CN113593902A - 适用于多层多匝马鞍型超导线圈的制造工艺及成型模具 - Google Patents

适用于多层多匝马鞍型超导线圈的制造工艺及成型模具 Download PDF

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CN113593902A
CN113593902A CN202110774773.5A CN202110774773A CN113593902A CN 113593902 A CN113593902 A CN 113593902A CN 202110774773 A CN202110774773 A CN 202110774773A CN 113593902 A CN113593902 A CN 113593902A
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CN113593902B (zh
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罗歆
张率斌
彭黎明
李雪芹
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HEFEI JUNENG ELECTRO PHYSICS HIGH-TECH DEVELOPMENT CO LTD
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/048—Superconductive coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/28—Closure devices therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H01F2041/0711—Winding saddle or deflection coils

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Abstract

本发明公开了一种适用于多层多匝马鞍型超导线圈的制造工艺及成型模具，制造工艺包括将绝缘材料缠绕于超导线四周，形成带有匝间绝缘的超导线，之后将带有匝间绝缘的超导线绕制在呈马鞍型的成型模具中，形成线圈，再利用利用真空压力浸渍方式，向成型模具通入树脂，使树脂浸渍入线圈中并完成固化等步骤；成型模具包括用于绕制超导线及绝缘材料的空腔。本发明能够满足多层多匝马鞍型超导线圈制造要求，成型模具结构简单、拆装方便等优势。

Description

适用于多层多匝马鞍型超导线圈的制造工艺及成型模具
技术领域
本发明涉及线圈模具制造技术领域，具体涉及一种适用于多层多匝马鞍型超导线圈的制造工艺及成型模具。
背景技术
随着科学研究的进展，对线圈的需求越来越高，各种形状的线圈屡屡出现，其中马鞍形线圈为常见的一种结构。超导线圈的特性在于其优越的物理性能，它在电工、交通、医疗、军工和科学实验领域有重要的现实作用和巨大的开发前景。如图1所示，当马鞍形线圈应用在超导领域，作为马鞍型超导线圈时，具有如下的特点：1、形状特殊，马鞍形外形；2、多层多匝，超导线绕制，导线截面小；3、线圈自身截面小，外形长，不易绕制成型且易变形；4、绝缘质量要求高。由于上述特点的限制，导致现有技术中马鞍形线圈的制造工艺及成型模具无法满足于马鞍型超导线圈的制造。
发明内容
本发明的目的在于克服现有技术的不足，一方面提供一种能够满足多层多匝马鞍型超导线圈制造要求的制造工艺。
一种适用于多层多匝马鞍型超导线圈的制造工艺，包括以下步骤：
（1）、将绝缘材料缠绕于超导线四周，形成带有匝间绝缘的超导线，之后将带有匝间绝缘的超导线绕制在呈马鞍型的成型模具中，形成线圈；
（2）、向成型模具中通入树脂，利用真空压力浸渍方式，将树脂浸渍入线圈中并完成固化，使线圈固化成一体；
（3）、调整成型模具尺寸，将绝缘材料缠绕于固化成一体的线圈四周，再次进行真空压力浸渍树脂，完成第二次固化，并实现线圈的对地绝缘制作。
一种适用于多层多匝马鞍型超导线圈制造的成型模具，包括底模，底模沿外周设有内模板及外模板，内模板及外模板之间构成用于绕制超导线及绝缘材料的空腔，空腔上方盖设有上盖板，空腔与上盖板之间形成浸渍密闭空间，上盖板上设有与浸渍密闭空间相通的注胶孔、出胶孔及真空抽气口。
本发明能够实现多层多匝马鞍型超导线圈的绕制及固化两次成型，减少拆装次数，降低了线圈绝缘损伤的可能性，另外可防止线圈在固化前的变形，保证了产品尺寸及质量。
成型模具所采用的分体式结构设计，使整个模具方便于拆装，可以多次实现组合式使用。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明背景技术中马鞍型超导线圈的结构示意图；
图2为本发明的结构示意图（未安装上盖板时）；
图3为本发明的结构示意图（安装上盖板时）。
具体实施方式
下面结合附图对本发明的优选实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
结合图2，本发明提供的一种适用于多层多匝马鞍型超导线圈的制造工艺，包括以下步骤：
（1）、将绝缘材料缠绕于超导线四周，形成带有匝间绝缘的超导线，之后将带有匝间绝缘的超导线绕制在呈马鞍型的成型模具1中，形成线圈；
（2）、向成型模具1中通入树脂，利用真空压力浸渍方式，将树脂浸渍入线圈中并完成固化，提高了线圈的匝间绝缘强度，使线圈固化成一体；
（3）、调整成型模具尺寸，将绝缘材料缠绕于固化成一体的线圈四周，再次进行真空压力浸渍树脂，完成第二次固化，并实现线圈的对地绝缘制作。
由于多层多匝马鞍型超导线圈匝数较多，超导线截面小，为了提高导线尺寸一致性及绝缘材料的均匀度，减小线圈绕制叠加误差，所以绝缘材料直接缠绕（编织）于超导线四周作为超导线的匝间绝缘。
线圈绕制成型后，浸渍树脂并固化，该过程采用真空压力浸渍技术，一方面，降低气泡、干区等浇注缺陷的存在，提高绝缘综合性能；另一方面，线圈经过树脂的浸渍并固化后，匝间绝缘强度提高，不同层数不同匝数的导线粘接于一体，实现线圈的整体脱模，保证了线圈的外形尺寸。
但上述的第一次固化仅仅做了匝间绝缘，对地绝缘是没有的，第二次固化，不仅完成对地绝缘的制作，而且一方面提高绝缘强度，另一方面使线圈更好的固化成为一个整体，增加机械强度。
上述两次固化，即可实现多层多匝马鞍型超导线圈（特点：截面小，细长件，易变形）的制作。
若绕线完成后不进行固化，直接脱模，线圈变形会很严重，直接就散开了，做第一次固化就是为了使所有导线粘接于一体，实现脱模，另外匝间绝缘浸渍了树脂，绝缘强度也会提高。
第一次固化完成后，缠包绝缘材料并进行第二次固化，一方面给线圈制作对地绝缘，提高绝缘强度，另外也提高了线圈的机械强度，防止散开（相当于线圈有了一层坚硬的外壳）。
参见图2，上述成型模具1包括基座11，基座11上设置呈马鞍型的底模12，考虑了马鞍形线圈的脱模需求，底模12需设置一定的脱模斜度，底模12沿外周设有内模板13及外模板14，内模板13及外模板14之间构成用于绕制超导线及绝缘材料的空腔15，空腔15顶面设有多组压线工装16，用于压住超导线辅助成型，控制尺寸，参见图3，空腔15上方盖设有上盖板17，空腔15与上盖板17之间形成浸渍密闭空间，外模板14最低点处设有与浸渍密闭空间相通的注胶孔18，上盖板17上设有与浸渍密闭空间相通出胶孔19及真空抽气口20。
由于超导线截面小且弹性大，所以采取无张力方式在空腔15中进行绕制，内模板13及外模板14可根据装配及拆模需求分瓣，每个构件与底模12设有定位销孔，空腔15尺寸与线圈一致，整体加工完成，线圈绕制完成后，按要求装配上盖板17，构成浸渍密闭空间，满足浸渍要求，环氧树脂利用注胶孔18进入空腔15，位置在线圈最低点，由下至上，使整个注胶过程中液面缓慢抬升，真空抽气口20用于在注胶过程中抽气，进行树脂浸渍工作，在第一次浸渍时无需对线圈进行脱模及二次装模，不伤害导线及绝缘。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (4)

