JP5234330B2

JP5234330B2 - Mold member for resin molding

Info

Publication number: JP5234330B2
Application number: JP2008107418A
Authority: JP
Inventors: 広和坂井; 克生菅原
Original assignee: Mitsubishi Materials Corp
Current assignee: Mitsubishi Materials Corp
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2013-07-10
Anticipated expiration: 2028-04-17
Also published as: JP2009256729A

Description

この発明は、樹脂、特にフッ素樹脂やポリフェニレンサルファイド樹脂（以下、ＰＰＳ樹脂と記す）を成形するための消耗が少なくかつ耐食性に優れた金型部材に関するものである。 The present invention relates to a mold member that is low in consumption and excellent in corrosion resistance for molding a resin, particularly a fluororesin or a polyphenylene sulfide resin (hereinafter referred to as a PPS resin).

一般に、樹脂を成形するための金型部材としてＮｉ：２０〜６５％（％は質量％を示す。以下、同じ）、Ｃｒ：１０〜３９％、Ｍｏ：０．１〜１０％、Ｃ：０．５５〜２．５％、Ａｌ：０．０１〜４．５％、Ｗ：０．１〜１０％、Ｍｎ：０．１〜２％、Ｓｉ：０．１〜３％を含有し、さらに必要に応じてＮｂ：０．０１〜１．５％、Ｔｉ：０．０１〜４．５％、Ｚｒ：０．００１〜０．２％、Ｂ：０．００１〜０．２％、Ｔａ：０．０１〜１．５％、Ｃｏ：１〜１０％、Ｎ：０．００５〜０．５％の内の１種または２種以上を含有し、残部がＦｅおよび不可避不純物からなる合金が知られている（特許文献１参照）。
さらに、酸性粉末などの腐食性物質を含む粉末や粒体などの原料物質を圧縮して医薬品、医薬部外品、化粧品、農薬、飼料、食料などのタブレット形状に成形するための金型を作製するための部材として、Ｃｒ：２５〜６０％、Ａｌ：０．１〜１０％を含有し、さらにＳｉ、Ｃ、Ｍｎ、Ｍｇ、ＴｉおよびＢから選らばれた少なくとも１種の元素を０．８％以下含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＦｅ、Ｖ、Ｃｏ、Ｃｕ、Ｗ、Ｍｏ、Ｔａ、Ｎｂ、Ｏ、Ｎなどを０．１％以下に調整した成分組成を有するＮｉ−Ｃｒ−Ａｌ系合金が知られており、このＮｉ−Ｃｒ−Ａｌ系合金にはＳｉがＳｉＯ_２として０．００２％混入することは差し支えないとされている（特許文献２参照）。
特公昭６２−１４２１４号公報特開２００１−６２５９４号公報 In general, as a mold member for molding a resin, Ni: 20 to 65% (% indicates mass%. The same applies hereinafter), Cr: 10 to 39%, Mo: 0.1 to 10%, C: 0 0.5 to 2.5%, Al: 0.01 to 4.5%, W: 0.1 to 10%, Mn: 0.1 to 2%, Si: 0.1 to 3%, As required, Nb: 0.01 to 1.5%, Ti: 0.01 to 4.5%, Zr: 0.001 to 0.2%, B: 0.001 to 0.2%, Ta: Known is an alloy containing one or more of 0.01 to 1.5%, Co: 1 to 10%, N: 0.005 to 0.5%, with the balance being Fe and inevitable impurities. (See Patent Document 1).
Furthermore, molds for compacting raw materials such as powders and granules containing corrosive substances such as acidic powders into tablets such as pharmaceuticals, quasi-drugs, cosmetics, agricultural chemicals, feed and food As a member for carrying out, it contains Cr: 25-60%, Al: 0.1-10%, and at least one element selected from Si, C, Mn, Mg, Ti and B is 0.8. The composition is such that Fe, V, Co, Cu, W, Mo, Ta, Nb, O, N, etc. contained as inevitable impurities are adjusted to 0.1% or less. Ni-Cr-Al-based alloy having a Si content is known, and it is considered that 0.002% of Si is mixed as SiO ₂ in this Ni-Cr-Al-based alloy (see Patent Document 2). .
Japanese Examined Patent Publication No. 62-14214 JP 2001-62594 A

