久久久二区精品动漫|AV网站在线播放|现在也可以直接观看成人黄色|亚洲三级片网站多少|日韩欧美人妻射婷婷|国产AV无码专区亚洲AV高潮|免费网站在线观看久|3D动漫精品啪啪一区二区免费|高清无码中文免费|亚洲美女激情在线

質(zhì)量證明的審查：鋼廠交貨一定根據(jù)用戶的要求按合同約定的規(guī)范交貨并提供原始質(zhì)量證明書。證明書中，必須具備以下內(nèi)容：1）規(guī)范要求；2）質(zhì)量記錄編號(hào)及證明證號(hào)；3）爐批號(hào)，技術(shù)等級(jí)；4）化學(xué)成分和力學(xué)性能；5）船級(jí)社認(rèn)可證明及驗(yàn)船師簽字。
Review of the quality certificate: the delivery of steel must be delivered in accordance with the requirements of the contract in accordance with the provisions of the contract and provide the original certificate of quality. The certificate, must have the following contents: 1) specification requirements; 2) quality record number and certificate number; 3) technical level; 4) batch number, chemical composition and mechanical properties; 5) approved classification certificate and surveyor signature.
2、實(shí)物審查：船用鋼材的交貨，實(shí)物物體上應(yīng)有生產(chǎn)廠標(biāo)志等。具體有：1）船級(jí)社認(rèn)可標(biāo)志；2）采用油漆框出或粘貼標(biāo)記，包括技術(shù)參數(shù)如：爐批號(hào)、規(guī)范標(biāo)準(zhǔn)等級(jí)、長(zhǎng)寬尺寸等；3）外觀光潔平順，無缺陷。

2, Physical Review: the delivery of marine steel, physical objects, such as the production plant logo. Specific: (1) classification society approval mark; 2) use paint frame out or paste mark, including technical parameters such as: furnace batch number, standard standard grade, length and width, etc.; 3) appearance smooth smooth, no defects.
船板基礎(chǔ)知識(shí) 鍋爐板 鋼板中的一個(gè)大類－－鍋爐板 主要用于制作鍋爐使用。 熱處理：熱軋，正火，控軋，退火，回火＋正火，調(diào)質(zhì)。 中國(guó)國(guó)標(biāo)的鍋爐板執(zhí)行標(biāo)準(zhǔn)為：GB713。 鍋爐板牌號(hào)： 20g,16Mng,SA285GrC,SB410,410B,KP42,12Cr1MoVg,15CrMog,15Mo3,16Mo3,P265GH,P355GH,19Mn6 14crmnmovbg 鍋爐板應(yīng)用范圍： 牌號(hào) δ6/MPA 應(yīng)用范圍 20G 250 《450 ℃ 中、低壓鍋爐 22G 270 《450 ℃ 中、低壓鍋爐 12MNG 300 《450 ℃ 中、低壓鍋爐 16MNG 350 -40-450℃ 中、低壓鍋爐 15MNMG 400 -40-500℃ 中壓鍋爐 14MNMOVG 500 -20-500℃ 高壓鍋爐 14mnmovbreg 500 《520 ℃ 高壓鍋爐 18mnmonbg 500 0-520℃ 高壓鍋爐 14crmnmovbg 650 400-560℃高壓容器與鍋爐 容器板 是鋼板中的一大類－－容器板 具有特殊的成分與性能 主要用于做壓力容器使用，針對(duì)用途，溫度，耐腐的不同，所應(yīng)該選用的容器板材質(zhì)，也不盡相同。
A large class of basic knowledge in boiler plate of ship plate steel - boiler plate is mainly used for making use of boiler. Heat treatment: hot rolling, rolling, annealing, quenching, tempering and normalizing, quenching and tempering. China national standards for the implementation of the boiler plate: GB713. Boiler plate grade: 20g, 16Mng, SA285GrC, SB410410B, KP42,12Cr1MoVg, 15CrMog, 15Mo3,16Mo3, P265GH, P355GH, application of 19Mn6 14crmnmovbg boiler plate: application of 6/MPA 20G 250 grade 8 "450 DEG C and low pressure boiler 22G 270" 450 C, 450 C 300 12MNG low pressure boiler "medium and low pressure boiler 16MNG 350 -40-450 at medium and low pressure boiler 15MNMG 400 -40-500 C -20-500 C 14MNMOVG 500 medium pressure boiler high pressure boiler 14mnmovbreg 500" 520 DEG C high pressure boiler 18mnmonbg 500 0-520 C 14crmnmovbg C 650 400-560 high pressure boiler pressure vessel and boiler vessel steel plate is one kind of - container plate has special properties and composition are mainly used as a pressure vessel. For the purpose, temperature, corrosion resistance, container plate material should be used, are not the same.