JPS6072635A - Production of casting mold - Google Patents
Production of casting moldInfo
- Publication number
- JPS6072635A JPS6072635A JP17954283A JP17954283A JPS6072635A JP S6072635 A JPS6072635 A JP S6072635A JP 17954283 A JP17954283 A JP 17954283A JP 17954283 A JP17954283 A JP 17954283A JP S6072635 A JPS6072635 A JP S6072635A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- mold
- resin
- sand
- high frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は鋼鋳物及び球状黒鉛嗣鉄Jf1物τ有俄自硬性
@型で鋳造丁々に当り、硫黄を含有丁ゐ硬化剤を使用し
た場曾V(夫々発生子ゐクランク及び無鉛形状の片状仕
丁ゐことτ防止丁ゐ鋳型盆提供丁ゐ砂型の製造方法に関
すゐ。DETAILED DESCRIPTION OF THE INVENTION The present invention deals with the casting of steel castings and spheroidal graphite iron Jf1 products with self-hardening@types, and the use of sulfur-containing hardening agents. Regarding the manufacturing method of sand molds provided by cranks and lead-free flaky molds, τ prevention molds and mold trays.
従来の有機自硬性砂を室藺硬化で造型丁ゐ時は、相当に
強い酸か必要であるためスルホンば又は硫ばか使用芒n
ゐ0このため鋼鋳物でに硬化剤中の硫黄が侵入してクラ
ック発失の原因となゐし、球状黒鉛鋳鉄の浴融に、黒鉛
形状τ球状仕丁ゐため脱硫しであるので1周囲(f(伏
貢が存在丁ゐとこ扛が侵入して、黒鉛の形状2片状化す
ゐ〇
不発明は前記問題点て改良丁べ(なさnだもので砂粒子
にフラン樹脂、ンエノール側脂又はフラン変性フェノ−
ルミ4脂で王城分と丁ゐワニスを砂粒子に対して0.5
〜5九肯%、及び@ば、しゆう酸、酢酸力島ら辿は才り
ゐ少くとも14tij以上の硬化剤ヶ砂粒子に対して0
,05〜1.0爪拓%加えて混線し、こ扛ン模型に光填
したのち、10〜100鉦11zの高周波電力によって
カロ熱して咬化すせることt%徴と丁ゐものでめゐ〇本
発明においては砂型中り粘結剤及び硬化卸」の誘電損の
ため高周波電力り印)JD Kよ!;l 90 パc程
度に力lI熱さfLゐので、しゆつ酸で代表さnる有機
酸イ使化ハ1jによっても有慎目映牲位J脂ワニスtじ
ゅうぶん硬化させることができる0したがってこの鋳m
τ使用した場8に、饋黄に基囚丁ゐ@造久陥げ防止さf
L7)。When molding conventional organic self-hardening sand using indoor hardening, a considerably strong acid is required, so sulfone or sulfur acid is not used.
ゐFor this reason, sulfur in the hardening agent enters into steel castings and causes cracks to develop.When melting the spheroidal graphite cast iron, the graphite shape is spherical and desulfurization is required. If there is a deposit, the graphite will penetrate into the graphite and the graphite will become flaky. Furan modified pheno
Rumi 4 fat Ojobu and Dingi varnish 0.5 to sand particles
~ 59%, and @ba, oxalic acid, acetic acid, etc. are suitable for hardening agents of at least 14 tij and 0 for sand particles.
, 05-1.0% nail polishing is added, cross-wired, and the model is filled with light, after which it is heated with high frequency power of 10-100 11z to make it harden. 〇In the present invention, high frequency power is required due to the dielectric loss of the binder and hardening agent in the sand mold) JD K! Since the power and heat are approximately 90%, the varnish can be cured with care by using an organic acid such as citric acid. This cast m
In the scene 8 when using τ, Kikucho is used to prevent the fall of Fenghu.
L7).