近年、各種の樹脂が金型成形されるようになり、フッ素樹脂などのように成形時に腐食性の強いフッ化水素を発生させる樹脂についても金型成形されるようになってきた。また、ＰＰＳ樹脂のように成形時に加熱溶融されると、ＳＯｘ、Ｈ_２Ｓ等の硫黄化合物を含むガスに起因した硫酸を発生させる樹脂も金型成形されるようになってきた。ところが、従来から知られているＮｉ−Ｃｒ−Ａｌ系合金などのＮｉ基合金からなる金型を使用して樹脂、特にフッ素樹脂やＰＰＳ樹脂を成形すると、従来のＮｉ−Ｃｒ−Ａｌ系合金はフッ化水素や硫黄化合物を含むガスに対する耐食性が劣るために、従来のＮｉ−Ｃｒ−Ａｌ系合金などのＮｉ基合金からなる成形用金型は激しく消耗し、金型の寿命が以前と比べて短くなるという欠点があった。特に樹脂を金型へ供給するためのノズル、樹脂を押出すためのスクリュー、押出しピン、逆流防止弁などの金型付属部品は一層過酷な条件で使用されるために消耗が早い。これを改善するために耐食性に一層優れた樹脂金型成形部材が求められていた。 In recent years, various types of resins have been molded, and resins that generate highly corrosive hydrogen fluoride during molding, such as fluororesins, have also been molded. In addition, a resin that generates sulfuric acid due to a gas containing a sulfur compound such as SOx and H ₂ S when it is heated and melted during molding like a PPS resin has been molded. However, when a resin, particularly a fluororesin or a PPS resin, is molded using a conventionally known mold made of a Ni-based alloy such as a Ni-Cr-Al alloy, the conventional Ni-Cr-Al alloy is Due to inferior corrosion resistance to gases containing hydrogen fluoride and sulfur compounds, conventional molds made of Ni-base alloys such as Ni-Cr-Al alloys are consumed violently, and the life of the molds is longer than before. There was a drawback of shortening. In particular, nozzles for supplying the resin to the mold, screws for extruding the resin, extrusion pins, backflow prevention valves and other mold accessory parts are used under more severe conditions and are therefore quickly consumed. In order to improve this, there has been a demand for a resin mold member having further excellent corrosion resistance.

そこで、本発明者らは、樹脂、特にフッ素樹脂やＰＰＳ樹脂を金型成形しても金型が消耗することの少ないＮｉ基合金からなる樹脂金型成形部材を得るべく鋭意研究を行った。
その結果、質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらに必要に応じて
（ａ）Ｎ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％、
（ｂ）Ｆｅ：０．１超〜１．０％、
（ｃ）Ｓｉ：０．０１〜２．０％未満、
（ｄ）Ａｌ：０．０１〜１．５％未満、
上記（ａ）〜（ｄ）の内の１種または２種以上を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した成分組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金は、従来のＮｉ基合金とほぼ同等の硬さを有し、さらに従来のＮｉ基合金に比べてフッ化水素や硫黄化合物を含むガスに対する耐食性が一層優れており、このＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる金型を用いて樹脂、特にフッ素樹脂やＰＰＳ樹脂を成形すると金型の消耗を低く抑えることができ、したがって、この金型の使用寿命が長くなる、という研究結果が得られたのである。 Accordingly, the present inventors have intensively studied to obtain a resin mold forming member made of a Ni-based alloy that does not consume a mold even when a resin, particularly a fluororesin or a PPS resin is molded.
As a result, it contains Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, and (a) N: 0.001 as necessary. -0.04%, Mn: 0.05-0.5%, Mg: 0.001-0.05%,
(B) Fe: more than 0.1 to 1.0%,
(C) Si: 0.01 to less than 2.0%,
(D) Al: 0.01 to less than 1.5%,
One or more of the above (a) to (d) are contained, the remainder is composed of Ni and inevitable impurities, and the component composition is adjusted to 0.05% or less of the amount of C contained as inevitable impurities Ni-Cr-Ti-Cu-based alloys have almost the same hardness as conventional Ni-based alloys, and are more excellent in corrosion resistance to gases containing hydrogen fluoride and sulfur compounds than conventional Ni-based alloys. In addition, if a resin, particularly a fluororesin or a PPS resin is molded using a mold made of this Ni—Cr—Ti—Cu alloy, the consumption of the mold can be kept low. The result of the study was that it would be long.

