Pakikipagtulungan
SINING
BEAUTY AT WELLNESS
CRAFTS
KULTURA AT KASAYSAYAN
LIBANGAN
KAPALIGIRAN
PAGKAIN AT INUMIN
REVERSE ENGINEERING
AGHAM
ISPORTS
TEKNOLOHIYA
MGA WEARABLE
Longquan Celadon Bowls: Glaze of Glaze Stone, Husk-and-Lime Ash and Zijin Clay, Reduction Fired
Daderot · CC0
Clay

Nilikha ni

Clay

1. Nobyembre 2026DK
9
0
0
0
0

Longquan Celadon Bowls: Glaze of Glaze Stone, Husk-and-Lime Ash and Zijin Clay, Reduction Fired

Longquan celadon, made in Longquan, China, since the 10th century, is a thick jade-green glaze over a bisque-fired body. The glaze is three powders washed out of local materials: glaze stone, the ash of rice husk burnt together with limestone, and iron-rich Zijin clay. Fired in reduction between 900 and 1230 °C, the iron in the glaze turns blue-green. Result: thick-glazed, jade-green celadon bowls. Source: the video 'Longquan celadon' by Shanbai (2025), checked frame by frame against its captions. Not given: amounts, the glaze proportion, ageing times, how iron is taken out, firing times. Unknown: the clay body of the bowls; the video does not show it. Photo: Southern Song Longquan bowl, Royal Ontario Museum, by Daderot (CC0).
Abantado
several weeks

Mga Tagubilin

1

Watch: Longquan celadon from stone to bowl

The whole process in eight minutes, by Shanbai: preparing the three glaze materials, throwing and bisque firing the bowls, glazing, and the reduction firing.
2

Pound the glaze stone

Crush the glaze stone in a stone mortar with a foot-trodden pestle.

Mga materyales para sa hakbang na ito:

Batong pang-glazeBatong pang-glaze1 as required

Mga kailangang kasangkapan:

Pambayong tinatapakanPambayong tinatapakan
3

Sieve and settle the stone

Sieve the crushed stone and pound the coarse bits again. Stir the fine stone into water in a vat, sieve off the fine particles suspended in the water into another vat, and let them settle.

Mga kailangang kasangkapan:

Set ng salaan (sunod-sunod na butas)Set ng salaan (sunod-sunod na butas)
TubigTubig
Garapong Seramiko na May TakipGarapong Seramiko na May Takip
SandokSandok
4

Burn rice husk with limestone

In a brick-edged bed outdoors, lay rice husk and limestone in alternate layers and burn them. Turn the materials several times during the firing so the husk burns completely.

Mga materyales para sa hakbang na ito:

Ipa ng palayIpa ng palay1 as required
Bloke ng apog na batoBloke ng apog na bato1 as required

Mga kailangang kasangkapan:

LadrilyoLadrilyo
PalaPala
5

Sieve and wash the ash

Sieve the ash into a vat. Add water and ladle it through a fine sieve into a fresh vat. While this 'black glaze' settles, change the water and wash it several times.

Mga kailangang kasangkapan:

Set ng salaan (sunod-sunod na butas)Set ng salaan (sunod-sunod na butas)
Garapong Seramiko na May TakipGarapong Seramiko na May Takip
TubigTubig
SandokSandok
6

Mill and settle the Zijin clay

Grind the dry Zijin clay to powder in a stone hand mill. Mix it well with water, sieve it into a fresh vat and let the fine particles settle.

Mga materyales para sa hakbang na ito:

Luwad na ZijinLuwad na Zijin1 as required

Mga kailangang kasangkapan:

Gilingang bato na de-kamayGilingang bato na de-kamay
TubigTubig
Set ng salaan (sunod-sunod na butas)Set ng salaan (sunod-sunod na butas)
Garapong Seramiko na May TakipGarapong Seramiko na May Takip
7

Dewater in bags, then age

Drain the water off each of the three vats without stirring up the settled powder. Scoop each paste into a cloth bag, lay the bags on a board and press them under a millstone. When they are dewatered to a certain degree, let them age for a while. Not given: how long. Ours: linen bags (as in the transcript).

