產(chǎn)品介紹《k9球墨鑄鐵管及管件技術(shù)手冊(cè)》介紹了k9球墨鑄鐵管的制造技術(shù)、接口形式、質(zhì)量標(biāo)準(zhǔn)、安裝技術(shù)以及特殊用途球墨鑄鐵管等內(nèi)容,列舉了各種接口球墨鑄鐵直管、管件、附件的技術(shù)參數(shù)以便于讀者選用,精選了附錄以便于讀者了解球墨鑄鐵管的設(shè)計(jì)、施工等內(nèi)容?!肚蚰T鐵管及管件技術(shù)手冊(cè)》可供制造和應(yīng)用的球墨鑄鐵管領(lǐng)域內(nèi)的科研人員、設(shè)計(jì)人員、生產(chǎn)人員、施工人員、管理人員閱讀產(chǎn)品屬性"K9 ductile iron pipe and pipe fittings technical manual" introduces the technical, manufacturing K9 nodular cast iron pipe interface form, quality standards, installation technology and special use of ductile cast iron pipe and other content, technical parameters of various interfaces of nodular cast iron pipe, pipe fittings, accessories list for readers to use, design, construction choosing the content of appendix for readers to understand the nodular cast iron pipe. "Ductile cast iron pipe and pipe fittings technical manual" nodular cast iron can be used for manufacturing and application of the tube within the field of scientific research personnel, designers, production personnel, construction personnel, management personnel to read其他說(shuō)明k9球墨鑄鐵管技術(shù)要求3.1力學(xué)性能(1)抗拉強(qiáng)度表3.1-1鑄件類型 最小抗拉強(qiáng)度 σb,MPa 最小伸長(zhǎng)率 δ5,% DN40~2600 DN40~1000 DN1100~2600 k9球墨鑄鐵管 420 10 7 管件、非k9球墨鑄鐵管 420 5 5 注1:根據(jù)供需雙方的協(xié)議,可檢驗(yàn)屈服強(qiáng)度(σp0.2)的值。其中當(dāng)DN40~1000,δ5≥12%時(shí),允許σp0.2≥270MPa;或當(dāng)DN>DN1000,δ5≥10%時(shí),允許σp0.2≥270MPa,其他情況下σp0.2≥300MPa。注2:DN40~1000的離心球墨鑄鐵管壁厚等級(jí)超過(guò)K12時(shí),最小伸長(zhǎng)率為7%。
(2)布氏硬度直管、管件和附件的硬度是指用標(biāo)準(zhǔn)的工具可以對(duì)其進(jìn)行切割、鉆孔、打眼/或機(jī)械加工的硬度。如有爭(zhēng)議,可進(jìn)行硬度試驗(yàn)。k9球墨鑄鐵管的布氏硬度值不得超過(guò)230HB,非離心球墨鑄鐵管、管件和附件的布氏硬度值不得超過(guò)250HB。焊接部件的焊接受熱區(qū)的布氏硬度值可高些。交易說(shuō)明電議 13361471188
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