この発明は、かかる研究結果に基づいてなされたものであって、
（１）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（２）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（３）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（４）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（５）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（６）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（７）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（８）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（９）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１０）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１１）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１２）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１３）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１４）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１５）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１６）質量％で、Ｃｒ：４０超〜５０％、Ｔｉ：０．８超〜４％、Ｃｕ：０．５〜４％を含有し、さらにＮ：０．００１〜０．０４％、Ｍｎ：０．０５〜０．５％、Ｍｇ：０．００１〜０．０５％を含有し、さらにＦｅ：０．１超〜１．０％を含有し、さらにＳｉ：０．０１〜２．０％未満を含有し、さらにＡｌ：０．０１〜１．５％未満を含有し、残部がＮｉおよび不可避不純物からなり、不可避不純物として含まれるＣ量を０．０５％以下に調整した組成を有するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材、
（１７）前記（１）〜（１６）記載の樹脂成形用金型部材からなる樹脂成形用金型、に特徴を有するものである。 The present invention has been made based on the results of such research,
(1) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, with the balance consisting of Ni and inevitable impurities, included as inevitable impurities A mold member for resin molding comprising a Ni—Cr—Ti—Cu based alloy having a composition in which the amount of C produced is adjusted to 0.05% or less,
(2) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, further N: 0.001-0.04%, Mn : 0.05-0.5%, Mg: 0.001-0.05%, the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less A mold member for resin molding comprising a Ni-Cr-Ti-Cu-based alloy having
(3) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, Fe: more than 0.1 to 1.0% A mold member for resin molding comprising a Ni—Cr—Ti—Cu alloy having a composition in which the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less,
(4) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Si: 0.01 to less than 2.0% A mold member for resin molding comprising a Ni—Cr—Ti—Cu alloy having a composition in which the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less,
(5) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, Al: 0.01 to less than 1.5% A mold member for resin molding comprising a Ni—Cr—Ti—Cu alloy having a composition in which the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less,
(6) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, N: 0.001-0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, further Fe: more than 0.1 to 1.0%, the balance consists of Ni and inevitable impurities, unavoidable A mold member for resin molding made of a Ni—Cr—Ti—Cu based alloy having a composition in which the amount of C contained as an impurity is adjusted to 0.05% or less,
(7) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, further N: 0.001-0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, further Si: 0.01 to less than 2.0%, the balance consists of Ni and inevitable impurities, unavoidable A mold member for resin molding made of a Ni—Cr—Ti—Cu based alloy having a composition in which the amount of C contained as an impurity is adjusted to 0.05% or less,
(8) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, N: 0.001-0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, further Al: 0.01 to less than 1.5%, the balance consists of Ni and inevitable impurities, unavoidable A mold member for resin molding made of a Ni—Cr—Ti—Cu based alloy having a composition in which the amount of C contained as an impurity is adjusted to 0.05% or less,
(9) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, Fe: more than 0.1 to 1.0% Ni-Cr having a composition in which Si: 0.01 to less than 2.0% is contained, the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less -Mold member for resin molding made of Ti-Cu alloy,
(10) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, Fe: more than 0.1 to 1.0% Ni-Cr having a composition in which Al: 0.01 to less than 1.5% is contained, the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less -Mold member for resin molding made of Ti-Cu alloy,
(11) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Si: 0.01 to less than 2.0% Ni-Cr having a composition in which Al: 0.01 to less than 1.5% is contained, the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less -Mold member for resin molding made of Ti-Cu alloy,
(12) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, further N: 0.001-0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, Fe: more than 0.1 to 1.0%, Si: 0.01 to 2.0 Resin-molding mold comprising a Ni—Cr—Ti—Cu-based alloy having a composition in which the balance is comprised of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less. Element,
(13) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, further N: 0.001-0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, Fe: more than 0.1 to 1.0%, Al: 0.01 to 1.5 Resin-molding mold comprising a Ni—Cr—Ti—Cu-based alloy having a composition in which the balance is comprised of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less. Element,
(14) By mass%, Cr: more than 40-50%, Ti: more than 0.8-4%, Cu: 0.5-4%, further N: 0.001-0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, Si: 0.01 to less than 2.0%, Al: 0.01 to 1.5 Resin-molding mold comprising a Ni—Cr—Ti—Cu-based alloy having a composition in which the balance is comprised of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less. Element,
(15) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, Fe: more than 0.1 to 1.0% And further containing Si: 0.01 to less than 2.0%, further containing Al: 0.01 to less than 1.5%, the balance consisting of Ni and inevitable impurities, and C contained as inevitable impurities A mold member for resin molding comprising a Ni-Cr-Ti-Cu-based alloy having a composition adjusted to an amount of 0.05% or less,
(16) By mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn : 0.05 to 0.5%, Mg: 0.001 to 0.05%, Fe: more than 0.1 to 1.0%, Si: 0.01 to 2.0 %, Further containing Al: 0.01 to less than 1.5%, the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less. A mold member for resin molding made of a Ni-Cr-Ti-Cu alloy,
(17) The present invention is characterized by a resin molding die comprising the resin molding die member described in (1) to (16).

前記（１）〜（１６）記載のＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金からなる樹脂成形用金型部材は、時効硬化させて所望の硬さを得ることが一層好ましい。したがって、この発明は、
（１８）前記（１）〜（１６）記載の樹脂成形用金型部材を時効析出により硬化させた樹脂成形用金型部材、
（１９）前記（１８）に記載の時効析出により硬化させた樹脂成形用金型部材からなる樹脂成形用金型、に特徴を有するものである。 More preferably, the resin-molding mold member made of the Ni—Cr—Ti—Cu alloy described in the above (1) to (16) is age-hardened to obtain a desired hardness. Therefore, the present invention
(18) A resin molding die member obtained by curing the resin molding die member according to (1) to (16) by aging precipitation,
(19) The present invention is characterized by a resin molding die comprising a resin molding die member cured by aging precipitation as described in (18).

さらに前記（１）〜（１６）および（１８）記載の樹脂成形用金型部材は、樹脂成形用金型本体を構成する部材として有用であるとともに、特に高圧を受けて流動する樹脂に接する金型の付属部品（例えば、射出成形ノズル、樹脂を押出すためのスクリュー、押出しピン、逆流防止弁などの）の部材として優れた効果を奏するものである。したがって、この発明は、
（２０）前記（１）〜（１６）および（１８）記載の樹脂成形用金型部材からなる樹脂成形用金型付属部品、などに特徴を有するものである。 Furthermore, the resin molding die member described in the above (1) to (16) and (18) is useful as a member constituting the resin molding die main body, and in particular, a metal that contacts a resin that flows under high pressure. It has an excellent effect as a member of a mold accessory (for example, an injection molding nozzle, a screw for extruding a resin, an extrusion pin, a backflow prevention valve, etc.). Therefore, the present invention
(20) The present invention is characterized by a resin molding die accessory part including the resin molding die member described in (1) to (16) and (18).

