使用溫度還高30 °C程度爲佳。若 加熱處理溫度高於需求以上則會產生基材軟化等不良影響 基材的組成,碳(C )含量最好是 〇.3wt%以上且 2.7wt%以下爲佳。若碳含量低於0.3wt%時,則於回火處 200848376 理的第3過程中基材的體積收縮量會太少。另一方面’若 碳含量超過2.7wt°/〇時,則基材的體積收縮量雖足夠’但 會產生韌性降低等弊害。 此外,鉻(Cr )含量最好是13wt%以下。若鉻含量超 過13wt°/〇則第2過程的殘留奧氏體分解要5 00°C以上才會 產生,導致不符合Ni-P表面披覆層的體積收縮履歷。另 ,針對鉻含量的下限値,並無特別限制。 加熱處理前的基材組織是需爲馬氏體組織(或低碳馬 氏體+ ε -碳化物)。於該馬氏體分解成鐵素體和碳素體 時,會產生大量的體積收縮。加熱處理後的基材組織是變 成屈氏體組織(鐵素體和碳素體混合成極爲微細的組織) 或索氏體組織(碳素體已粒狀析出成長的鐵素體和碳素體 的混合組織)。
Ni_P或Ni-P-B表面披覆層的組織,於鍍層狀態是非 晶質或局部性非晶質,在約270 °C的加熱下,就轉變成完 全結晶化的N i和N i 3 P的混合組織。於表2中,整理揭示 以上金屬組織學性特徵。 表2 加熱處理前後之基材及表層的組織
加熱處理前 加熱處理後 基材 馬氏體 屈氏體 馬氏體+ 碳化物 索氏體 表層 非晶質Ni 結晶質Ni+Ni3P 對各種組成的基材進行化學鍍Ni-P製作出披覆有 200848376 ΙΟΟμηι鍍層的模具,然對加熱處理中及成型中產生的龜裂 數進行了調查。於表3中,揭示著基材組成、深冷處理、 回火溫度及加熱處理條件和龜裂產生率的關係。玻璃的成 型溫度全部都是採43 0°C。 表3 基材成份及回火溫度、加熱處理條件和龜裂產生率的關係 基材 碳 含量 鉻 含量 深冷處理 溫度 回火 溫度 加熱處理 溫度 龜裂 產生率 試體1 0.7 0.9 姐 Ν\ >frTr 那 450〇C 0/5 試體2 0.7 0.9 ftE 370〇C 450〇C 3/5 試體3 1.2 1.0 -180°C M 450〇C 0/5 試體4 1.2 1.0 -180°C 250〇C 450〇C 0/5 試體5 0.1 13.8 姐 M y 450〇C 5/5 試體ό 0.1 13.8 -180°C >fnT 1ΙΙΓ 450〇C 4/5 如以上所述,本實施形態相關的玻璃成型用模具之製 造方法,試體1是可防止表面披覆層於加熱處理時產生龜 裂的同時,能夠防止模具塑性變形,因此能夠維持高精度 模具形狀。 另,如試體3所示,也可在淬火後進行深冷處理。利 用深冷處理使淬火處理後基材中存在的殘留奧氏體能夠轉 變成馬氏體。如此一來,就能讓馬氏體(低碳馬氏體)的 分解第3過程的體積收縮更加明顯。 再加上,如試體4所示,可在淬火、深冷處理後進行 3 5 0 °C以下的回火處理。若回火溫度比3 5 0 °C高時,則基材 在第3過程的體積收縮會不足,以致龜裂產生在表面披覆 層。 -9- 200848376 另,本發明並不限於上述實施形態,例如基材及表面 披覆層的加熱處理也可在基材精加工及表面披覆層精加工 後進行處理。其他,只要不脫離本發明主旨範圍理所當然 是可加以各種變形實施。 〔產業上之可利用性〕 根據本發明時,可防止表面披覆層於成型溫度產生龜 裂。 【圖式簡單說明】 第1 Η爲表示本發明一實施形態相關的玻璃成型用模 具之製造方法槪要流程圖。 -10-
Claims (1)