1.一种适用于多层多匝马鞍型超导线圈的制造工艺，其特征在于：
包括以下步骤：
（1）、将绝缘材料缠绕于超导线四周，形成带有匝间绝缘的超导线，之后将带有匝间绝缘的超导线绕制在呈马鞍型的成型模具中，形成线圈；
（2）、向成型模具中通入树脂，利用真空压力浸渍方式，将树脂浸渍入线圈中并完成固化，使线圈固化成一体；
（3）、调整成型模具尺寸，将绝缘材料缠绕于固化成一体的线圈四周，再次进行真空压力浸渍树脂，完成第二次固化，并实现线圈的对地绝缘制作。
2.一种适用于权利要求1所述多层多匝马鞍型超导线圈的制造工艺的成型模具，其特征在于：包括底模，底模沿外周设有内模板及外模板，内模板及外模板之间构成用于绕制超导线及绝缘材料的空腔，空腔上方盖设有上盖板，空腔与上盖板之间形成浸渍密闭空间，外模板最低点处设有与浸渍密闭空间相通的注胶孔，上盖板上设有与浸渍密闭空间相通出胶孔及真空抽气口。
3.根据权利要求2所述的一种适用于多层多匝马鞍型超导线圈的制造工艺的成型模具，其特征在于：所述底模上设有脱模斜边。
4.根据权利要求2或3所述的一种适用于多层多匝马鞍型超导线圈的制造工艺的成型模具，其特征在于：所述空腔顶面设有多组压线工装。
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CN109841370A (zh) * 2019-04-09 2019-06-04 苏州八匹马超导科技有限公司 一种传导冷却磁体结构及其制造方法

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