次に、この発明の樹脂成形用金型部材を構成するＮｉ−Ｃｒ−Ｔｉ−Ｃｕ系合金の成分組成における各元素の限定理由について詳述する。
Ｃｒ：
Ｃｒは耐食性を向上させる作用および時効硬化によって耐摩耗性を向上させる作用を有するので添加する。この発明のＮｉ基合金は、固溶化熱処理により、一旦、加工が容易な過飽和固溶体とし、最終形状の近くまで一次加工したのちに、時効硬化させて所望の硬さを得、最終形状に仕上げることにより所望の金型の形状を付与することができる。一旦固溶体を形成させたのちに時効析出させることにより微細で均一な析出物を分散させることも可能である。析出物が分散している状態は固溶体の状態に比べて耐食性劣化がもたらされる。析出時効によって所望の硬度と時効硬化後に耐食性劣化を抑制するためにはＣｒを４０％を越えて含有させることが必要である。しかしＣｒの含有量が５０％を超えて含有すると固溶体の形成が困難となるために一次加工が困難となると同時に時効後に十分な硬度が得られなくなるので好ましくない。従って、この発明の樹脂成形用金型部材に含まれるＣｒは４０超〜５０％に定めた。一層好ましくは、４３．１〜４７％である。 Next, the reason for limitation of each element in the component composition of the Ni—Cr—Ti—Cu based alloy constituting the resin molding die member of the present invention will be described in detail.
Cr:
Cr is added because it has the effect of improving corrosion resistance and the effect of improving wear resistance by age hardening. The Ni-based alloy of the present invention is formed into a supersaturated solid solution that can be easily processed by solution heat treatment, and after primary processing to the vicinity of the final shape, it is age-hardened to obtain the desired hardness and finished to the final shape. Thus, a desired mold shape can be provided. It is also possible to disperse fine and uniform precipitates by once forming a solid solution and then performing aging precipitation. The state in which the precipitates are dispersed results in deterioration in corrosion resistance as compared with the solid solution state. In order to suppress corrosion resistance deterioration after desired hardness and age hardening by precipitation aging, it is necessary to contain Cr exceeding 40%. However, if the Cr content exceeds 50%, formation of a solid solution becomes difficult, so that primary processing becomes difficult and at the same time sufficient hardness cannot be obtained after aging, which is not preferable. Therefore, Cr contained in the mold member for resin molding of the present invention is determined to be more than 40 to 50%. More preferably, it is 43.1 to 47%.

Ｔｉ：
ＴｉはＣｒと共存させることにより粒界反応型析出による析出硬化を促進する元素であるので添加するが、その含有量が０．８％以下では所望の効果が得られず、一方、Ｔｉを４％を越えて含有すると、鍛造中に割れが発生するので好ましくない。したがって、Ｔｉの含有量を０．８超〜４％の範囲内に定めた。一層好ましい範囲は１．５超〜３％である。 Ti:
Ti is added because it is an element that promotes precipitation hardening by grain boundary reaction type precipitation when coexisting with Cr. However, if its content is 0.8% or less, a desired effect cannot be obtained, while Ti is added to 4%. If the content exceeds 50%, cracking occurs during forging, which is not preferable. Therefore, the Ti content is determined to be in the range of more than 0.8 to 4%. A more preferable range is more than 1.5 to 3%.

Ｃｕ：
Ｃｕはフッ酸や硫酸中における耐食性を向上させる効果があるので添加するが、その含有量が０．５％未満では所望の効果が得られず、一方、４％を越えて含有するとかえって耐食性が劣化することからその含有量を０．５〜４％に定めた。一層好ましい範囲は１．５〜３％である。 Cu:
Cu is added because it has the effect of improving the corrosion resistance in hydrofluoric acid and sulfuric acid. However, if the content is less than 0.5%, the desired effect cannot be obtained. On the other hand, if it exceeds 4%, the corrosion resistance is rather low. Since it deteriorates, the content was set to 0.5 to 4%. A more preferable range is 1.5 to 3%.

