已生成配置文件:./data/domain/xiangyang.jixi.ww38.viennacitytours.com.txt
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    对于强(qiáng)度、塑(sù)性和韧性要求更高的(de)机器零件,需要采用铸(zhù)钢(gāng)件,铸钢件(jiàn)的产量(liàng)仅次(cì)于(yú)铸铁,约占铸件(jiàn)总产量的15%。  一、按照化(huà)学成分铸钢可分为碳素铸钢和合金铸钢两大类。其中以碳(tàn)素铸(zhù)钢(gāng)应用最广,占(zhàn)铸钢总产量的(de)80%以上。   1、碳素铸钢   一般的(de),低碳钢(gāng)ZG15的熔点较高、铸造(zào)性能差(chà),仅用于制造电机零件或渗(shèn)碳零件;中碳钢ZG25~ZG45,具有(yǒu)高于各类铸铁的综(zōng)合性能,即强度高、有优良(liáng)的塑性和韧性,因此适于(yú)制(zhì)造形状复杂、强(qiáng)度和韧(rèn)性要求高(gāo)的零件,如火车车轮、锻锤机架和砧座、轧(zhá)辊(gǔn)和(hé)高压阀门等(děng),是碳素铸钢中应用(yòng)最多(duō)的一(yī)类;高碳钢ZG55的熔点低,其铸(zhù)造性(xìng)能(néng)较中(zhōng)碳钢的(de)好(hǎo),但其(qí)塑性和韧性(xìng)较差,仅用于制(zhì)造少数的耐磨件(jiàn)。   2、合金铸钢   根据(jù)合金元素总量的多(duō)少,合金铸钢可分为两低合(hé)金钢和高(gāo)合金钢大类。   (1)低合(hé)金铸钢(gāng),我国主要(yào)应用(yòng)锰(měng)系、锰硅系及铬系等(děng)。如ZG40Mn、ZG30MnSi1、ZG30Cr1MnSi1等。用来制造齿轮、水(shuǐ)压机工作缸和水轮机转子等(děng)零件,而ZG40Cr1常用来(lái)制造高(gāo)强度齿轮和高强度轴等重要受力零(líng)件。   (2)高合金铸钢,具有耐(nài)磨、耐热或耐(nài)腐蚀等特殊性(xìng)能。如高(gāo)锰钢(gāng)ZGMn13,是一种(zhǒng)抗磨钢,主要用于制造(zào)在(zài)干磨(mó)擦工作条件(jiàn)下(xià)使用的零件,如挖掘机的抓(zhuā)斗前壁和抓斗齿、拖拉机和坦克的履带等;铬镍(niè)不锈钢ZG1Cr18Ni9和铬不(bú)锈钢ZG1Cr13和ZGCr28等,对硝酸的耐腐(fǔ)蚀性很高,主要(yào)用于制造化工、石油、化(huà)纤(xiān)和食品等设备(bèi)上的零件。   二、铸(zhù)钢(gāng)的铸造工艺特(tè)点   铸钢(gāng)的机械性能(néng)比(bǐ)铸铁高,但(dàn)其铸造性能却比(bǐ)铸铁差。因为铸钢(gāng)的熔(róng)点较高,钢液易氧化、钢(gāng)水(shuǐ)的流动性差、收(shōu)缩大,其体收缩率为(wéi)10%~14%,线收缩为1.8%~2.5%.为防(fáng)止铸钢件(jiàn)产生浇(jiāo)不足、冷隔、缩孔和缩(suō)松(sōng)、裂(liè)纹及粘砂等缺陷,必须(xū)采取比铸铁(tiě)复杂的工艺措施:   1、由于钢液的流动性差,为防止铸钢件产生冷隔(gé)和(hé)浇(jiāo)不足,铸(zhù)钢件的(de)壁厚不能小于8mm;浇注(zhù)系统的结构力求简单、且截面尺寸(cùn)比(bǐ)铸铁的大;采(cǎi)用干铸型(xíng)或热铸(zhù)型;适当提(tí)高浇注温(wēn)度,一般为1520~1600℃,因为(wéi)浇注(zhù)温度高,钢水的过热度(dù)大、保持液态的时间(jiān)长(zhǎng),流(liú)动性可(kě)得到改善。