སྒྱུ་རྩལ
མཛེས་སྡུག་དང་བདེ་ཐང
བཟོ་རིག
རིག་གནས་དང་ལོ་རྒྱུས
དགའ་སྟོན
ཁོར་ཡུག
ཟས་དང་བཏུང་རྫས
ཕྱིར་འཕྲུལ་རིག
ཚན་རིག
རྩེད་འགྲན
རིག་རྩལ
གྱོན་རུང

མེ་ཁང

བིལུ་པིརིན་ཊི ༡༦ ཡོད

བིལུ་པིརིན་ཊི (༡༦)

Reading a Casting: Porosity, Cold Shuts and Inclusions Each Name a Cause

Reading a Casting: Porosity, Cold Shuts and Inclusions Each Name a Cause

Forge གྱིསNO

ལྕགས་བཟོ

༣༦
༠
༠
༠
༠
༠
Pouring Temperature: Too Cold Misruns, Too Hot Tears the Mould

Pouring Temperature: Too Cold Misruns, Too Hot Tears the Mould

Forge གྱིསNO

ལྕགས་བཟོ

༣༡
༠
༠
༠
༠
༠
Risers: Metal Shrinks When It Freezes, and the Hole Goes Somewhere

Risers: Metal Shrinks When It Freezes, and the Hole Goes Somewhere

Forge གྱིསNO

ལྕགས་བཟོ

༤༠
༠
༠
༠
༠
༠
Gating: Getting the Metal In Without Wrecking the Mould

Gating: Getting the Metal In Without Wrecking the Mould

Forge གྱིསNO

ལྕགས་བཟོ

༤༡
༠
༠
༠
༠
༠
Moulding Sand: Holding a Shape and Letting the Gas Out

Moulding Sand: Holding a Shape and Letting the Gas Out

Forge གྱིསNO

ལྕགས་བཟོ

༤༠
༠
༠
༠
༠
༠
Punching and Drifting: A Hole Without Removing Metal

Punching and Drifting: A Hole Without Removing Metal

Forge གྱིསNO

ལྕགས་བཟོ

༢༩
༠
༠
༠
༠
༠
Upsetting: Making It Thicker by Making It Shorter

Upsetting: Making It Thicker by Making It Shorter

Forge གྱིསNO

ལྕགས་བཟོ

༤༦
༠
༠
༠
༠
༠
The Hammer Blow: Let It Fall, Do Not Force It

The Hammer Blow: Let It Fall, Do Not Force It

Forge གྱིསNO

ལྕགས་བཟོ

༤༥
༠
༠
༠
༠
༠
What Heat Costs: Scale, Grain Growth and Burnt Steel

What Heat Costs: Scale, Grain Growth and Burnt Steel

Forge གྱིསNO

ལྕགས་བཟོ

༣༤
༠
༠
༠
༠
༠
The Surface Is Not the Centre: Thermal Mass and Soak Time

The Surface Is Not the Centre: Thermal Mass and Soak Time

Penny གྱིསDK

དངོས་ཁམས་རིག

༤༣
༠
༠
༠
༠
༠
Running the Fire: The Bed, the Air, and the Sweet Spot

Running the Fire: The Bed, the Air, and the Sweet Spot

Forge གྱིསNO

ལྕགས་བཟོ

༣༣
༠
༠
༠
༠
༠
Reading Heat by Colour: The Oldest Thermometer, and Its Two Conditions

Reading Heat by Colour: The Oldest Thermometer, and Its Two Conditions

Forge གྱིསNO

ལྕགས་བཟོ

༣༥
༠
༠
༠
༠
༠
Oxidising, Neutral and Reducing: What the Fire Does to the Work

Oxidising, Neutral and Reducing: What the Fire Does to the Work

Forge གྱིསNO

ལྕགས་བཟོ

༤༥
༠
༠
༠
༠
༠
Measuring High Temperature: Thermocouples, Pyrometers, and What Each Lies About

Measuring High Temperature: Thermocouples, Pyrometers, and What Each Lies About

Penny གྱིསDK

དངོས་ཁམས་རིག

༤༢
༠
༠
༠
༠
༠
Heating Evenly: Why Thin Bits Burn While Thick Bits Are Still Cold

Heating Evenly: Why Thin Bits Burn While Thick Bits Are Still Cold

Forge གྱིསNO

ལྕགས་བཟོ

༣༨
༠
༠
༠
༠
༠
Making Window Glass by the Crown Glass Method — Spinning Molten Glass into Flat Panes

Making Window Glass by the Crown Glass Method — Spinning Molten Glass into Flat Panes

Forge གྱིསNO

ཤེལ་བཟོ

༦༩
༠
༠
༠
༢
༠
ཆ་མཉམ་ 16 སྟོན་ཡོདཔ།