Ｎ、ＭｎおよびＭｇ：
Ｎ、ＭｎおよびＭｇを共存させることにより相安定性を向上させることができるので必要に応じて添加する。すなわち、Ｎ、ＭｎおよびＭｇは母相であるＮｉ−ｆｃｃ相を安定化させ、第２相を析出しにくくする効果がある。これにより耐食性に有効な元素であるＣｒなどを４０％を超えて含有しても短時間で析出しにくくなり、製造上扱いやすくなるメリットを享受することができる。すなわち、本発明合金を製造するに際して溶解後のインゴットを熱間鍛造や熱間圧延などの熱間加工工程を経ることとなるが、短時間で析出が生じてしまうと、割れなどが発生し、所望の形状への加工が困難となる。したがって、Ｎ、ＭｎおよびＭｇを共存させることが必要であるが、Ｎ、ＭｎおよびＭｇの個々の限定理由は、以下のとおりである。
Ｎ：
Ｎの含有量が０．００１％未満では相安定化の効果がなく、一方、Ｎが０．０４％を越えて含有すると窒化物を形成し、フッ酸や硫酸中における耐食性が劣化するためにＮの含有量を０．００１〜０．０４％に定めた。一層好ましい範囲は０．００５〜０．０３％である。
Ｍｎ：
Ｍｎの含有量が０．０５％未満では相安定化の効果が得られないので好ましくなく、一方、０．５％を超えて含有するとフッ酸や硫酸に対する耐食性が低下するので好ましくない。したがって、Ｍｎの含有量を０．０５〜０．５％（一層好ましくは、０．１％〜０．４％）とした。
Ｍｇ：
Ｍｇの含有量が０．００１％未満では相安定化の効果が得られないので好ましくなく、一方、その含有量が０．０５％を越えて含有すると、フッ酸や硫酸に対する耐食性が低下するので好ましくない。したがって、Ｍｇ含有量を０．００１〜０．０５％に定めた。一層好ましい範囲は０．００５〜０．０４％である。 N, Mn and Mg:
Since phase stability can be improved by coexisting N, Mn and Mg, they are added as necessary. That is, N, Mn, and Mg have the effect of stabilizing the Ni-fcc phase that is the parent phase and making the second phase difficult to precipitate. As a result, even if Cr, which is an element effective for corrosion resistance, is contained in excess of 40%, it is difficult to precipitate in a short time, and it is possible to enjoy the merit of being easy to handle in manufacturing. In other words, when producing the alloy of the present invention, the ingot after melting is subjected to a hot working process such as hot forging or hot rolling, but if precipitation occurs in a short time, cracking occurs, Processing into a desired shape becomes difficult. Therefore, it is necessary for N, Mn, and Mg to coexist. The reasons for limiting N, Mn, and Mg are as follows.
N:
If the N content is less than 0.001%, there is no effect of phase stabilization. On the other hand, if N exceeds 0.04%, a nitride is formed, and the corrosion resistance in hydrofluoric acid or sulfuric acid deteriorates. The N content was determined to be 0.001 to 0.04%. A more preferable range is 0.005 to 0.03%.
Mn:
If the content of Mn is less than 0.05%, the effect of stabilizing the phase cannot be obtained, which is not preferable. On the other hand, if the content exceeds 0.5%, the corrosion resistance against hydrofluoric acid or sulfuric acid is lowered, which is not preferable. Therefore, the Mn content is set to 0.05 to 0.5% (more preferably, 0.1% to 0.4%).
Mg:
If the Mg content is less than 0.001%, the effect of stabilizing the phase cannot be obtained, which is not preferable. On the other hand, if the content exceeds 0.05%, the corrosion resistance against hydrofluoric acid and sulfuric acid is reduced. It is not preferable. Therefore, the Mg content is set to 0.001 to 0.05%. A more preferable range is 0.005 to 0.04%.

Ｆｅ：
Ｆｅは加工性を向上させる作用および不純物の偏析を抑制し、特に溶融フッ素樹脂に対する耐食性劣化を防止する効果があるので必要に応じて添加するが、その含有量が０．１％以下では前記作用に所望の効果が得られず、一方、Ｆｅを１％を越えて含有すると却って溶融フッ素樹脂に対する耐食性が劣化するので好ましくない。したがって、Ｆｅの含有量を０．１超〜１％に定めた。一層好ましい範囲は０．１超〜０．５％未満である。 Fe:
Fe improves workability and suppresses segregation of impurities, and in particular, has an effect of preventing deterioration of corrosion resistance against molten fluororesin, so it is added as necessary. On the other hand, if Fe exceeds 1%, the corrosion resistance to the molten fluororesin is deteriorated. Therefore, the Fe content is determined to be more than 0.1 to 1%. A more preferred range is from more than 0.1 to less than 0.5%.

Ｓｉ：
Ｓｉは脱酸剤として添加することにより合金の清浄度を保つ効果があるので必要に応じて添加するが、Ｓｉは０．０１％未満では前記作用に所望の効果が現れないので好ましくなく、一方、Ｓｉを２％以上含有すると、溶融フッ素樹脂に対する耐食性が劣化するので好ましくない。したがって、Ｓｉの含有量を０．０１〜２％未満に定めた。一層好ましい範囲は０．０２〜０．０６％である。 Si:
Since Si has the effect of maintaining the cleanliness of the alloy by adding it as a deoxidizer, it is added as necessary. However, if Si is less than 0.01%, the desired effect does not appear in the above action, which is not preferable. If Si is contained in an amount of 2% or more, the corrosion resistance against the molten fluororesin is deteriorated. Therefore, the content of Si is set to 0.01 to less than 2%. A more preferable range is 0.02 to 0.06%.