但是浇温过高,会引起晶粒粗大(dà)、热裂、气孔和粘砂等(děng)缺(quē)陷。因此一(yī)般小型(xíng)、薄壁及形状复杂的铸件,其浇注温度(dù)约为钢的熔(róng)点温度(dù)+150℃;大型、厚壁(bì)铸件的(de)浇(jiāo)注温度比其(qí)熔点高出100℃左右。   2、由于铸钢的收(shōu)缩大大超(chāo)过铸铁,为(wéi)防止铸(zhù)件出现缩孔、缩松缺陷,在铸造工(gōng)艺(yì)上大都采用(yòng)冒口和、冷(lěng)铁(tiě)和补贴(tiē)等措施(shī),以实(shí)现顺序(xù)凝固。   此外,为(wéi)防止铸钢件产生缩孔、缩松、气(qì)孔和(hé)裂纹(wén)缺陷(xiàn),应使其壁(bì)厚(hòu)均匀、避免尖角和直角结构、在铸(zhù)型用型砂中加锯末、在型芯中加(jiā)焦炭、以及采用(yòng)空心型芯和油砂芯等来改善(shàn)砂型或(huò)型芯的退让性和透气性。   铸钢的熔点高,相应的其浇注温度也高。高温下钢水(shuǐ)与铸型(xíng)材(cái)料相互作用,极(jí)易产生粘砂缺(quē)陷。因此,应(yīng)采用耐火(huǒ)度(dù)较高的人造(zào)石英砂做铸型,并在铸型表面刷由石英粉或锆砂(shā)粉制得的涂料。为减少气体来(lái)源、提高钢水流动性及铸型强度,大多(duō)铸钢(gāng)件(jiàn)用(yòng)干(gàn)型或快干型来铸(zhù)造,如采用CO2硬化的(de)水玻璃砂型。   三、铸钢件(jiàn)的热处理(lǐ)   铸钢(gāng)件均应在热处理后使用。因为铸态(tài)下的铸钢件内部存在气孔(kǒng)、裂纹(wén)、缩孔和缩松、晶粒(lì)粗(cū)大、组织不均及残余内应力等(děng)铸造缺(quē)陷,使铸钢件的强度、尤其是塑性和韧(rèn)性大大(dà)降低(dī)。   为细(xì)化晶粒、均匀组织及消(xiāo)除(chú)内应(yīng)力,铸钢件必须进行正火或退火处理。正火处理后的钢,其(qí)机械性能较退(tuì)火后(hòu)的高,成本也较低,所以应用较多。但(dàn)由于(yú)正火处理会引起较退火大(dà)的内应力(lì),只适用于含碳量(liàng)小于0.35%的铸(zhù)钢(gāng)件。因为低碳(tàn)铸钢件的塑性(xìng)好,冷却时不易开裂。为减小内应力,铸钢件在正火后,还应进行(háng)高温(wēn)回火。对于(yú)含碳量≥0.35%的、结构(gòu)复杂及易产生裂(liè)纹(wén)的铸(zhù)钢件,只能(néng)进(jìn)行退火处理(lǐ)。铸钢件不宜淬火,否则极易开裂。   四、铸(zhù)钢的熔炼   铸钢的熔(róng)炼一(yī)般采用平炉,电弧(hú)炉和感应炉等。平炉的特点是容量大(dà)、可利用废钢作原料(liào)、能准确控制钢的(de)成分并能熔炼优质钢及低合金钢,多用于熔炼(liàn)质量要求高的、大型铸钢件用的钢液。   三相(xiàng)电弧炉的开炉(lú)和停炉操(cāo)作(zuò)方便,能保证钢液的成分和质量、对炉料的要(yào)求不甚严格、容易升温,故能炼优质钢、高级合金钢和特殊钢等(děng),是生产成型铸钢件的常用设备。   此外,采用工频或中频感应炉,能熔炼各种高(gāo)级(jí)合金钢和碳含量极(jí)低的(de)钢。感(gǎn)应炉的熔炼速度快、合金元素烧(shāo)损小、能源消耗少、且钢液质量高,即(jí)杂质含量少、夹杂(zá)少。 