また1不発ψJに裏ゐM愼酸硬化剤は南似自映牲イ幻廁
ヲニスの硬化に対して室部におりる触媒作用が弱く、湯
度が60〜100°Cに上ケ1.シた状態でのみ作用効
果が発揮さ扛々ため、成形1での砂の可1史時間が艮(
、尚周波C(よ、り線型加熱さス′シたとさけ急速に映
化丁ゐので、小形の甲子忙多数作#丁ゐ楠曾に有効な造
型法を提供するO
硬化剤の塵カロ気を砂に対して0,05〜1. Q j
Ji童7oとしたのiqo、os*蛍%禾満で汀、刀口
熱しても硬化が進行しないし% 10亜jji′%を超
えるときはM機成であっても砂撤が40 ”c =越λ
−ゐ場@には鹸化反応が開始を扛、口T使時間が短くな
ることと、砂中の水分が過剰とな、!lll峻化が遅く
なゐためであゐ。In addition, the acid hardener used in 1 misfire ψJ has a weak catalytic effect on the hardening of the varnish in the chamber, and the hot water temperature rises to 60 to 100°C. Since the action and effect are exhibited only in the wet state, the possible time of the sand in forming 1 is long (
, the frequency of C (Yo, the linear heating process rapidly transforms the film, so it provides an effective molding method for small-sized Koshi-Nanzeng works). 0.05 to 1. Q j
The iqo and os * firefly % are full and the hardening does not proceed even if the sword mouth is heated. Etsu λ
-The saponification reaction has not started in the first place, the time to use the mouth becomes shorter, and there is excess water in the sand! This is because the steepness is slow.
粘結刑ワニスの姫〃0荒τ0.5〜5屯肯%とじたが5
05%未満では)JO*硬化で凌ンっても、砂型の光間
安定が不良と7jす、5%f建λfこ場合は駒夕の強度
が人さくlり丁さ、鋳物が健11・1り過程でキレツτ
発by、丁々とか、熱分井fカスが多くなV鈎吻vCカ
ス欠陥τ96生さぜノ、1jって幻よしくlい。Princess of sticky varnish〃0 rough τ 0.5~5 ton approval% bound 5
If it is less than 0.05%), even if it is overcome by JO* hardening, the light stability of the sand mold will be poor.・It breaks during the first step.
The V hook proboscis vC scum defect τ96 raw with a lot of hot scum and 1j is fantastic.
仄に夾施例λ″示し本丸す」の効果て具体的VC説明丁
/)0
実施例1
ンラクリー址欽100都(厘y+)にt占、を5角りと
して自鉋!注7エノール変性フランイリ]l]t:fワ
ニス2都(重加→及び硬化剤としてしりJつ散10%(
7ftjtt )水f8i1+= 3 fJ (AE、
加: )やr力1)λて召f冒ijし。Concrete VC explanation of the effect of the example λ"shows the main circle" Example 1 100 square meters (Y+) of Nrakuryu, t fortune, and a pentagonal self plane! Note 7 Enol-modified furanyl] l]t: f varnish 2 (heavy loading → and 10% Shiri Jtsusan as a hardening agent)
7ftjtt) Water f8i1+=3 fJ (AE,
+: ) and r force 1) λ and summon fij.
Cり配曾物τφ5υX 50 hの圧N4′i試験片イ
ー11モ製丁ゐための木型(第1図) f(九41毛し
たり1−)本型の葦\4v間′亀圧6,0OOV、H・
」波欽16M1lzノ篩周波寛刀ケ印)fil L 7
j o t= )iJ IJX ’+ii、カリ1−4
t )III h4r間は5.5.7及び10分とし、
管(槍間II++cM秋ハ雀取出し、試級片りThH就
が罠睨゛fで旬ムIIしたのら圧動強さt側戻した0結
釆に第2図に示すとおりであった0実施例1で使用した
配合砂に罠席15〜20℃VCおいて12時間1で全く
俊化は児らγしなかった。C sample τφ5υ 6,0OOV, H・
"Hakin 16M1lz no sieve frequency wave Kanto ke seal) fil L 7
j o t= ) iJ IJX '+ii, Cali 1-4
t) III h4r between 5, 5, 7 and 10 minutes,
When the tube (Yarima II ++ cM autumn was taken out and the trial grade student ThH was caught in the trap glare f), the pressure force was returned to the t side and the result was 0 as shown in Figure 2. The mixed sand used in Example 1 did not undergo any agitation after 12 hours at VC at 15 to 20°C.