Ａｌ：
Ａｌは添加することにより硬度を増す作用を有するが、その含有量が０．０１％未満では所望の効果が得られず、一方、Ａｌが１．５％以上含有すると、溶体化処理後の硬さが高くなりすぎて成形加工時に割れが発生しやすくなり、さらに切削加工性および延性などが低下するので好ましくない。したがって、Ａｌ：０．０１〜１．５％未満の範囲内に定めた。一層好ましい範囲は０．０１〜０．１％未満である。 Al:
Al has the effect of increasing the hardness when added, but if its content is less than 0.01%, the desired effect cannot be obtained. On the other hand, if Al is contained in an amount of 1.5% or more, the hardness after solution treatment is not obtained. This is not preferable because the thickness becomes too high and cracks are likely to occur during the molding process, and further the machinability and ductility are lowered. Therefore, Al: It was determined within a range of 0.01 to less than 1.5%. A more preferable range is 0.01 to less than 0.1%.

不可避不純物：
Ｃは結晶粒界近傍でＣｒと炭化物を形成し、耐食性を劣化させる。そのために不可避不純物として含まれるＣを０．０５％以下に定めた。 Inevitable impurities:
C forms carbides with Cr in the vicinity of the grain boundaries, and deteriorates the corrosion resistance. Therefore, C contained as an inevitable impurity is set to 0.05% or less.

この発明の成分組成を有する樹脂成形用金型材は、フッ酸化や硫酸、したがって溶融フッ素樹脂や溶融ＰＰＳ樹脂に対する耐食性が優れており、さらに従来の樹脂成形用金型材とほぼ同等の硬さを有することから、樹脂成形用の各種金型、特にフッ素樹脂やＰＰＳ樹脂を成形するための金型、その中でも特に苛酷な環境に曝される金型の付属部品（例えば、射出成形ノズル、樹脂を押出すためのスクリュー、押出しピン、逆流防止弁などの）の部材として使用することにより優れた効果をもたらすものである。 The mold material for resin molding having the component composition of the present invention is excellent in corrosion resistance to hydrofluoric acid and sulfuric acid, and thus molten fluororesin and molten PPS resin, and has almost the same hardness as that of a conventional mold material for resin molding. Therefore, various molds for resin molding, particularly molds for molding fluororesins and PPS resins, and particularly, mold accessories that are exposed to particularly harsh environments (for example, injection molding nozzles, resin presses). When used as a member of a screw, a push-out pin, a backflow prevention valve, etc.), an excellent effect is brought about.

実施例１
いずれもＣ含有量の少ない原料を用意し、これらを通常の真空高周波溶解炉を用いて溶解し鋳造した後、熱間鍛造および熱間圧延して表１〜７に示される成分組成を有する本発明金型部材１〜９５、比較金型部材１〜７および従来金型部材１からなる直径：４０ｍｍを有する丸棒を作製した。これら丸棒を１２００℃で１時間保持したのち水焼入れを行うことにより固溶化処理を施した。これら固溶化処理を施した本発明金型部材１〜９５、比較金型部材１〜７および従来金型部材１からなる丸棒を切削加工した後、本発明金型部材１〜９５、比較金型部材１〜７および従来金型部材１からなる丸棒には７００℃に３０時間保持の時効処理を施し、その後、時効処理した丸棒のビッカース硬さを測定し、その結果を表８〜１１に示した。 Example 1
All of the materials having the component compositions shown in Tables 1 to 7 are prepared by preparing raw materials with a low C content, melting and casting them using a normal vacuum high-frequency melting furnace, hot forging and hot rolling. Inventive mold members 1 to 95, comparative mold members 1 to 7 and a conventional mold member 1 having a diameter of 40 mm were prepared. These round bars were held at 1200 ° C. for 1 hour and then subjected to water quenching to perform a solution treatment. After cutting the round bar which consists of this invention mold members 1-95, comparative mold members 1-7, and the conventional mold member 1 which gave these solid solution processing, this invention mold members 1-95, comparative mold The round bars composed of the mold members 1 to 7 and the conventional mold member 1 were subjected to an aging treatment of holding at 700 ° C. for 30 hours, and then the Vickers hardness of the round bars subjected to the aging treatment was measured. 11 shows.

さらに時効処理した丸棒をそれぞれ仕上げ加工することにより図１の断面図に示される形状の射出成形用ノズルを作製した。図１において、１は射出成形用ノズル、２はノズル本体部分、３はノズル本体孔、４は小径突出部分、５はノズル先端孔、Ｄ１はノズル本体部分の外径、Ｄ２は小径突出部分の外径、ｄ１はノズル本体孔の直径、ｄ２はノズル先端孔の直径、Ｌ１：ノズル全体の長さ、Ｌ２はノズル先端からの長さ、Ｌ３はノズル先端孔の長さ、Ｌ４は小径突出部分の長さであり、これらはＤ１：３５ｍｍ、Ｄ２：１２ｍｍ、ｄ１：１０ｍｍ、ｄ２：５ｍｍ、Ｌ１：５０ｍｍ、Ｌ２：１０ｍｍ、Ｌ３：８ｍｍ、Ｌ４：５ｍｍの寸法を有している。 Further, each of the aging-treated round bars was finished to produce an injection molding nozzle having the shape shown in the sectional view of FIG. In FIG. 1, 1 is an injection molding nozzle, 2 is a nozzle body portion, 3 is a nozzle body hole, 4 is a small diameter protruding portion, 5 is a nozzle tip hole, D1 is an outer diameter of the nozzle body portion, and D2 is a small diameter protruding portion. Outer diameter, d1 is the diameter of the nozzle body hole, d2 is the diameter of the nozzle tip hole, L1: length of the entire nozzle, L2 is the length from the nozzle tip, L3 is the length of the nozzle tip hole, and L4 is the small diameter protruding portion These have dimensions of D1: 35 mm, D2: 12 mm, d1: 10 mm, d2: 5 mm, L1: 50 mm, L2: 10 mm, L3: 8 mm, L4: 5 mm.