Mga kailangang kasangkapan:

SandokSandok
Supot na linoSupot na lino
Batong gilingan ng kamayBatong gilingan ng kamay
8

Throw the bowls

Throw the bowls on the wheel and let them air-dry in the shade. Unknown: the clay body; the video does not show what it is or how it is made.

Mga materyales para sa hakbang na ito:

Hindi kilalang katawang luwadHindi kilalang katawang luwad1 as required

Mga kailangang kasangkapan:

Gulong ng magpapalayokGulong ng magpapalayok
9

Trim and stamp

Set each dry bowl upside down on a chuck on the wheel, trim the outside and the foot smooth, and stamp your mark in the foot.

Mga kailangang kasangkapan:

Gulong ng magpapalayokGulong ng magpapalayok
Mga kasangkapan sa paglilikot ng basang kahoyMga kasangkapan sa paglilikot ng basang kahoy
Tatak ng magpapalayokTatak ng magpapalayok
10

Bisque fire at about 800 °C

Stack the bowls in the kiln, brick up the door and seal it with mud, and fire with wood to about 800 °C. The bisque firing makes the body stronger and more absorbent, so the glaze takes better.

Mga kailangang kasangkapan:

PugonPugon
LadrilyoLadrilyo
PanggatongPanggatong
PirometroPirometro
11

Make the glaze

Mix the burnt husk-and-lime ash, the glaze stone and the Zijin clay in proportion, add about an equal amount of water, stir and grind fine. Sieve it, take out the iron, and let the glaze age in the glaze vat. Not given: the proportion, how the iron is removed, how long it ages. Rice husk ash, glaze stone and Zijin clay give the silica, feldspar and kaolin; Zijin clay's iron is the colourant; lime and the potash and soda of feldspar lower the melting point.

Mga kailangang kasangkapan:

Batong Almires at PanghaloBatong Almires at Panghalo
TubigTubig
Set ng salaan (sunod-sunod na butas)Set ng salaan (sunod-sunod na butas)
Garapong Seramiko na May TakipGarapong Seramiko na May Takip
12

Dip the bowls

Hold each bisque bowl with wire tongs and dip it into the glaze. Let it air-dry.

Mga kailangang kasangkapan:

Panghawak na pansawsawPanghawak na pansawsaw
Garapong Seramiko na May TakipGarapong Seramiko na May Takip
13

Spray on more glaze

Set the bowl upside down on a chuck on the wheel and spray glaze evenly over the outside with a mouth-blown sprayer. Repeated bisque firings, dipping and thin spray coats build a thick glaze; Longquan celadon is a lime-alkali glaze that stays put at high temperature. Scrape the glaze off the foot with a knife.

Mga kailangang kasangkapan:

Gulong ng magpapalayokGulong ng magpapalayok
Spray ng glaze na hinihipanSpray ng glaze na hinihipan
KutsilyoKutsilyo
14

Reduction fire in saggars

Set the bowls in saggars, stack them in the kiln and seal the door. Between 900 °C and 1230 °C, feed fuel often, and when combustion is insufficient fire in reduction: the iron in the glaze gives up oxygen, and the mix of divalent and trivalent iron turns the glaze blue-green. Not given: how long the firing takes.

Mga kailangang kasangkapan:

Kahong luwad na matibay sa apoyKahong luwad na matibay sa apoy
PugonPugon
LadrilyoLadrilyo
PanggatongPanggatong
PirometroPirometro

Mga Materyales

5

Mga Kinakailangang Kasangkapan

21

Ang blueprint na ito ay gumagawa ng

Thumbnail
Placeholder

Mangkok na celadon ng Longquan

Free

4
0

Kaugnay na Blueprint

Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo

Building a Clay Kiln — The First Furnace

Building a Clay Kiln — The First Furnace

ni ForgeNO

Paggawa ng Metal

269
0
0
0
5
0
Constructing a Roman Updraft Pottery Kiln — Ceramic Firing Technology

Constructing a Roman Updraft Pottery Kiln — Ceramic Firing Technology

ni ClayDK

Seramika at Luwad

143
0
0
0
0
0

CC0 Pampublikong Domain

Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.

Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.

Talakayan

(0)

Mag-login upang sumali sa talakayan

Naglo-load ng mga komento...