次に不発ψ」による方法で作製した中子τ使用した鋳型
に琢状黒餉麩の浴湯勿釣造したO同じ鋳型忙パラトルエ
ンスルホ/敵(70厭封%水浴漱)忙映化剤とし、フラ
ン自峡住粘紹沖」τ用いて作製した鋳型に球状黒鉛駒鉄
τ餉込んた場合VCは中子面の一部に片状黒鉛か児ら牡
たか、しゆう酸を使用した場合の崎吻でに同じ部位の組
織は丁べての黒鉛形状が球状であった0介iLW又はス
ルホン酸で硬化パリに便ハルだ市愼自峻性餉型V(鋼あ
るいは球状黒鉛ρ1麩τ釣込んだと*&:+mMiJ者
ではキレンか住者では黒鉛の形状が片状に戻るという問
題かあった0その原因は硬化剤中の健黄分が浴湯中に後
人して鋼忙脆化丁々ためであり、球状黒鉛防獣では浸硫
により、球状黒鉛の片状化およびクラックQ)発生γ防
止できた0
”また、本発明の方法tti抜型tでの1j−f間が短
〃為(,1箇の木型−〇多数の申子τ迫型丁ゐ場合に有
効なルiJj朱忙与える0
4、凶IJIIの1副卑な政ゆ」
第1 図(aJ (blはヤ1しぞオL賦除片忙1′ト
羨1゛4)ための俟型の平田1図及び11411山」凶
であゐ0第2図に実施セリ1の跣侶゛イシーC成形し/
こ〜(躾)1に6(1周技工不ルキーτ印力uしたI墳
1山と圧柑乃虫嘔の1力係〒ボした図であるO
代理人升坤士 若 林 uis 岐Next, in a mold using the core τ prepared by the method of "unexploded ψ", a hot bath of porcelain black porridge was made using the same mold as the same mold (70% water bathing solution). When spheroidal graphite komagane τ was added to a mold made using ``Fran Jikyo Sumitomo Oki'' τ, VC used flaky graphite or oxalic acid on a part of the core surface. In the case where the graphite shape in the same region was spherical, it was hardened with sulfonic acid or hardened with sulfonic acid. When τ was caught *&:+mMiJ There was a problem that the shape of the graphite returned to a flaky shape in the case of people who lived in the bath. In the case of spheroidal graphite beast control, sulfurization was able to prevent flaking and cracking of spheroidal graphite and the occurrence of cracks. Short reason (, 1 wooden pattern - 〇 effective RuiJj Zhu Jing in the case of many denominations) BL is the owl-shaped Hirata 1 figure and 11411 mountain for Ya 1 Is O L allocation piece busy 1' to envy 1゛ 4) It's terrible, A0 Figure 2 carries out Seri 1's knee ゛C Molding/
This (discipline) 1 to 6 (one round of technicians, 1 to 6) is a diagram of the I tomb 1 mountain and the 1 force of Okan no Mushio.
Claims (1)
食性フェノール樹脂ケ王取分と丁ゐワニス勿砂粒子に対
して0.5〜5重1凱及びき酸、しゆう酸、酢酸及びプ
ロピオン酸から選ばnゐ少な(とも1柚以上の硬化剤を
砂粒子に対し40.05〜1.0重重%カロλ−て混練
し、こnτ模型に充填したのち、10〜1001111
zの高周波電力によって加熱して硬化させることγ特徴
と丁ゐ鋳型の製造方法。 2、硬化剤がしゆう酸である特許請求の範囲第1項記載
の鋳型の製造方法。[Scope of Claims] 1. Sand particles VC7 orchid resin, phenol resin or furan-edible phenolic resin, 0.5 to 5 weights and 1 kaol, and phosphoric acid, oxalic acid to the sand particles. , acetic acid and propionic acid, a hardening agent of 40.05 to 1.0 wt.
Characteristics of heating and curing with high frequency power and method of manufacturing molds. 2. The method for manufacturing a mold according to claim 1, wherein the curing agent is oxalic acid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17954283A JPS6072635A (en) | 1983-09-28 | 1983-09-28 | Production of casting mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17954283A JPS6072635A (en) | 1983-09-28 | 1983-09-28 | Production of casting mold |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6072635A true JPS6072635A (en) | 1985-04-24 |
JPH0438496B2 JPH0438496B2 (en) | 1992-06-24 |
Family
ID=16067567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17954283A Granted JPS6072635A (en) | 1983-09-28 | 1983-09-28 | Production of casting mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6072635A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109385038A (en) * | 2017-08-11 | 2019-02-26 | 宁夏共享化工有限公司 | Self-hardening organic synthetic resin mixture and application thereof for increasing material manufacturing |
-
1983
- 1983-09-28 JP JP17954283A patent/JPS6072635A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0438496B2 (en) | 1992-06-24 |
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