これら本発明金型部材１〜９５、比較金型部材１〜７および従来金型部材１からなる射出成形用ノズルを射出成形機に組み込み、シリンダーおよびノズル温度：３２０℃、射出圧力：９０ＭＰａの条件でフッ素樹脂の１種であるＰＶＤＦ樹脂および硫酸を発生させる樹脂であるＰＰＳ樹脂の射出成形をそれぞれ１万回行い、１万回射出成形した後の射出成形用ノズルのノズル先端孔の直径を測定し、１万回射出成形した後の射出成形用ノズルのノズル先端孔の直径から射出成形前のノズル先端孔の直径を引いて最大減肉量を測定し、その結果を表８〜１１に示した。 The injection molding nozzle comprising these mold members 1 to 95 of the present invention, comparative mold members 1 to 7 and the conventional mold member 1 is incorporated in an injection molding machine, and conditions of cylinder and nozzle temperature: 320 ° C., injection pressure: 90 MPa. The injection molding of PVDF resin, which is a kind of fluororesin, and PPS resin, which generates sulfuric acid, is performed 10,000 times, and the diameter of the nozzle tip hole of the injection molding nozzle is measured after injection molding 10,000 times. The maximum thickness reduction was measured by subtracting the diameter of the nozzle tip hole before injection molding from the diameter of the nozzle tip hole of the injection molding nozzle after 10,000 injection moldings, and the results are shown in Tables 8 to 11 It was.

さらに、表１〜７に示される成分組成を有する本発明金型部材１〜９５、比較金型部材１〜７および従来金型部材１からなる直径：４０ｍｍを有する丸棒を用いて、縦：２５ｍｍ、横：２５ｍｍ、厚さ：３ｍｍの寸法を有する腐食試験片を作製した。これら試験片の表面を研摩し、最終的に耐水エメリー紙＃４００仕上げとした。研磨後の腐食試験片をアセトン中超音波振動情態に５分間保持し、その後、脱脂した。これを２５℃に保持した５０％ＨＦ溶液および６５℃に保持した１０％Ｈ_２ＳＯ_４溶液にそれぞれ１００時間保持の浸漬試験を行うことにより試験前後で減少した質量を表面積で割り、単位面積当たりの質量減少量を算出し、比重値＝８として腐食速度（ｍｍ／ｙｅａｒ）を表８〜１１に示した。 Furthermore, using a round bar having a diameter of 40 mm made of the present invention mold members 1 to 95 having the composition shown in Tables 1 to 7, comparative mold members 1 to 7 and the conventional mold member 1, the length: A corrosion test piece having dimensions of 25 mm, width: 25 mm, and thickness: 3 mm was produced. The surfaces of these test pieces were polished and finally finished with water-resistant emery paper # 400. The polished corrosion test piece was kept in an ultrasonic vibration state in acetone for 5 minutes, and then degreased. A 50% HF solution kept at 25 ° C. and a 10% H ₂ SO ₄ solution kept at 65 ° C. were each immersed in a test for 100 hours. The mass reduction amount was calculated, and the specific gravity value = 8, and the corrosion rate (mm / year) is shown in Tables 8-11.

表１〜１１に示された結果から、本発明金型部材１〜９５は従来金型部材１に比べて腐食速度が小さく、さらに本発明金型部材１〜９５からなる射出成形用ノズルは、従来金型部材１からなる射出成形用ノズルに比べて射出成形による最大減肉量が小さいことから、本発明金型部材１〜９５は従来金型部材１に比べてフッ化水素および硫黄化合物に対する耐食性が優れているが分かる。しかし、この発明から外れた比較金型部材１〜７は鍛造時に割れが発生したり、最大減肉量および腐食速度がやや大きくなるなど好ましくないことが分かる。 From the results shown in Tables 1 to 11, the present invention mold members 1 to 95 have a lower corrosion rate than the conventional mold member 1, and the injection molding nozzle composed of the present mold members 1 to 95 is Since the maximum thickness reduction by injection molding is small compared to the injection molding nozzle made of the conventional mold member 1, the present invention mold members 1 to 95 are more resistant to hydrogen fluoride and sulfur compounds than the conventional mold member 1. You can see that the corrosion resistance is excellent. However, it can be seen that the comparative mold members 1 to 7 that deviate from the present invention are not preferable, such as cracking during forging, and the maximum thickness reduction and the corrosion rate are slightly increased.

実施例で使用した射出成形用ノズルの断面図である。It is sectional drawing of the nozzle for injection molding used in the Example.

