Soak in gasoline for degreasing. This is the key to long-term preservation. If the grease in the bone cannot be removed, it will become moldy and black in the future. If you don't have a big enough container, you can put the sheep's head in several layers of plastic bags, pour gasoline and tie the bag tightly. (Fireworks are strictly prohibited in this treatment, and it must be carried out outdoors! ! The degreasing time of gasoline depends on the amount of oil in the skull, which usually takes one week. During this period, it is necessary to pour out the old solution of dissolved oil several times and add some new gasoline;
Degreased skull can be bleached with bleaching powder or hydrogen peroxide and soaked to white; Put the skull in the hot sun for a few days until the details are completely dry; Wax and brighten the skull surface. "Description"
Don't care whether the bone fragments fall off during the treatment, you can stick them with glue after all the operations are completed;
The root of the horn and the cranial cavity can be coated with alcohol-phenol saturated solution for anticorrosion.
Animal skulls are loved by people because of their natural, pollution-free and unique artistic characteristics. Making animal (animal) skull ornaments is a good way to get rich with low cost, high output and low technical requirements. The production method is as follows.
First, prepare medical equipment. Medical scalpel, dissecting scissors, tweezers, cauldron, crock, brush, 2% potassium hydroxide, gasoline, 4% bleaching solution and disinfectant (alcohol).
Second, choose and buy materials. Choose a beautiful and unique animal head.
Third, the production method
1, remove the fur and muscles. Use scalpels and scissors to remove the fur and muscles from the head of an animal (animal) and heat it in a large pot until the muscles on the skull can be basically removed.
2. Remove the cerebral plasma fascia. Soak the cooked skull in 2% potassium hydroxide solution for 2 days. After taking it out, the fascia between the brain marrow and the skull in the cranial cavity was completely removed with scalpel, tweezers and brush.
3. Degreasing and bleaching. Soak the cleaned skull in gasoline for 3 days to remove the fat from the bone. Take it out and put it in 4% bleaching powder solution for 5 days for bleaching. Take it out, wash it with clear water and dry it.
4, anti-corrosion treatment. Soak the bleached skull in antiseptic solution (such as alcohol) 1 day, take it out and air dry naturally. Polishing it beautifully with fine emery cloth.
The first step is to choose meat.
The skin of a fresh crocodile is difficult to cut with a knife. If you cook in boiling water for 5 minutes, you will find that the hard skin has turned into a gel, which can be easily scraped off with a knife.
Note: Cooking time should not be too long, which may easily lead to fracture.
Second step corrosion
The crocodile skull with meat is completely soaked in 30% NAOH (commonly known as caustic soda) solution,
NAOH solution can be prepared by adding NAOH crystal tablets into appropriate amount of water in advance. NAOH crystals are sold in pharmacies and chemical reagent stores, and the specifications are slightly larger. Because NAOH is a strong alkali, improper operation will be dangerous. Some pharmacies need to show their unit certificates. Friends who can't show proof can order from Taobao for about 2 weeks, and use toothbrush awl and iron wire to remove the residual carrion on the bone surface.
degrease
After the second step of corrosion and soaking, the crocodile's big teeth will fall off. Prepare four stickers in advance, divide the upper and lower rows of teeth into two sides and stick them on them in turn. This process is particularly important and will save you unnecessary trouble in the next process. At this time, you can put the crocodile skull in gasoline. At present, private people are not allowed to buy gasoline in oil drums at gas stations. You can have a friend drive a motorcycle to fill up a tank.
After returning home, take out the oil in the motorcycle belly and soak it for 20 days. After soaking, you will find orange marks on the crocodile skull. Don't worry, it's normal.
The fourth step is bleaching.
Air-dry the defatted crocodile skull for one day and soak it in 10% H2O2 solution for two days. Please use rubber gloves when operating, because H2O2 is a strong oxide to avoid whitening and itching of fingers. note:
After bleaching, the connective tissue between bones will be corroded and become loose. Never disassemble a bone. The removed bones will be deformed, and there will be huge errors in assembly.
The fifth step is to nurse.
Air-dry the bleached skull, reinforce the loose gap with 502 glue, and then put the teeth back into the alveoli one by one. The structure of fixing crocodile mouth with 502 glue is interesting. There are two holes to prevent the lower teeth from biting the upper lip.
1. Pi
2. Boil the water and remove the meat. Be sure to remove as much meat as possible, gouge out your eyes and smash your brain as clean as possible.
3. Boil 1%-2% NAOH, put the skull in and cook for 10 to 15 minutes.
4. Soak and bleach with hydrogen peroxide.
5 cleaning, soaking in hydrogen peroxide (about 1 day),
6 soak in formalin solution and finally air dry!
7 sealing wax.