    2025-01 01

    全体荣誉
            热烈祝贺,在2024年九亿(yì)集团年度总结中,公司成立以来,重视企业文化。以“真诚”为核心理念,以“客户信得过、自身干得实、员工留得住”的经营理念,始终坚持以“重质量为本、应民生所需、解顾客之忧”的服务宗旨,探索实践“走在前列、屡创新篇,干在实处、永无止境”的企业战略。和顺祥(xiáng)机械(xiè)被评为“2024年年度优(yōu)秀供应商”该(gāi)荣誉的获得离不开董事(shì)长侯战强,总经(jīng)理张桥梁(liáng)的英明领导,离不开(kāi)全体(tǐ)员(yuán)工的共同努力,更(gèng)离不开(kāi)全(quán)体(tǐ)员工家属的大力支持,希望在新的一年里(lǐ)全(quán)体顺(shùn)祥人共同努力,再创辉煌!

    2024-12 30

    铸件缺陷的修补方法
    铸件在生产(chǎn)过程中由(yóu)于操(cāo)作工艺或者经验(yàn)的问题(tí),都会导致铸件(jiàn)出现缺陷,这时候(hòu)为了使铸件能够达到使用标(biāo)准(zhǔn),减少损失(shī)浪费,往往会(huì)对缺(quē)陷进行修复(fù),那(nà)修复方法都有哪(nǎ)些呢?       一、铸工胶水:简单,粗(cū)放的铸件,一般修补处不需要后续加工,且(qiě)没有特(tè)殊的强度硬度(dù)要求。这类(lèi)铸件附加值比(bǐ)较低。      二、焊补:90%以上的铸造厂家都选择焊补来解(jiě)决生产中遇(yù)到(dào)的铸造缺陷(xiàn)。焊补(bǔ)修复因采用(yòng)了金属填充料(liào),焊补(bǔ)处(chù)性能基本可以(yǐ)达到母材的标准,且(qiě)操(cāo)作简单,焊(hàn)补效率高,受到许多(duō)厂(chǎng)家的认可(kě)和(hé)信赖。目前市(shì)场(chǎng)上,焊机种(zhǒng)类比较多(duō),应用(yòng)在缺陷修复上(shàng),大体有以下(xià)几(jǐ)种:      电焊(hàn)机:铸铁、铸钢件焊补(bǔ)多采(cǎi)用的传统(tǒng)方式。      优点(diǎn):修复大缺陷,效率高。      缺点(diǎn):焊(hàn)后焊点上硬度过高,内部有应(yīng)力,容(róng)易产(chǎn)生裂纹,一般还(hái)需要退火热处理才可以满足加工要求。且因焊接条件限制,内部容易产生(shēng)气孔、夹渣等二次缺陷。  氩弧焊:精密铸件(jiàn),铝合金压铸件多采(cǎi)用氩弧焊机(jī)焊补。部分(fèn)模具制造和修(xiū)复(fù)厂家,也(yě)采用该焊机修(xiū)复模具(jù)缺陷。      1、优点:焊补(bǔ)效率(lǜ)高,精度较电焊机高。焊丝(sī)种类较多,不锈(xiù)钢、铝合金产品上应用最广。可用于焊接,强度教高。      2、缺(quē)点:用于缺陷(xiàn)修复,小缺陷修复时,因冲击(jī)过大(dà),熔池边线有(yǒu)痕迹。焊(hàn)补钢件有硬(yìng)点。由于热(rè)影响(xiǎng),焊补(bǔ)有色铸件或(huò)薄壁件时,易产(chǎn)生热变(biàn)形(xíng)。操作技术要(yào)求较高。      三、冷焊机(jī):是21世纪初(chū)新诞生的修(xiū)复(fù)技术(shù),因焊补过程中工件产生(shēng)热量极小,被成(chéng)为冷焊机。