Claims

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, the balance consisting of Ni and inevitable impurities, the amount of C contained as inevitable impurities It consists of a Ni-Cr-Ti-Cu-type alloy which has a composition adjusted to 0.05% or less.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. Ni containing 0.5 to 0.5%, Mg: 0.001 to 0.05%, the balance being Ni and inevitable impurities, and having a composition in which the amount of C contained as inevitable impurities is adjusted to 0.05% or less A resin-molding mold member comprising a Cr-Ti-Cu alloy.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Fe: more than 0.1 to 1.0%, Resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition in which the balance is made of Ni and inevitable impurities and the amount of C contained as inevitable impurities is adjusted to 0.05% or less .

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Si: 0.01 to less than 2.0%, Resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition in which the balance is made of Ni and inevitable impurities and the amount of C contained as inevitable impurities is adjusted to 0.05% or less .

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Al: 0.01 to less than 1.5%, Resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition in which the balance is made of Ni and inevitable impurities and the amount of C contained as inevitable impurities is adjusted to 0.05% or less .

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. Contains 0.5 to 0.5%, Mg: 0.001 to 0.05%, further Fe: more than 0.1 to 1.0%, the balance is made of Ni and inevitable impurities, and included as inevitable impurities A resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition in which the amount of C produced is adjusted to 0.05% or less.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. Contains 0.5 to 0.5%, Mg: 0.001 to 0.05%, further Si: 0.01 to less than 2.0%, the balance is made of Ni and inevitable impurities, and included as inevitable impurities A resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition in which the amount of C produced is adjusted to 0.05% or less.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. Contains 0.5 to 0.5%, Mg: 0.001 to 0.05%, further contains Al: 0.01 to less than 1.5%, the balance is made of Ni and inevitable impurities, and is included as inevitable impurities A resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition in which the amount of C produced is adjusted to 0.05% or less.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Fe: more than 0.1 to 1.0%, Furthermore, Ni: Cr-Ti- having a composition containing Si: 0.01 to less than 2.0%, the balance being Ni and unavoidable impurities, and adjusting the amount of C contained as unavoidable impurities to 0.05% or less. A mold member for resin molding, comprising a Cu-based alloy.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Fe: more than 0.1 to 1.0%, Furthermore, Al: 0.01 to less than 1.5%, the balance being Ni and inevitable impurities, Ni—Cr—Ti— having a composition in which the amount of C contained as inevitable impurities is adjusted to 0.05% or less A mold member for resin molding, comprising a Cu-based alloy.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Si: 0.01 to less than 2.0%, Furthermore, Al: 0.01 to less than 1.5%, the balance being Ni and inevitable impurities, Ni—Cr—Ti— having a composition in which the amount of C contained as inevitable impurities is adjusted to 0.05% or less A mold member for resin molding, comprising a Cu-based alloy.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. 0.5 to 0.5%, Mg: 0.001 to 0.05%, Fe: more than 0.1 to 1.0%, Si: 0.01 to less than 2.0% For resin molding, comprising Ni and Cr, an inevitable impurity, and a Ni-Cr-Ti-Cu alloy having a composition in which the amount of C contained as an inevitable impurity is adjusted to 0.05% or less Mold member.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. 0.5 to 0.5%, Mg: 0.001 to 0.05%, Fe: more than 0.1 to 1.0%, Al: 0.01 to less than 1.5% For resin molding, comprising Ni and Cr, an inevitable impurity, and a Ni-Cr-Ti-Cu alloy having a composition in which the amount of C contained as an inevitable impurity is adjusted to 0.05% or less Mold member.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. 0.5 to 0.5%, Mg: 0.001 to 0.05%, Si: 0.01 to less than 2.0%, Al: 0.01 to less than 1.5% For resin molding, comprising Ni and Cr, an inevitable impurity, and a Ni-Cr-Ti-Cu alloy having a composition in which the amount of C contained as an inevitable impurity is adjusted to 0.05% or less Mold member.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further Fe: more than 0.1 to 1.0%, Further, Si: 0.01 to less than 2.0%, Al: 0.01 to less than 1.5%, the balance consists of Ni and inevitable impurities, the amount of C contained as inevitable impurities is 0 A resin-molding mold member comprising a Ni-Cr-Ti-Cu-based alloy having a composition adjusted to 0.05% or less.

In mass%, Cr: more than 40 to 50%, Ti: more than 0.8 to 4%, Cu: 0.5 to 4%, further N: 0.001 to 0.04%, Mn: 0.00. 0.5 to 0.5%, Mg: 0.001 to 0.05%, Fe: more than 0.1 to 1.0%, Si: 0.01 to less than 2.0% Ni-Cr having a composition in which Al: 0.01 to less than 1.5% is contained, the balance is made of Ni and inevitable impurities, and the amount of C contained as inevitable impurities is adjusted to 0.05% or less A resin-molding mold member comprising a Ti-Cu alloy.

A resin molding die comprising the resin molding die member according to any one of claims 1 to 16.

A mold member for resin molding, wherein the mold member for resin molding according to any one of claims 1 to 16 is cured by aging precipitation.

A resin molding die comprising the resin molding die member cured by aging precipitation according to claim 18.

A resin molding die accessory comprising the resin molding die member according to any one of claims 1 to 16 and 18.