- 200848376 十、申請專利範圍 1· 一種玻璃成型用模具之製造方法,其特徵爲: 對鋼製基材施以淬火處理製成由馬氏體組織形成的基 材, 於上述基材的表面,形成由非晶質Ni-P合金形成的 表面披覆層, 接著對上述基材施以加熱處理使其改變成屈氏體( troostite )組織或索氏體(sorbite )組織的同時,使上述 表面披覆層轉變成Ni和Ni3P的共晶組織。 2.如申請專利範圍第1項所記載的玻璃成型用模具 之製造方法,其中,上述基材含碳量爲 0.3 wt%以上且 2.7wt%以下,含鉻量爲13wt%以下。 3 .如申請專利範圍第2項所記載的玻璃成型用模具 之製造方法,其中,上述表面披覆層是經由包括有Ni和 P或Ni和P和B或Ni和P和W的化學鍍處理形成, 上述加熱處理是採比模具使用溫度還高的加熱溫度。 4. 如申請專利範圍第3項所記載的玻璃成型用模具 之製造方法,其中,上述加熱處理是採2 7 0 °c以上的加熱 溫度進行處理。 5. 一種玻璃成型用模具之製造方法,其特徵爲:係 於鋼製基材施以淬火處理後進行深冷處理製成由馬氏體組 織形成的基材, 於上述基材的表面,形成由非晶質Ni-P合金形成的 表面披覆層, -11 - 200848376 接著對上述基材施以加熱處理使其改變成屈氏體( t r ο 〇 s t i t e )組織或索氏體(s 〇 r b i t e )組織的同時,使上述 表面披覆層轉變成Ni和Ni3P的共晶組織。 6. 如申請專利範圍第5項所記載的玻璃成型用模具 之製造方法,其中,上述基材含碳量爲 〇.3wt%以上且 2.7wt%以下,含鉻量爲13wt%以下。 7. 如申請專利範圍第6項所記載的玻璃成型用模具 之製造方法,其中, 上述表面披覆層是經由包括有Ni和P或Ni和P和B 或Ni和P和W的化學鍍處理形成, 上述加熱處理是採比模具使用溫度還高的加熱溫度。 8. 如申請專利範圍第7項所記載的玻璃成型用模具 之製造方法,其中,上述加熱處理是採270 °C以上的加熱 溫度進行處理。 9. 一種玻璃成型用模具之製造方法,其特徵爲:係 於鋼製基材施以淬火處理後進行深冷處理,再加上施以回 火處理藉此製成ε -碳化物分散在馬氏體中的組織所形成 的基材, 於上述基材的表面,形成由非晶質Ni-P合金形成的 表面披覆層, 接著對上述基材施以加熱處理使其改變成屈氏體( troostite)組織或索氏體(sorbite)組織的同時,使上述 表面披覆層轉變成Ni和Ni3P的共晶組織。 10. 如申請專利範圍第9項所記載的玻璃成型用模具 -12- 200848376 之製造方法,其中,上述基材含碳量爲〇.3wt%以上且 2.7wt%以下,含鉻量爲13wt%以下。 11.如申請專利範圍第1 0項所記載的玻璃成型用模 具之製造方法,其中,上述基材的回火溫度爲35(TC以下 〇 1 2 ·如申請專利範圍第1 0項所記載的玻璃成型用模 具之製造方法,其中, 上述表面披覆層,是經由包括有Ni和P或Ni和P和 B或N i和P和W的化學鍍處理形成, 上述加熱處理是採比模具使用溫度還高的加熱溫度。 13.如申請專利範圍第1 2項所記載的玻璃成型用模 具之製造方法,其中,上述加熱處理是採27(TC以上的加 熱溫度進行處理。 -13-
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DE112007003026B4 (de) * | 2006-12-14 | 2011-03-24 | Toshiba Kikai K.K. | Verfahren zur Herstellung eines Glas-Formwerkzeugs |
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TWI365174B (zh) | 2012-06-01 |
KR20090082477A (ko) | 2009-07-30 |
WO2008072665A1 (ja) | 2008-06-19 |
JP5019102B2 (ja) | 2012-09-05 |
DE112007003040B4 (de) | 2013-03-28 |
US20090252866A1 (en) | 2009-10-08 |
DE112007003040T5 (de) | 2010-01-14 |
KR101053749B1 (ko) | 2011-08-02 |
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