经过几年的发展,焊机应用方向和技术都得到了很大(dà)的发展,已经(jīng)在修复市(shì)场占有很大的份额。按照修补产品分类有:贴片机和(hé)电火花(huā)堆焊修复(fù)机。     贴(tiē)片机:采(cǎi)用瞬间高(gāo)频放电原理将焊片粘贴到工件表面,每次粘(zhān)贴厚度最大等同与焊片(piàn)厚度(dù),焊(hàn)接质量取决(jué)于放电(diàn)是否均(jun1)匀。适合(hé)于工件磨损,加工超(chāo)差修复,在模具市场具有一定影响力。该机器也可以将焊粉,填充到缺陷处(chù),经放电后修(xiū)复。修复后的工件色(sè)差小。缺点是修补(bǔ)的速(sù)度较慢。冷焊机,共同的缺点是(shì),焊补效(xiào)率不(bú)如(rú)电焊(hàn)机和氩弧焊(hàn)机高,但在修复毫米级缺陷和加工面缺陷时,其突出的优势使人们(men)更青睐于选(xuǎn)择冷焊(hàn)。

    2024-12 26

    公司成立以来,重视企业文化。以“真诚”为核心理念,以“客户信得过、自身干得实、员工留得住”的经营理念,始终坚持以“重质量为本、应民生所需、解顾客之忧”的服务宗旨,探索实践“走在前列、屡创新篇,干在实处、永无止境”的企业战略。和顺祥90后00后人才陪(péi)跑计(jì)划
    公司成立以来,重视企业文化。以“真诚”为核心理念,以“客户信得过、自身干得实、员工留得住”的经营理念,始终坚持以“重质量为本、应民生所需、解顾客之忧”的服务宗旨,探索实践“走在前列、屡创新篇,干在实处、永无止境”的企业战略。和顺祥公(gōng)司推出(chū)针对90后及00后的人才培(péi)养计划,该计划每年投入3万(wàn)至(zhì)20万元(yuán)资金,旨在树立员工(gōng)职业理想,提升个人能力,培养(yǎng)职业爱好。培训内容涵盖专业知识(shí)与岗位技(jì)能,确保员工全(quán)面发展。此外,每(měi)半个月举行一次例会,以加强沟通与协(xié)作;今天举行(háng)挂牌仪式(shì),由张总担任组(zǔ)长亲自挂牌(pái),办公室主(zhǔ)任郝毅康负责具体(tǐ)事务。同时(shí),公司还(hái)将聘请行业(yè)专家进行指导培训,以提升培训(xùn)质量和效果(guǒ)。 一、培养目标 1. 培养具有扎实的机械制图基础、较强的(de)计(jì)算机辅助设计(CAD)和计算机辅助制造(zào)(CAM)能力的青(qīng)年人才;2. 培养具备良好的生(shēng)产工(gōng)艺(yì)和质量控制意识的青年人才(cái),确(què)保产品的质量和生产效(xiào)率;3. 培养具备独立进行各工(gōng)序设计、制造(zào)、维修和调整能力的(de)青年人才;4. 培养具备较高操作技能和(hé)安全意识的青年人才(cái),降低生产过程中的安全事故风(fēng)险及质量(liàng)风险(xiǎn)。 二、课程(chéng)设置 1. 机(jī)械(xiè)制图基础:包(bāo)括机(jī)械(xiè)制图(tú)基本概念、基本(běn)原理、图形(xíng)符号、投(tóu)影法等;2. CAD/CAM技术:AutoCAD、procast、SolidWorks等CAD/CAM软件的培训(xùn)和使用;3. 铸(zhù)造工(gōng)艺(yì)学:砂型铸造的原理、工艺流程、质量控(kòng)制方法(fǎ)等;              4. 