ilmenite type electrode钛铁矿形焊条

immersion method液浸法超声波探伤

impact pressure碰撞压力

impact point碰撞点

impact test of HAZ热影响区冲击试验

implant test插销试验

improvement 提高

inclined position welding倾斜焊

inclined T joint斜T形接头

inclusion夹杂物

included angle(英国)/groove angle(美国)坡口角度

incompletely filled weld未焊满

incomplete penetration未钎透/未焊透

indentation压痕

indentation ratio压深率

indirect spot welding单面点焊

indirect arc间接电弧

induction brazing感应钎焊

inflammable limit of the gaseous混合气体可燃范围 

infra-red heater红外线加热器

infra-red brazing (soldering)红外线钎焊

inherent stress固有应力

inherent strain zone固有应变区

inherent strain method固有应变法

inert-gas backing惰性气体衬垫

initial diffusible hydrogen初始扩散氢

initial overhange调伸长度

initial parameters初始参数

initial stand-off/ spacing间距

injector torch射吸式焊炬 

injector喷射器

inner cone; flame cone焰芯

insert嵌条

inset T joint嵌入T形接头

installation fundamental circle安装基准圆

instantaneous concentration heat source瞬时集中热源

intercrystalline crack晶间裂纹

interfacial region钎缝界面区

integral整体

internal flame内焰

interface parameters界面参数

interfacial region钎缝界面区

interior angle welding line joint内侧角焊缝接头

interlayer夹层

intergranular fracture沿晶断口

intermittent welding断续焊

intermittent fillet weld断续角焊缝

internal explosion process内爆法

intensity of the electric field in the cathode region阴极区电场强度

intensity of the electric field in the anode region阳极区电场强度

intrusion侵入，干扰

inverter type resistance welding machine逆变式电阻焊机

iron soldering烙铁钎焊

iron oxide type electrode/ high iron oxide type electrode

氧化铁型焊条

investigation 调查

iron powder electrode铁粉焊条

J

jig welding 工模焊接

J-integration J积分

joggled lap joint平面搭接头

Joint Accessibility 接头（焊接）可达性

K

kerf切口

kerf angle切口角

kerf width切口宽度

Kinzel test肯泽尔弯曲试验

Kommerell bead bend test柯麦雷尔弯曲试验

L

lack of fusion/ incomplete fusion未熔合

lack of penetration 未焊透

lamellar segregation 层状偏析

lamellar tearing 层状撕裂

lath ferrite 条状铁素体

lath martensite 板条马氏体

lap joint 搭接接头

lap welding 搭接焊

lap width 搭接宽度

lapped T-joint 搭接T形接头

laser beam welding 雷射光焊接

laser brazing (soldering) 激光钎焊

laser cutting(LC); laser beam cutting 激光切割

LW—laster welding 激光焊

layer 焊层

leak test 密封性检验

leftward welding forehand welding 左焊法

Lehigh restraint cracking test 里海裂纹试验

leg 焊脚

length of the interfacial wave 界面波长

levelness 水平度

lick side seam joint 平面锁缝接头

light soldering (brazing) 光束钎焊

lime titania type electrode 钛钙型焊条

linear heat source 线热源

linear elastic fracture mechanics 线弹性断裂力学

liquation crack 液化裂纹

liquid crystal test 液晶检验

liquation of filler metal 钎料熔析

local stress relieving 局部消除应力

lock butt joint 锁底对接接头

lock corner joint 锁缝角接接头

local deformation 局部变形

local dry underwater welding 局部干式水下焊

local distortion 局部变形

local stress 局部应力

lone of cut/ cut line切割线

longitudinal crack 纵向裂纹 

loss coefficient损失系数

low pressure acetylene generator低压乙炔发生器

low temperature stress relieving温差拉伸消除应力

low temperature steel electrode/ steel electrode for low temperature低温钢焊条低温钢焊条

low alloy steel低合金钢

low hydrogen type electrode低氢型焊条