大型锻件制造缺陷与对策-畅读网

　　　　

大型锻件制造缺陷与对策

作者：王宝忠

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内容简介:

本书详细介绍了大型锻件在制造过程中出现的各种形式的缺陷与处理对策，共100例。书中运用大量详实的试验数据客观真实地展示了各类大型锻件制造中的缺陷形式，通过宏观与微观的分析方法揭示了缺陷产生的根本原因，并以制造出形神兼备（铸件的形状、锻件的质量）的大型锻件为目标，以改变制造方式为契入点，给出了预防和根治大型锻件缺陷的方法与对策。本书内容对改进和提高大型锻件质量具有一定的参考价值，对未来新技术研发具有指导意义。

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SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.002324s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.002473s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 5 LIMIT 1 [ RunTime:0.005851s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 45 LIMIT 1 [ RunTime:0.001583s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.001470s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.002190s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1750486742 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.617786s ]

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