模具设计与(yǔ)制造(zào):模(mó)具设计(jì)原理、结构分(fèn)析、材料选用、制造工艺等;5. 造型合(hé)箱(xiāng):型砂的性能及检测、造型方(fāng)法、合箱操作(zuò)等;6. 熔炼浇注:金(jīn)属材料的基(jī)础知识、冶炼方法、浇注过程及常见问题(tí)处理等;7. 其他相关环节:如热处理(lǐ)、表(biǎo)面处(chù)理、质量(liàng)检测(cè)等。8. 结合本(běn)人技能,岗位,爱好进(jìn)行专门(mén)培训(xùn)等。三、教学方法 1. 理论教学:采(cǎi)用(yòng)多媒体课件、实物演示、案例分析等(děng)多种方式进行讲(jiǎng)解,使学员能够全面理(lǐ)解知识点;2. 实践操(cāo)作:通过现场教学、模拟操作等方式,让学员亲自操作(zuò)设备,增强动手能力和实(shí)践经验;3. 项目实践:结合(hé)企业实(shí)际生产案例,让学员参与项(xiàng)目(mù)实施(shī),提高分(fèn)析(xī)和解决(jué)问题的(de)能力;4. 课程评价:采(cǎi)用课堂测验、作业提交(jiāo)、项目(mù)成果展(zhǎn)示等多(duō)种方式,对学员(yuán)的学习效果进行(háng)综(zōng)合评价。 四(sì)、培训周期 培训周期为6个(gè)月,分为两个阶(jiē)段(duàn)进(jìn)行。第一(yī)阶段(duàn)(第(dì)1-3个月)为基(jī)础课程学习和实践操作练习阶段;第二阶段(duàn)(第4-6个月)为专业课程学习和项目(mù)实践阶段。 五(wǔ)、后续发展与(yǔ)跟踪 1. 培(péi)训(xùn)结(jié)束后,为学员提供一定期限的(de)实践机会,以便于将所学知(zhī)识应用于实际工作中;2. 定期(qī)关注学员的工作表现和(hé)发(fā)展情况(kuàng),及时给(gěi)予指导(dǎo)和支持,帮助学员(yuán)解决实际问题;3. 建立完(wán)善的激励机制,对取得优异成(chéng)绩的学员给予表(biǎo)彰和(hé)奖励,激发他(tā)们的工(gōng)作热情和创新精神。  本青年人才陪跑(pǎo)计划旨在全面提高公司成立以来,重视企业文化。以“真诚”为核心理念,以“客户信得过、自身干得实、员工留得住”的经营理念,始终坚持以“重质量为本、应民生所需、解顾客之忧”的服务宗旨,探索实践“走在前列、屡创新篇,干在实处、永无止境”的企业战略。和顺祥青年(nián)人才的技能和素质,为企业的发展提供有(yǒu)力的人才保障。我(wǒ)们将不(bú)断优化(huà)课(kè)程设置和教学方式,确保培养出更多优秀(xiù)的铸造人才,作为(wéi)扩(kuò)大生产(chǎn)后车间中层管理及推进数字化改造(zào)干(gàn)部储备人才,推动公司成立以来,重视企业文化。以“真诚”为核心理念,以“客户信得过、自身干得实、员工留得住”的经营理念,始终坚持以“重质量为本、应民生所需、解顾客之忧”的服务宗旨,探索实践“走在前列、屡创新篇,干在实处、永无止境”的企业战略。和顺祥铸造产业(yè)的发展。 2024年12月25日公司成立以来,重视企业文化。以“真诚”为核心理念,以“客户信得过、自身干得实、员工留得住”的经营理念,始终坚持以“重质量为本、应民生所需、解顾客之忧”的服务宗旨,探索实践“走在前列、屡创新篇,干在实处、永无止境”的企业战略。和顺祥90后00后人才陪跑办公室

    2024-12 24

    消失模的砂眼及气孔的解决方法
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